Professor Geraint Lewis

Professor

Telephone +61 2 9351 5184
Fax +61 2 9351 7726

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Research interests

Professor Geraint Lewis undertakes a broad spectrum of research. On the largest scales, his program involves looking at the influence of dark energy and dark matter on the evolution and ultimate fate of the Universe. Another aspect of his research uses the phenomenon of gravitational lensing to probe the nature and distribution of the pervasive dark matter, and employing individual stars to magnify the hearts of quasars, the most luminous objects in the Universe. Closer to home, Geraint's research focuses upon Galactic cannibalism, where small dwarf galaxies are torn apart by the much more massive Milky Way and Andromeda Galaxy. Using telescopes from around the world, including the 10-m Keck telescope in Hawaii, he has mapped the tell-tale signs of tidal disruption and destruction, providing important clues to how large galaxies have grown over time.

International links

France

(Strasbourg Observatory, The University of Strasbourg) Long-term collaboration on galactic archaeology and gravitational lensing.

United Kingdom

(Institute of Astronomy, The University of Cambridge) Long-term collaboration on galactic archaeology

Selected grants

2014

  • Mapping the Universe with the SkyMapper Telescope; Gaensler B, Mould J, Kaiser N, Schmidt B, Drinkwater M, Staveley-Smith L, Colless M, Webster R, Tingay S, Brown M, Magweva F, Meyer M, Davis T, Parkinson D, Lewis G, Ryan-Weber E, Wyithe S, Chambers K, Meurer H, Sadler E, Lagattuta D, Brough S, Murphy T, Croom S, Burgett W, Hasinger G; Australian Research Council (ARC)/Linkage Infrastructure, Equipment and Facilities (LIEF).

2013

  • Observing the Synthetic Universe: Revealing the Dark Cosmos with Future Telescopes; Lewis G, Power C, Poole G, Obreschkow D, Knebe A, Kawata D; Australian Research Council (ARC)/Discovery Projects (DP).

2011

  • Spectral methods in cosmology: structure formation, interactions, light propagation, and cosmological observations; Bolejko K, Bolejko K, Lewis G; DVC Research/Postdoctoral Research Fellowship Scheme.
  • Accretion and feedback in galaxies with cosmic time; Bland-Hawthorn J, Croom S, Lewis G, Colless M, Silk J, Barnes L; Australian Research Council (ARC)/Super Science Fellowships.
  • Caught in the Act: an unparalleled view of galaxy evolution; Lewis G, McConnachie A, Irwin M, McConnachie A; Australian Research Council (ARC)/Discovery Projects (DP).
  • Caught in the act by PAndAS: An unparalleled view of galaxy evolution; Lewis G; Australian Research Council (ARC)/Future Fellowships (FT).
  • Accretion and feedback in galaxies with cosmic time; Bland-Hawthorn J, Croom S, Lewis G, Colless M, Silk J; Australian Research Council (ARC)/Super Science Fellowships.

2009

  • Evolution of Galaxies; Lewis G; DVC Research/International Visiting Research Fellowship (IVRF).
  • The Pan-Andromeda Archaeological Survey (PAndAS); Lewis G; Australian Nuclear Science and Technology Organisation/Travel Grant.

2007

  • Field Plate for the 6dF Spectrograph; Lewis G, et a, Parker Q; Australian Research Council (ARC)/Linkage Infrastructure, Equipment and Facilities (LIEF).
  • Galactic Archaeology: A radial velocity experiment to unveil the history of the milky way; Bedding T, Bland-Hawthorn J, Lewis G, Bland-Hawthorn J, Freeman K, Parker Q, Gibson B, Gibson B; Australian Research Council (ARC)/Discovery Projects (DP).

2006

  • The Commonwealth cosmology initiative: from the first objects to the cosmic web; Lewis G; Australian Research Council (ARC)/Discovery Projects (DP).

2004

  • Building the future of theoretical astrophysics: Views of the virtual Universe; Bedding T, Lewis G, Wheatland M; Australian Research Council (ARC)/Discovery Projects (DP).

2003

  • Uncovering the formation history of the Milky Way and the Andromeda galaxy; Lewis G; DVC Research/Research and Development Scheme: Newly Appointed Staff (NAS).
  • Calibrating cosmology : The near-field approach to galaxy formation; Lewis G, Gibson B; Australian Research Council (ARC)/Discovery Projects (DP).

Selected publications

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Book Chapters

  • Lewis, G. (2003). Galactic Cannibalism: A Universe of Islands. In Nicholls, Pailthorpe (Eds.), From Zero to Infinity, (pp. 181-193). Sydney: Science Foundation for Physics.

Journals

  • Diakogiannis, F., Lewis, G., Ibata, R. (2014). Dynamical modelling of NGC 6809: Selecting the best model using bayesian inference. Monthly Notices of the Royal Astronomical Society, 437(4), 3172-3182-3172-3182. [More Information]
  • Carlesi, E., Knebe, A., Lewis, G., Wales, S., Yepes, G. (2014). Hydrodynamical simulations of coupled and uncoupled quintessence models-I. Halo properties and the cosmic web. Royal Astronomical Society. Monthly Notices, 439(3), 2943-2957-2943-2957. [More Information]
  • Carlesi, E., Knebe, A., Lewis, G., Yepes, G. (2014). Hydrodynamical simulations of coupled and uncoupled quintessence models-II. galaxy clusters. Royal Astronomical Society. Monthly Notices, 439(3), 2958-2969-2958-2969. [More Information]
  • Bate, N., Conn, A., McMonigal, B., Lewis, G., Martin, N., McConnachie, A., Veljanoski, J., Mackey, A., Ferguson, A., Ibata, R., et al (2014). Major substructure in the M31 outer halo: The south-west cloud. Monthly Notices of the Royal Astronomical Society, 437(4), 3362-3372-3362-3372. [More Information]
  • Belokurov, V., Koposov, S., Evans, N., Penarrubia, J., Irwin, M., Smith, M., Lewis, G., Gieles, M., Wilkinson, M., Gilmore, G., et al (2014). Precession of the sagittarius stream. Royal Astronomical Society. Monthly Notices, 437(1), 116-131-116-131. [More Information]
  • Ibata, R., Lewis, G., McConnachie, A., Martin, N., Irwin, M., Ferguson, A., Babul, A., Bernard, E., Chapman, S., Collins, M., et al (2014). The large-scale structure of the halo of the Andromeda galaxy. I. Global stellar density, morphology and metallicity properties. The Astrophysical Journal: an international review of astronomy and astronomical physics, 780(2), Article number 128. [More Information]
  • Collins, M., Chapman, S., Rich, R., Ibata, R., Martin, N., Irwin, M., Bate, N., Lewis, G., Penarrubia, J., Arimoto, N., et al (2014). The masses of local group dwarf spheroidal galaxies: The death of the universal mass profile. The Astrophysical Journal: an international review of astronomy and astronomical physics, 783(1), Article number 7. [More Information]
  • Collins, M., Chapman, S., Rich, R., Ibata, R., Martin, N., Irwin, M., Bate, N., Lewis, G., Penarrubia, J., Arimoto, N., et al (2013). A kinematic study of the andromeda dwarf spheroidal system. The Astrophysical Journal: an international review of astronomy and astronomical physics, 768(2), 1-36. [More Information]
  • Mackey, A., Huxor, A., Martin, N., Ferguson, A., Dotter, A., McConnachie, A., Ibata, R., Irwin, M., Lewis, G., Sakari, C., et al (2013). A peculiar faint satellite in the remote outer halo of M31. The Astrophysical Journal Letters, 770(2), 1-3. [More Information]
  • Ibata, R., Lewis, G., Conn, A., Irwin, M., McConnachie, A., Chapman, S., Collins, M., Fardal, M., Ferguson, A., Ibata, N., et al (2013). A vast, thin plane of corotating dwarf galaxies orbiting the Andromeda galaxy. Nature, 493(7430), 62-65. [More Information]
  • Freeman, K., Ness, M., Wylie-De Boer, E., Athanassoula, E., Bland-Hawthorn, J., Asplund, M., Lewis, G., Yong, D., Lane, R., Kiss, L., et al (2013). ARGOS - II. The Galactic bulge survey. Monthly Notices of the Royal Astronomical Society, 428(4), 3660-3670. [More Information]
  • Ness, M., Freeman, K., Athanassoula, E., Wylie-De Boer, E., Bland-Hawthorn, J., Asplund, M., Lewis, G., Yong, D., Lane, R., Kiss, L. (2013). ARGOS - III. Stellar populations in the Galactic bulge of the Milky Way. Monthly Notices of the Royal Astronomical Society, 430, 836-857. [More Information]
  • Ness, M., Freeman, K., Athanassoula, E., Wylie-De Boer, E., Bland-Hawthorn, J., Asplund, M., Lewis, G., Yong, D., Lane, R., Kiss, L., et al (2013). ARGOS - IV. The kinematics of the Milky Way bulge. Royal Astronomical Society. Monthly Notices, 432(3), 2092-2103. [More Information]
  • Ibata, R., Lewis, G., Martin, N., Bellazzini, M., Correnti, M. (2013). Does the Sagittarius Stream Constrain the Milky Way Halo to be Triaxial? The Astrophysical Journal Letters, 765(1), 1-5. [More Information]
  • Chapman, S., Widrow, L., Collins, M., Dubinski, J., Ibata, R., Rich, R., Ferguson, A., Irwin, M., Lewis, G., Martin, N., et al (2013). Dynamics in the satellite system of Triangulum: is And XXII a dwarf satellite of M33? Monthly Notices of the Royal Astronomical Society, 430(1), 37-49. [More Information]
  • Fardal, M., Weinberg, M., Babul, A., Irwin, M., Guhathakurta, P., Gilbert, K., Ferguson, A., Ibata, R., Lewis, G., Tanvir, N., et al (2013). Inferring the Andromeda Galaxy's mass from its giant southern stream with Bayesian simulation sampling. Royal Astronomical Society. Monthly Notices, 434(4), 2779-2802. [More Information]
  • Veljanoski, J., Ferguson, A., Mackey, A., Huxor, A., Irwin, M., Cote, P., Tanvir, N., Bernard, E., Chapman, S., Ibata, R., Lewis, G., et al (2013). Kinematics of outer halo globular clusters in M31. The Astrophysical Journal Letters, 768(2), 1-5. [More Information]
  • Lewis, G. (2013). Matter matters: Unphysical properties of the Rh = ct universe. Monthly Notices of the Royal Astronomical Society, 432(3), 2324-2330. [More Information]
  • Kafle, P., Sharma, S., Lewis, G., Bland-Hawthorn, J. (2013). Metallicity bias in the kinematics of the Milky Way Stellar Halo. Monthly Notices of the Royal Astronomical Society, 430(4), 2973-2978. [More Information]
  • Veljanoski, J., Ferguson, A., Huxor, A., Mackey, A., Fishlock, C., Irwin, M., Tanvir, N., Chapman, S., Ibata, R., Lewis, G., et al (2013). Newly discovered globular clusters in NGC 147 and NGC 185 from PAndAS. Royal Astronomical Society. Monthly Notices, 435(4), 3654-3666. [More Information]
  • Lewis, G., Braun, R., McConnachie, A., Irwin, M., Ibata, R., Chapman, S., Ferguson, A., Martin, N., Fardal, M., Dubinski, J., et al (2013). PAndAS in the mist: The stellar and gaseous mass within the halos of M31 and M33. The Astrophysical Journal: an international review of astronomy and astronomical physics, 763(1), 1-10. [More Information]
  • Lewis, G. (2013). Phantom energy and the Cosmic Horizon: Rh is still not a horizon!. Monthly Notices of the Royal Astronomical Society, 431(1), L25-L27. [More Information]
  • Trowland, H., Lewis, G., Bland-Hawthorn, J. (2013). The cosmic history of the spin of dark matter halos within the large-scale structure. The Astrophysical Journal: an international review of astronomy and astronomical physics, 762, 1-12. [More Information]
  • Martin, N., Ibata, R., McConnachie, A., Mackey, A., Ferguson, A., Irwin, M., Lewis, G., Fardal, M. (2013). The PAndAS view of the andromeda satellite system. I. A Bayesian search for dwarf galaxies using spatial and color-magnitude information. The Astrophysical Journal: an international review of astronomy and astronomical physics, 776(2), 1-18. [More Information]
  • Conn, A., Lewis, G., Ibata, R., Parker, Q., Zucker, D., McConnachie, A., Martin, N., Valls-Gabaud, D., Tanvir, N., Irwin, M., et al (2013). The three-dimensional structure of the m31 satellite system; Strong evidence for an inhomogeneous distribution of satellites. The Astrophysical Journal: an international review of astronomy and astronomical physics, 766(2), 1-16. [More Information]
  • Cockcroft, R., McConnachie, A., Harris, W., Ibata, R., Irwin, M., Ferguson, A., Fardal, M., Babul, A., Chapman, S., Lewis, G., et al (2013). Unearthing foundations of a cosmic cathedral: searching the stars for M33’s halo. Monthly Notices of the Royal Astronomical Society, 428(2), 1248-1262. [More Information]
  • Mackey, A., Huxor, A., Ferguson, A., Irwin, M., Veljanoski, J., McConnachie, A., Ibata, R., Lewis, G., Tanvir, N. (2013). Young accreted globular clusters in the outer halo of M31. Monthly Notices of the Royal Astronomical Society, 429(1), 281-293. [More Information]
  • Conn, A., Ibata, R., Lewis, G., Parker, Q., Zucker, D., Martin, N., McConnachie, A., Irwin, M., Tanvir, N., Fardal, M., et al (2012). A Bayesian Approach to Locating the Red Giant Branch Tip Magnitude. II. Distances to the Satellites of M31. The Astrophysical Journal: an international review of astronomy and astronomical physics, 758(1), 1-19. [More Information]
  • McMonigal, B., Lewis, G., O'Byrne, P. (2012). Alcubierre warp drive: On the matter of matter. Physical Review D (Particles, Fields, Gravitation and Cosmology), 85(6), 1-11. [More Information]
  • Fogarty, L., Bland-Hawthorn, J., Croom, S., Green, A., Bryant, J., Lawrence, J., Richards, S., Allen, J., Bauer, A., Birchall, M., Lewis, G., Trowland, H., Leon-Saval, S., Min, S., Trinh, C., et al (2012). First science with SAMI: A serendipitously discovered galactic wind in ESO 185-G031. The Astrophysical Journal: an international review of astronomy and astronomical physics, 761(2), 1-12. [More Information]
  • Killedar, M., Lasky, P., Lewis, G., Fluke, C. (2012). Gravitational lensing with three-dimensional ray tracing. Royal Astronomical Society. Monthly Notices, 420(1), 155-169. [More Information]
  • Lewis, G., van Oirschot, P. (2012). How does the Hubble sphere limit our view of the universe? Monthly Notices of the Royal Astronomical Society. Letters (Online), 423(1), L26-L29. [More Information]
  • Kafle, P., Sharma, S., Lewis, G., Bland-Hawthorn, J. (2012). Kinematics of the Stellar Halo and the Mass Distribution of the Milky Way Using Blue Horizontal Branch Stars. The Astrophysical Journal: an international review of astronomy and astronomical physics, 761(2), 1-17. [More Information]
  • Kwan, J., Lewis, G., Linder, E. (2012). Mapping growth and gravity with robust redshift space distortions. The Astrophysical Journal: an international review of astronomy and astronomical physics, 748(2), 1-12. [More Information]
  • Garsden, H., Bate, N., Lewis, G. (2012). Probing planetary mass dark matter in galaxies: Gravitational nanolensing of multiply imaged quasars. Monthly Notices of the Royal Astronomical Society, 420(4), 3574-3586. [More Information]
  • Conn, B., Noel, N., Rix, H., Lane, R., Lewis, G., Irwin, M., Martin, N., Ibata, R., Dolphin, A., Chapman, S. (2012). Slicing the monoceros overdensity with suprime-cam. The Astrophysical Journal: an international review of astronomy and astronomical physics, 754(2), 1-15. [More Information]
  • McCavana, T., Micic, M., Lewis, G., Sinha, M., Sharma, S., Holley-Bocklemann, K., Bland-Hawthorn, J. (2012). The lives of high-redshift mergers. Royal Astronomical Society. Monthly Notices, 424(1), 361-371. [More Information]
  • Ness, M., Freeman, K., Athanassoula, E., Wylie-De Boer, E., Bland-Hawthorn, J., Lewis, G., Yong, D., Asplund, M., Lane, R., Kiss, L., et al (2012). The origin of the split red clump in the galactic bulge of the milky way. The Astrophysical Journal: an international review of astronomy and astronomical physics, 756(1), 1-8. [More Information]
  • Davidge, T., McConnachie, A., Fardal, M., Fliri, J., Valls-Gabaud, D., Chapman, S., Lewis, G., Rich, R. (2012). The recent stellar archeology of M31 - The nearest red disk galaxy. The Astrophysical Journal: an international review of astronomy and astronomical physics, 751(1), 1-26. [More Information]
  • Koposov, S., Belokurov, V., Evans, N., Gilmore, G., Gieles, M., Irwin, M., Lewis, G., Neiderste-Ostholt, M., Penarrubia, J., Smith, M., et al (2012). The sagittarius streams in the southern galactic hemisphere. The Astrophysical Journal: an international review of astronomy and astronomical physics, 750(1), 1-9. [More Information]
  • Bernard, E., Ferguson, A., Barker, M., Hidalgo, S., Ibata, R., Irwin, M., Lewis, G., McConnachie, A., Monelli, M., Chapman, S. (2012). The star formation history and dust content in the far outer disc of M31. Royal Astronomical Society. Monthly Notices, 420(3), 2625-2643. [More Information]
  • Tanvir, N., Mackey, A., Ferguson, A., Huxor, A., Read, J., Lewis, G., Irwin, J., Chapman, S., Ibata, R., Wilkinson, M., et al (2012). The structure of star clusters in the outer halo of M31. Royal Astronomical Society. Monthly Notices, 422(1), 162-184. [More Information]
  • Croom, S., Lawrence, J., Bland-Hawthorn, J., Bryant, J., Fogarty, L., Richards, S., Goodwin, M., Farrell, T., Miziarski, S., Heald, R., Leon-Saval, S., Lewis, G., Min, S., Trinh, C., Trowland, H., et al (2012). The Sydney-AAO Multi-object Integral field spectrograph. Royal Astronomical Society. Monthly Notices, 421(1), 872-893. [More Information]
  • Callingham, J., Farrell, S., Gaensler, B., Lewis, G., Middleton, M. (2012). The x-ray transient 2XMMi J003833.3+402133: A candidate magnetar at high galactic latitude. The Astrophysical Journal: an international review of astronomy and astronomical physics, 757(2), 1-9. [More Information]
  • Conn, A., Lewis, G., Ibata, R., Parker, Q., Zucker, D., McConnachie, A., Martin, N., Irwin, M., Tanvir, N., Fardal, M., et al (2011). A Bayesian Approach to Locating the Red Giant Branch Tip Magnitude. I. The Astrophysical Journal: an international review of astronomy and astronomical physics, 740(69), 1-11. [More Information]
  • Conn, B., Pasquali, A., Pompei, E., Lane, R., Chene, A., Smith, R., Lewis, G. (2011). A new collisional ring galaxy at z = 0.111: Auriga's Wheel. The Astrophysical Journal: an international review of astronomy and astronomical physics, 741(2), 80-1-80-6. [More Information]
  • Lane, R., Kiss, L., Lewis, G., Ibata, R., Siebert, A., Bedding, T., Székely, G., Szabo, G. (2011). AAOmega spectroscopy of 29 351 stars in fields centered on ten Galactic globular clusters. Astronomy and Astrophysics (A and A), 530, A31-1-A31-6. [More Information]
  • Carlberg, R., Richer, H., McConnachie, A., Irwin, M., Ibata, R., Dotter, A., Chapman, S., Fardal, M., Ferguson, A., Lewis, G., et al (2011). Density variations in the NW Stars Stream of M31∗. The Astrophysical Journal: an international review of astronomy and astronomical physics, 731(2), Article 124 - 1-Article 124 - 10. [More Information]
  • Huxor, A., Ferguson, A., Tanvir, N., Irwin, M., Mackey, A., Ibata, R., Bridges, T., Chapman, S., Lewis, G. (2011). Exploring the properties of the M31 halo globular cluster system. Royal Astronomical Society. Monthly Notices, 414(1), 770-780. [More Information]
  • Kedziora, D., Garsden, H., Lewis, G. (2011). Gravitational microlensing as a probe of the electron-scattering region in Q2237+0305. Royal Astronomical Society. Monthly Notices, 415(2), 1409-1418. [More Information]
  • Garsden, H., Bate, N., Lewis, G. (2011). Gravitational microlensing of a reverberating quasar broad-line region - I. Method and qualitative results. Royal Astronomical Society. Monthly Notices, 418(2), 1012-1027. [More Information]
  • Brewer, B., Lewis, G., Belokurov, V., Irwin, M., Bridges, T., Evans, N. (2011). Modelling of the Complex CASSOWARY/SLUGS Gravitational Lenses. Royal Astronomical Society. Monthly Notices, 412(4), 1-9. [More Information]
  • Penarrubia, J., Zucker, D., Irwin, M., Hyde, E., Lane, R., Lewis, G., Gilmore, G., Evans, N., Belokurov, V. (2011). No Evidence for Internal Rotation in the Remnant Core of the Sagittarius Dwarf. The Astrophysical Journal Letters, 727, L2-1-L2-5. [More Information]
  • Richardson, J., Irwin, M., McConnachie, A., Martin, N., Dotter, A., Ferguson, A., Ibata, R., Chapman, S., Lewis, G., Tanvir, N., et al (2011). PAndAS' progeny: Extending the M31 dwarf galaxy CABAL. The Astrophysical Journal: an international review of astronomy and astronomical physics, 732(2), 76-1-76-14. [More Information]
  • Varghese, A., Ibata, R., Lewis, G. (2011). Stellar streams as probes of dark halo mass and morphology: a Bayesian reconstruction. Royal Astronomical Society. Monthly Notices, 417, 198-215.
  • Collins, M., Chapman, S., Ibata, R., Irwin, J., Rich, R., Ferguson, A., Lewis, G., Tanvir, N., Koch, A. (2011). The kinematic identification of a thick stellar disc in M31. Royal Astronomical Society. Monthly Notices, 413(3), 1548-1568. [More Information]
  • Cockcroft, R., Harris, W., Ferguson, A., Huxor, A., Ibata, R., Irwin, M., McConnachie, A., Woodley, K., Chapman, S., Lewis, G., et al (2011). The M33 globular cluster system with PAndAS data: The last outer halo cluster? The Astrophysical Journal: an international review of astronomy and astronomical physics, 730(2), 1-12. [More Information]
  • Collins, M., Chapman, S., Rich, R., Irwin, M., Penarrubia, J., Ibata, R., Arimoto, N., Brooks, A., Ferguson, A., Lewis, G., et al (2011). The scatter about the 'Universal' dwarf spheroidal mass profile: A kinematic study of the M31 satellites And V and And VI. Royal Astronomical Society. Monthly Notices, 417(2), 1170-1182. [More Information]
  • Barker, M., Ferguson, A., Cole, A., Ibata, R., Irwin, M., Lewis, G., Smecker-Hane, T., Tanvir, N. (2011). The star formation history in the far outer disc of M33. Royal Astronomical Society. Monthly Notices, 410(1), 504-516. [More Information]
  • Garsden, H., Lewis, G., Harvey-Smith, L. (2011). The water maser in MG 0414+0534: The influence of gravitational microlensing. Royal Astronomical Society. Monthly Notices, 413(3), 1537-1547. [More Information]
  • Collins, M., Chapman, S., Irwin, M., Martin, N., Ibata, R., Zucker, D., Blain, A., Ferguson, A., Lewis, G., McConnachie, A., et al (2010). A Keck/DEIMOS spectroscopic survey of the faint M31 satellites And IX, And XI, And XII and And XIII. Royal Astronomical Society. Monthly Notices, 407(4), 2411-2433.
  • Lane, R., Brewer, B., Kiss, L., Lewis, G., Ibata, R., Siebert, A., Bedding, T., Szekely, P., Szabo, G. (2010). AAOMEGA observations of 47 tucanae: Evidence for a past merger? The Astrophysical Journal Letters, 711(2), L122-L126.
  • Bate, N., Fluke, C., Barsdell, B., Garsden, H., Lewis, G. (2010). Computational advances in gravitational microlensing: A comparison of CPU, GPU, and parallel, large data codes. New Astronomy, 15(8), 726-734.
  • Mackey, A., Ferguson, A., Irwin, M., Martin, N., Huxor, A., Tanvir, N., Chapman, S., Ibata, R., Lewis, G., McConnachie, A. (2010). Deep Gemini/GMOS imaging of an extremely isolated globular cluster in the Local Group. Royal Astronomical Society. Monthly Notices, 401(1), 533-546. [More Information]
  • Mackey, A., Huxor, A., Ferguson, A., Irwin, M., Tanvir, N., McConnachie, A., Ibata, R., Chapman, S., Lewis, G. (2010). Evidence for an accretion origin for the outer halo globular cluster system of M31. The Astrophysical Journal Letters, 717(1), L11-L16.
  • Garsden, H., Lewis, G. (2010). Gravitational microlensing: A parallel, large-data implementation. New Astronomy, 15(2), 181-188.
  • Lane, R., Kiss, L., Lewis, G., Ibata, R., Siebert, A., Bedding, T., Szekely, P., Balog, Z., Szabo, G. (2010). Halo globular clusters observed with AAOmega: Dark matter content, metallicity and tidal heating. Royal Astronomical Society. Monthly Notices, 406(4), 2732-2742.
  • Killedar, M., Lewis, G. (2010). Lyα absorbers in motion: consequences of gravitational lensing for the cosmological redshift drift experiment. Royal Astronomical Society. Monthly Notices, 402, 650-656.
  • Lane, R., Kiss, L., Lewis, G., Ibata, R., Siebert, A., Bedding, T., Szekely, P. (2010). Testing Newtonian gravity with AAOmega: mass-to-light profiles and metallicity calibrations from 47 Tuc and M55. Royal Astronomical Society. Monthly Notices, 401(4), 2521-2530. [More Information]
  • Kwan, J., Lewis, G., James, B. (2010). The Adventures of the Rocketeer: Accelerated Motion Under the Influence of Expanding Space. Astronomical Society of Australia. Publications (Print), 27(1), 15-22.
  • McConnachie, A., Ferguson, A., Irwin, M., Dubinski, J., Widrow, L., Dotter, A., Ibata, R., Lewis, G. (2010). The Photometric Properties of a Vast Stellar Substructure in the Outskirts of M33. The Astrophysical Journal: an international review of astronomy and astronomical physics, 723(2), 1038-1052.
  • van Oirschot, P., Kwan, J., Lewis, G. (2010). Through the looking glass: why the 'cosmic horizon' is not a horizon. Royal Astronomical Society. Monthly Notices, 404(4), 1633-1638.
  • Letarte, B., Chapman, S., Collins, M., Ibata, R., Irwin, M., Ferguson, A., Lewis, G., Martin, N., McConnachie, A., Tanvir, N. (2009). A Keck/DEIMOS spectroscopic survey of the faint M31 satellites And XV and And XVI. Royal Astronomical Society. Monthly Notices, 400(3), 1472-1478.
  • Collins, M., Chapman, S., Irwin, M., Ibata, R., Martin, N., Ferguson, A., Huxor, A., Lewis, G., Mackey, A., McConnachie, A., et al (2009). A spectroscopic survey of EC4, an extended cluster in Andromeda's halo. Royal Astronomical Society. Monthly Notices, 396(3), 1619-1628.
  • Richardson, J., Ferguson, A., Mackey, A., Irwin, M., Chapman, S., Huxor, A., Ibata, R., Lewis, G., Tanvir, N. (2009). An HST/ACS view of the inhomogenous outer halo of M31. Royal Astronomical Society. Monthly Notices, 396(4), 1842-1850.
  • Francis, M., Lewis, G., Linder, E. (2009). Can early dark energy be detected in non-linear structure? Royal Astronomical Society. Monthly Notices, 394(2), 605-614.
  • Ibata, R., Bellazzini, M., Chapman, S., Dalessandro, E., Ferraro, F., Irwin, M., Lanzoni, B., Lewis, G., Mackey, A., Miocchi, P., et al (2009). Density and Kinematic Cusps in M54 at the Heart of the Sagittarius Dwarf Galaxy: Evidence for A 104 M Black Hole? The Astrophysical Journal: an international review of astronomy and astronomical physics, 699(2), L169-L173.
  • Kwan, J., Francis, M., Lewis, G. (2009). Fractal Bubble cosmology: a concordant cosmological model? Royal Astronomical Society. Monthly Notices, 399, L6-L10. [More Information]
  • Francis, M., Lewis, G., Linder, E. (2009). Halo mass functions in early dark energy cosmologies. Royal Astronomical Society. Monthly Notices, 393(1), L31-L35. [More Information]
  • Riechers, D., Walter, F., Carilli, C., Lewis, G. (2009). Imaging The Molecular Gas in a z = 3.9 Quasar Host Galaxy at 0."3 Resolution: A Central, Sub-Kiloparsec Scale Star Formation Reservoir in APM 08279+5255. The Astrophysical Journal: an international review of astronomy and astronomical physics, 690(1), 463-485.
  • Martin, N., McConnachie, A., Irwin, M., Widrow, L., Ferguson, A., Ibata, R., Dubinski, J., Babul, A., Chapman, S., Fardal, M., Lewis, G. (2009). PAndAS' CUBS: Discovery of Two New Dwarf Galaxies in the Surroundings of the Andromeda and Triangulum Galaxies. The Astrophysical Journal: an international review of astronomy and astronomical physics, 705(1), 758-765.
  • Lane, R., Kiss, L., Lewis, G., Ibata, R., Siebert, A., Bedding, T., Szekely, P. (2009). Testing Newtonian gravity with AAOmega: mass-to-light profiles of four globular clusters. Royal Astronomical Society. Monthly Notices, 400(2), 917-923. [More Information]
  • Huxor, A., Ferguson, A., Barker, M., Tanvir, N., Irwin, M., Chapman, S., Ibata, R., Lewis, G. (2009). The Discovery of Remote Globular Clusters in M33. The Astrophysical Journal: an international review of astronomy and astronomical physics, 698(2), L77-L81.
  • McConnachie, A., Irwin, M., Ibata, R., Dubinski, J., Widrow, L., Martin, N., Cote, P., Dotter, A., Navarro, J., Ferguson, A., Lewis, G. (2009). The remnants of galaxy formation from a panoramic survey of the region around M31. Nature, 461(7260), 66-69.
  • James, J., Colless, M., Lewis, G., Peacock, J. (2009). Topology of non-linear structure in the 2dF Galaxy Redshift Survey. Royal Astronomical Society. Monthly Notices, 394(1), 454-466. [More Information]
  • Riechers, D., Walter, F., Brewer, B., Carilli, C., Lewis, G., Bertoldi, F., Cox, P. (2008). A MOLECULAR EINSTEIN RING AT z=4.12: IMAGING THE DYNAMICS OF A QUASAR HOST GALAXY THROUGH A COSMIC LENS. The Astrophysical Journal: an international review of astronomy and astronomical physics, 686(2), 851-858.
  • McConnachie, A., Huxor, A., Martin, N., Irwin, M., Chapman, S., Fahlman, G., Ferguson, A., Ibata, R., Lewis, G., Richer, H., et al (2008). A Trio of New Local Group Galaxies with Extreme Properties. The Astrophysical Journal: an international review of astronomy and astronomical physics, 688(2), 1009-1020.
  • Cioni, M., Irwin, M., Ferguson, A., McConnachie, A., Conn, B., Huxor, A., Ibata, R., Lewis, G., Tanvir, N. (2008). AGB stars as tracers of metallicity and mean age across M 33. Astronomy and Astrophysics (A and A), 487(1), 131-146.
  • Irwin, M., Ferguson, A., Huxor, A., Tanvir, N., Ibata, R., Lewis, G. (2008). Andromeda XVII: A new low-luminosity satellite of M31. The Astrophysical Journal Letters (NO NOT USE), 676(1), L17-L20.
  • Lewis, G., Francis, M., Barnes, L., Kwan, J., James, J. (2008). Cosmological radar ranging in an expanding universe. Royal Astronomical Society. Monthly Notices, 388(3), 960-964.
  • Huxor, A., Tanvir, N., Ferguson, A., Irwin, M., Ibata, R., Bridges, T., Lewis, G. (2008). Globular clusters in the outer halo of M31: the survey. Royal Astronomical Society. Monthly Notices, 385(4), 1989-1997.
  • Conn, B., Lane, R., Lewis, G., Irwin, M., Ibata, R., Martin, N., Bellazzini, M., Tuntsov, A. (2008). The Anglo-Australian Telescope/Wide Field Imager survey of the Monoceros Ring and Canis Major dwarf galaxy - II. From l = (280-025)degrees. Royal Astronomical Society. Monthly Notices, 390(4), 1388-1398.
  • Ibata, R., Lewis, G. (2008). The Cosmic Web in Our Own Backyard. Science, 319, 50-52.
  • Chapman, S., Ibata, R., Irwin, M., Koch, A., Letarte, B., Martin, N., Collins, M., Lewis, G., McConnachie, A., Penarrubia, J., et al (2008). The kinematic footprints of five stellar streams in Andromeda's halo. Royal Astronomical Society. Monthly Notices, 390(4), 1437-1452.
  • Richardson, J., Ferguson, A., Johnson, R., Irwin, M., Tanvir, N., Faria, D., Ibata, R., Johnston, K., Lewis, G., McConnachie, A., et al (2008). The nature and origin of substructure in the outskirts of M31. I. Surveying the stellar content with the Hubble Space Telescope Advanced Camera for Surveys. The Astronomical Journal, 135(6), 1998-2012.
  • Bellazzini, M., Ibata, R., Chapman, S., Mackey, A., Monaco, L., Irwin, M., Martin, N., Lewis, G., Dalessandro, E. (2008). The nucleus of the sagittarius dsph galaxy and m54: a window on the process of galaxy nucleation. The Astronomical Journal, 136, 1147-1170.
  • Knebe, A., Yahagi, H., Kase, H., Lewis, G., Gibson, B. (2008). The radial alignment of dark matter subhaloes: from simulations to observations. Royal Astronomical Society. Monthly Notices, 388(1), L34-L38. [More Information]
  • Brewer, B., Lewis, G. (2008). Unlensing HST observations of the Einstein ring 1RXS J1131-1231: a Bayesian analysis. Royal Astronomical Society. Monthly Notices, 390(1), 39-48.
  • Martin, N., Ibata, R., Chapman, S., Irwin, M., Lewis, G. (2007). A Keck/DEIMOS spectroscopic survey of faint Galactic satellites: searching for the least massive dwarf galaxies. Royal Astronomical Society. Monthly Notices, 380(1), 281-300.
  • Kiss, L., Sznekely, P., Bedding, T., Bakos, G., Lewis, G. (2007). A wide-field kinematic survey for tidal tails around five globular clusters. The Astrophysical Journal: an international review of astronomy and astronomical physics, 659(2), L129-L132.
  • Mackey, A., Huxor, A., Ferguson, A., Tanvir, N., Irwin, M., Ibata, R., Bridges, T., Johnson, R., Lewis, G. (2007). ACS photometry of newly discovered globular clusters in the outer halo of M31. The Astrophysical Journal: an international review of astronomy and astronomical physics, 655(2), L85-L88.
  • Lewis, G., Francis, M., Barnes, L., James, J. (2007). Coordinate confusion in conformal cosmology. Royal Astronomical Society. Monthly Notices, 381(1), L50-L54. [More Information]
  • Francis, M., Barnes, L., James, J., Lewis, G. (2007). Expanding Space: the root of all evil? Astronomical Society of Australia. Publications (Print), 24(2), 95-102.
  • Lewis, G., Ibata, R., Chapman, S., McConnachie, A., Irwin, M., Tolstoy, E., Tanvir, N. (2007). Inside the whale: the structure and dynamics of the isolated Cetus dwarf spheroidal. Royal Astronomical Society. Monthly Notices, 375(4), 1364-1370.
  • Lewis, G., Kwan, J. (2007). No Way Back: Maximizing Survival Time Below the Schwarzschild Event Horizon. Astronomical Society of Australia. Publications (Print), 24(2), 46-52.
  • Francis, M., Lewis, G., Linder, E. (2007). Power spectra to 1 per cent accuracy between dynamical dark energy cosmologies. Royal Astronomical Society. Monthly Notices, 380(3), 1079-1086.
  • Faria, D., Johnson, R., Ferguson, A., Irwin, M., Ibata, R., Johnston, K., Lewis, G., Tanvir, N. (2007). Probing the nature of the G1 clump stellar overdensity in the outskirts of M31. The Astronomical Journal, 133(4), 1275-1286.
  • Hales, C., Lewis, G. (2007). Resolving the Structure at the Heart of BAL Quasars Through Microlensing Induced Polarisation Variability. Astronomical Society of Australia. Publications (Print), 24(i), 30-40.
  • Chapman, S., Penarrubia, J., Ibata, R., McConnachie, A., Martin, N., Irwin, M., Blain, A., Lewis, G., Letarte, B., Lo, K., et al (2007). Strangers in the night: Discovery of a dwarf spheroidal galaxy on its first local group infall. The Astrophysical Journal Letters (NO NOT USE), 662(2), L79-L82.
  • Conn, B., Lane, R., Lewis, G., Gil-Merino, R., Irwin, M., Ibata, R., Martin, N., Bellazzini, M., Sharp, R., Tuntsov, A., et al (2007). The AAT/WFI survey of the Monoceros Ring and Canis Major dwarf galaxy - I. From l = (193-276)degrees. Royal Astronomical Society. Monthly Notices, 376(3), 939-959.
  • Ibata, R., Martin, N., Irwin, M., Chapman, S., Ferguson, A., Lewis, G., McConnachie, A. (2007). The Haunted Halos of Andromeda and Triangulum: A Panorama of Galaxy Formation in Action. Science, 671, 1591-1623.
  • James, B., Lewis, G., Colless, M. (2007). Topology of large-scale structure in the 2dF Galaxy Redshift Survey. Royal Astronomical Society. Monthly Notices, 375(1), 128-136.
  • Chapman, S., Ibata, R., Lewis, G., Ferguson, A., Irwin, M., McConnachie, A., Tanvir, N. (2006). A kinematically selected, metal-poor stellar halo in the ourskirts of M31. The Astrophysical Journal: an international review of astronomy and astronomical physics, 653(1), 255-266.
  • Ibata, R., Chapman, S., Irwin, M., Lewis, G., Martin, N. (2006). A near-zero velocity dispersion stellar component in the Canes Venatici dwarf spheroidal galaxy. Royal Astronomical Society. Monthly Notices, 373, L70-L74. [More Information]
  • Martin, N., Irwin, M., Ibata, R., Conn, B., Lewis, G., Bellazzini, M., Chapman, S., Tanvir, N. (2006). A radial velocity survey of low Galactic latitude structures - III. The Monoceros Ring in front of the Carina and Andromeda galaxies. Royal Astronomical Society. Monthly Notices, 367(1), L69-L73. [More Information]
  • Mackey, A., Huxor, A., Ferguson, A., Tanvir, N., Irwin, M., Ibata, R., Bridges, T., Johnson, R., Lewis, G. (2006). ACS photometry of extended, luminous globular clusters in the outskirts of M31. The Astrophysical Journal: an international review of astronomy and astronomical physics, 653(1), L105-L108.
  • Balogh, M., Babul, A., Voit, G., McCarthy, I., Jones, L., Lewis, G., Ebeling, H. (2006). An analytic investigation of the scatter in the integrated X-ray properties of galaxy groups and clusters. Royal Astronomical Society. Monthly Notices, 366(2), 624-634.
  • Martin, N., Ibata, R., Irwin, M., Chapman, S., Lewis, G., Ferguson, A., Tanvir, N., McConnachie, A. (2006). Discovery and analysis of three faint dwarf galaxies and a globular cluster in the outer halo of the Andromeda galaxy. Royal Astronomical Society. Monthly Notices, 371, 1983-1991.
  • Lewis, G., Ibata, R. (2006). Gravitational microlensing of quasar broad-line regions: the influence of fractal structures. Royal Astronomical Society. Monthly Notices, 367(3), 1217-1221.
  • Gil-Merino, R., Gonzalez-Cadelo, J., Goicoechea, L., Shalyapin, V., Lewis, G. (2006). Is there a caustic crossing in the lensed quasar Q2237+0305 observational data record? Royal Astronomical Society. Monthly Notices, 371, 1478-1482.
  • Barnes, L., Francis, M., James, J., Lewis, G. (2006). Joining the Hubble flow: implications for expanding space. Monthly Notices of the Royal Astronomical Society. Letters (Online), 373, 382-390.
  • Tuntsov, A., Lewis, G. (2006). Microlensing in phase space - I. Continuous propagation of variability moments. Royal Astronomical Society. Monthly Notices, 370(1), 91-104.
  • Lewis, G., Tuntsov, A. (2006). Microlensing in phase space - II. Correlations analysis. Royal Astronomical Society. Monthly Notices, 370(1), 105-120.
  • Tuntsov, A., Lewis, G. (2006). On a systematic bias in surface brightness fluctuations based distances due to gravitational microlensing. Royal Astronomical Society. Monthly Notices, 371, 1259-1268.
  • Lewis, G., Gil-Merino, R. (2006). Quasar microlensing: When compact masses mimic smooth matter. The Astrophysical Journal: an international review of astronomy and astronomical physics, 645(2), 835-840.
  • Lewis, G., Gil-Merino, R. (2006). Seeing star formation regions with gravitational microlensing. The Astrophysical Journal: an international review of astronomy and astronomical physics, 643(1), 260-265.
  • Lewis, G., Brewer, B. (2006). Strong gravitational lens inversion: a bayesian approach. The Astrophysical Journal: an international review of astronomy and astronomical physics, 637(2), 608-619.
  • Lewis, G., Conn, B., Bellazzini, M., Ibata, R., Martin, N., Irwin, M. (2006). The core of the Canis Major galaxy as traced by red clump stars. Royal Astronomical Society. Monthly Notices, 366(3), 865-883.
  • Brewer, B., Lewis, G. (2006). The einstein ring 0047-2808 revisited: a bayesian inversion. The Astrophysical Journal: an international review of astronomy and astronomical physics, 651, 8-13.
  • Swinbank, A., Chapman, S., Smail, I., Lindner, C., Borys, C., Blain, A., Ivison, R., Lewis, G. (2006). The link between submillimetre galaxies and luminous ellipticals: near-infrared IFU spectroscopy of submillimetre galaxies. Royal Astronomical Society. Monthly Notices, 371(1), 465-476.
  • Lewis, G., McConnachie, A., Chapman, S., Ibata, R., Ferguson, A., Irwin, M., Tanvir, N., Martin, N. (2006). The stellar halo and outer disk of M33. The Astrophysical Journal: an international review of astronomy and astronomical physics, 647(1), L25-L28.
  • Chapman, S., Ibata, R., Lewis, G., Ferguson, A., Irwin, M., McConnachie, A., Tanvir, N. (2005). A Keck deimos kinematic study of Andromeda IX: Dark matter on the smallest galactic scales. The Astrophysical Journal: an international review of astronomy and astronomical physics, 632(2), L87-L90.
  • Irwin, M., Ferguson, A., Ibata, R., Lewis, G., Tanvir, N. (2005). A minor-axis surface brightness profile for M31. The Astrophysical Journal: an international review of astronomy and astronomical physics, 628(2), L105-L108.
  • Huxor, A., Tanvir, N., Irwin, M., Ibata, R., Collett, J., Ferguson, A., Bridges, T., Lewis, G. (2005). A new population of extended, luminous star clusters in the halo of M31. Royal Astronomical Society. Monthly Notices, 360(3), 1007-1012.
  • Martin, N., Ibata, R., Conn, B., Lewis, G., Bellazzini, M., Irwin, M. (2005). A radial velocity survey of low Galactic latitude structures - I. Kinematics of the Canis Major dwarf galaxy. Royal Astronomical Society. Monthly Notices, 362(3), 906-914.
  • Conn, B., Martin, N., Lewis, G., Ibata, R., Bellazzini, M., Irwin, M. (2005). A radial velocity survey of low Galactic latitude structures: II. The Monoceros Ring behind the Canis Major dwarf galaxy. Royal Astronomical Society. Monthly Notices, 364(1), L13-L17.
  • Martin, N., Ibata, R., Conn, B., Irwin, M., Lewis, G. (2005). Correcting the influence of an asymmetric line spread function in 2-degree field spectrograph data. Astronomical Society of Australia. Publications (Print), 22(3), 236-244.
  • McConnachie, A., Irwin, M., Ferguson, A., Ibata, R., Lewis, G., Tanvir, N. (2005). Distances and metallicities for 17 Local Group galaxies. Royal Astronomical Society. Monthly Notices, 356(3), 979-997.
  • Lewis, G. (2005). Foreword: Gravity Workshop 2004. Astronomical Society of Australia. Publications (Print), 22(3), 174-174.
  • Bailin, J., Kawata, D., Gibson, B., Steinmetz, M., Navarro, J., Brook, C., Gill, S., Ibata, R., Knebe, A., Lewis, G., et al (2005). Internal alignment of the halos of disk galaxies in cosmological hydrodynamic simulations. The Astrophysical Journal Letters (NO NOT USE), 627(1), L17-L20.
  • Gil-Merino, R., Lewis, G. (2005). Interpreting microlensing signal in QSO 2237+0305: Stars or planets? Astronomy and Astrophysics (A and A), 437(1), L15-L18.
  • Gil-Merino, R., Wambsganss, J., Goicoechea, L., Lewis, G. (2005). Limits on the transverse velocity of the lensing galaxy in Q2237+0305 from the lack of strong microlensing variability. Astronomy and Astrophysics (A and A), 432(1), 83-89.
  • Lewis, G., Chapman, S., Helou, G. (2005). Modeling the Evolution of Infrared Luminous Galaxies: The Influence of the Luminosity - Temperature Distribution. The Astrophysical Journal: an international review of astronomy and astronomical physics, 621(1), 32-40.
  • Ibata, R., Chapman, S., Ferguson, A., Lewis, G., Irwin, M., Tanvir, N. (2005). On the accretion origin of a vast extended stellar disk around the Andromeda galaxy. The Astrophysical Journal: an international review of astronomy and astronomical physics, 634(1), 287-313.
  • Brewer, B., Lewis, G. (2005). Probing subparsec structure in the Lyman alpha forest with gravitational microlensing. Royal Astronomical Society. Monthly Notices, 356(2), 703-710.
  • Burton, M., Lawrence, J., Ashley, M., Bailey, J., Blake, C., Bedding, T., Bland-Hawthorn, J., Bond, I., Glazebrook, K., Lewis, G., Tuthill, P., et al (2005). Science Programs for a 2-m Class Telescope at Dome C, Antarctica:PILOT, the Pathfinder for an International Large Optical Telescope. Astronomical Society of Australia. Publications (Print), 22(3), 199-235.
  • Barnes, L., Francis, M., Lewis, G., Linder, E. (2005). The Influence of Evolving Dark Energy on Cosmology. Astronomical Society of Australia. Publications (Print), 22(4), 315-325.
  • Conn, B., Lewis, G., Irwin, M., Ibata, R., Ferguson, A., Tanvir, N., Irwin, J. (2005). The Isaac Newton telescope wide field camera survey of the monoceros ring: Accretion origin or galactic anomaly? Royal Astronomical Society. Monthly Notices, 362(2), 475-488.
  • Wayth, R., Warren, S., Lewis, G., Hewett, P. (2005). The lens and source of the optical Einstein ring gravitational lens ER 0047-2808. Royal Astronomical Society. Monthly Notices, 360(4), 1333-1344.
  • Ferguson, A., Johnson, R., Faria, D., Irwin, M., Ibata, R., Johnston, K., Lewis, G., Tanvir, N. (2005). The stellar populations of the M31 halo substructure. The Astrophysical Journal: an international review of astronomy and astronomical physics, 622(2), L109-L112.
  • Lewis, G., Ibata, R. (2005). Tidal tails and the shape of the dark matter halo. Astronomical Society of Australia. Publications (Print), 22(3), 190-194.
  • Brewer, B., Lewis, G. (2005). When Darwin met Einstein: Gravitational lens inversion with genetic algorithms. Astronomical Society of Australia. Publications (Print), 22(2), 128-135.
  • Martin, N., Ibata, R., Bellazzini, M., Lewis, G., Irwin, M., Dehnen, W. (2004). A Dwarf Galaxy Remnant In Canis Major: The Fossil Of An In-Plane Accretion On To The Milky Way. Royal Astronomical Society. Monthly Notices, 348(1), 12-23.
  • Knebe, A., Gill, S., Gibson, B., Lewis, G., Ibata, R., Dopita, M. (2004). Anisotropy In The Distribution Of Satellite Galaxy Orbits. The Astrophysical Journal: an international review of astronomy and astronomical physics, 603(1), 7-11.
  • Tuntsov, A., Lewis, G., Ibata, R., Kneib, J. (2004). Detecting Compact Dark Matter Galaxy Clusters Via Gravitational Microlensing: A2218 And A370. Royal Astronomical Society. Monthly Notices, 353(3), 853-866.
  • Bellazzini, M., Ibata, R., Monaco, L., Martin, N., Irwin, M., Lewis, G. (2004). Detection of the Canis Major galaxy at (l;b) = (244 degrees; -8 degrees) and in the background of Galactic open clusters. Royal Astronomical Society. Monthly Notices, 354(4), 1263-1278.
  • McConnachie, A., Irwin, M., Ferguson, A., Ibata, R., Lewis, G., Tanvir, N. (2004). Determining The Location Of The Tip Of The Red Giant Branch In Old Stellar Populations: M33, Andromeda I And Ii. Royal Astronomical Society. Monthly Notices, 350(1), 243-252.
  • Chapman, S., Scott, D., Windhorst, R., Frayer, D., Borys, C., Lewis, G., Ivison, R. (2004). Further Multiwavelength Observations Of The SSA 22 Lyalpha-Emitting Blob. The Astrophysical Journal: an international review of astronomy and astronomical physics, 606(1), 85-91.
  • Lewis, G. (2004). Gravitational microlensing of fractal sources. Royal Astronomical Society. Monthly Notices, 355, 106-110.
  • Lewis, G., Ibata, R. (2004). Gravitational Microlensing Of Quasar Broad-Line Regions At Large Optical Depths. Royal Astronomical Society. Monthly Notices, 348(1), 24-33.
  • Gomez-Alvarez, P., Gradolph, E., Sanchez, S., Arribas, S., Wisotzki, L., Wambsganss, J., Munoz, J., Lewis, G. (2004). Integral Field Spectroscopy Of The Gravitational Lens He1104-1805. Astronomische Nachrichten, 325(2), 132-134. [More Information]
  • Tuntsov, A., Walker, M., Lewis, G. (2004). Measuring Transverse Velocities In Gravitationally Lensed Extragalactic Systems Using An Annual Parallax Effect. Royal Astronomical Society. Monthly Notices, 352(1), 125-130.
  • Schechter, P., Wambsganss, J., Lewis, G. (2004). Qualitative Aspects Of Quasar Microlensing With Two Mass Components: Magnification Patterns And Probability Distributions. The Astrophysical Journal: an international review of astronomy and astronomical physics, 613(1), 77-85.
  • Carilli, C., Walter, F., Bertoldi, F., Menten, K., Fan, X., Lewis, G., Strauss, M., Cox, P., Beelen, A., Omont, N., et al (2004). Radio Continuum Imaging Of Far-Infrared-Luminous QSOs At Z > 6. The Astronomical Journal, 128(3), 997-1001.
  • Ibata, R., Chapman, S., Ferguson, A., Irwin, M., Lewis, G., McConnachie, A. (2004). Taking Measure Of The Andromeda Halo: A Kinematic Analysis Of The Giant Stream Surrounding M31. Royal Astronomical Society. Monthly Notices, 351(1), 117-124.
  • Lewis, G., Ibata, R., Chapman, S., Ferguson, A., McConnachie, A., Irwin, M., Tanvir, N. (2004). The Andromeda stream. Astronomical Society of Australia. Publications (Print), 21(2), 203-206.
  • Lewis, G., Ibata, R., Irwin, M., Martin, N., Bellazzini, M., Conn, B. (2004). The Canis Major dwarf galaxy. Astronomical Society of Australia. Publications (Print), 21(4), 371-374.
  • Ellison, S., Ibata, R., Pettini, M., Lewis, G., Aracil, B., Petitjean, P., Srianand, R. (2004). The sizes and kinematic structure of absorption systems towards the lensed quasar APM08279 + 5255. Astronomy and Astrophysics (A and A), 414, 79-93.
  • McConnachie, A., Irwin, M., Lewis, G., Ibata, R., Chapman, S., Ferguson, A., Tanvir, N. (2004). The Tidal Trail Of Ngc 205? Royal Astronomical Society. Monthly Notices, 351(4), L94-L98.
  • Martin, N., Ibata, R., Conn, B., Lewis, G., Bellazzini, M., Irwin, M., McConnachie, A. (2004). Why the Canis Major overdensity is not due to the Warp: analysis of its radial profile and velocities. Royal Astronomical Society. Monthly Notices, 355(4), L33-L37.
  • Carilli, C., Lewis, G., Djorgovski, S., Mahabal, A., Cox, P., Bertoldi, F., Omont, A. (2003). A molecular einstein ring: Imaging a starburst disk surrounding a quasi-stellar object. Science, 300(5620), 773-775.
  • Zhao, H., Ibata, R., Lewis, G., Irwin, M. (2003). Kinematic outliers in the large magellanic cloud: constraints on star-star microlensing. Royal Astronomical Society. Monthly Notices, 339(3), 701-706.
  • Lewis, G., Ibata, R. (2003). Microlensing-induced absorption-line variability. Royal Astronomical Society. Monthly Notices, 340(2), 562-572.
  • Walker, M., Lewis, G. (2003). Nanolensing of gamma-ray bursts. The Astrophysical Journal: an international review of astronomy and astronomical physics, 589(2), 844-860.
  • Ibata, R., Irwin, M., Lewis, G., Ferguson, A., Tanvir, N. (2003). One ring to encompass them all: a giant stellar structure that surrounds the galaxy. Royal Astronomical Society. Monthly Notices, 340(3), L21-L27.
  • Lewis, G., Chapman, S., Kuncic, Z. (2003). Submillimeter observations of a sample of broad absorption line quasars. The Astrophysical Journal: an international review of astronomy and astronomical physics, 596, L35-L38.
  • Chapman, S., Helou, G., Lewis, G., Dale, D. (2003). The bivariate luminosity-color distribution of Iras galaxies and implications for the high-redshift universe. The Astrophysical Journal: an international review of astronomy and astronomical physics, 588(1), 186-198.
  • Chapman, S., Barger, A., Cowie, L., Scott, D., Borys, C., Capak, P., Fomalont, E., Lewis, G., Richards, E., Steffen, A., et al (2003). The properties of microjansky radio sources in the hubble deep field-north, SSA 13, and SSA 22 fields. The Astrophysical Journal: an international review of astronomy and astronomical physics, 585(1), 57-66.
  • McConnachie, A., Irwin, M., Ibata, R., Ferguson, A., Lewis, G., Tanvir, N. (2003). The three-dimensional structure of the giant stellar stream in Andromeda. Royal Astronomical Society. Monthly Notices, 343(4), 1335-1340.
  • Lewis, G., Irwin, M., Ibata, R., Gibson, B. (2002). AAT/WFI Observations of the Extragalactic HI Cloud HIPASS J1712-64. Astronomical Society of Australia. Publications (Print), 19, 257-259.
  • Lewis, G., Ibata, R. (2002). An investigation of gravitational lens determinations of H-0 in quintessence cosmologies. Royal Astronomical Society. Monthly Notices, 337(1), 26-33.
  • Ferguson, A., Irwin, M., Rodrigo, A., Lewis, G., Tanvir, N. (2002). Evidence for stellar substructure in the halo and outer disk of m31. The Astronomical Journal, 124, 1452-1463.
  • Willis, J., Hewett, P., Warren, S., Lewis, G. (2002). Luminous early-type field galaxies at z ∼ 0.4 – II. Star formation history and space density. Royal Astronomical Society. Monthly Notices, 337, 953-966.
  • Babul, A., Balogh, M., Lewis, G., POOLE, G. (2002). Physical implications of the X-ray properties of galaxy groups and clusters. Royal Astronomical Society. Monthly Notices, 330, 329-343.
  • Lewis, G., Carilli, C., Papadopoulos, P., Ivison, R. (2002). Resolved nuclear CO(1–0) emission in APM 0827915255: gravitational lensing by a naked cusp? Monthly Notices of the Royal Astronomical Society. Letters (Online), 330, L-15-L-18.
  • Lewis, G., Ibata, R., Ellison, S., Aracil, B., Petitjean, P., Pettini, M., Srianand, R. (2002). Spatially resolved STIS spectra of the gravitationally lensed broad absorption line quasar APM08279+5255: the nature of component C and evidence for microlensing. Monthly Notices of the Royal Astronomical Society. Letters (Online), 334, L7-L10.
  • Ibata, R., Lewis, G., Irwin, M., Cambresy, L. (2002). Substructure of the outer Galactic halo from the 2-Micron All-Sky Survey. Royal Astronomical Society. Monthly Notices, 332, 921-927.
  • Ibata, R., Lewis, G., Irwin, M., Quinn, T. (2002). Uncovering cold dark matter halo substructure with tidal streams. Royal Astronomical Society. Monthly Notices, 332, 915-920.
  • Chapman, S., Lewis, G., Scott, D., Borys, C., Richards, E. (2002). Understanding the nature of optically faint radio sources and their connection to the submillimeter population. The Astrophysical Journal: an international review of astronomy and astronomical physics, 570, 557-572.

Conferences

  • Manos, S., Lewis, G. (2006). A Combinatorial Genetic Algorithm for the Configuration of the 2dF/AAOmega Spectrograph at the Anglo-Australian Observatory. GECCO 2006: Genetic and Evolutionary Computation Conference, New York, New York: Association for Computing Machinery (ACM).

2014

  • Diakogiannis, F., Lewis, G., Ibata, R. (2014). Dynamical modelling of NGC 6809: Selecting the best model using bayesian inference. Monthly Notices of the Royal Astronomical Society, 437(4), 3172-3182-3172-3182. [More Information]
  • Carlesi, E., Knebe, A., Lewis, G., Wales, S., Yepes, G. (2014). Hydrodynamical simulations of coupled and uncoupled quintessence models-I. Halo properties and the cosmic web. Royal Astronomical Society. Monthly Notices, 439(3), 2943-2957-2943-2957. [More Information]
  • Carlesi, E., Knebe, A., Lewis, G., Yepes, G. (2014). Hydrodynamical simulations of coupled and uncoupled quintessence models-II. galaxy clusters. Royal Astronomical Society. Monthly Notices, 439(3), 2958-2969-2958-2969. [More Information]
  • Bate, N., Conn, A., McMonigal, B., Lewis, G., Martin, N., McConnachie, A., Veljanoski, J., Mackey, A., Ferguson, A., Ibata, R., et al (2014). Major substructure in the M31 outer halo: The south-west cloud. Monthly Notices of the Royal Astronomical Society, 437(4), 3362-3372-3362-3372. [More Information]
  • Belokurov, V., Koposov, S., Evans, N., Penarrubia, J., Irwin, M., Smith, M., Lewis, G., Gieles, M., Wilkinson, M., Gilmore, G., et al (2014). Precession of the sagittarius stream. Royal Astronomical Society. Monthly Notices, 437(1), 116-131-116-131. [More Information]
  • Ibata, R., Lewis, G., McConnachie, A., Martin, N., Irwin, M., Ferguson, A., Babul, A., Bernard, E., Chapman, S., Collins, M., et al (2014). The large-scale structure of the halo of the Andromeda galaxy. I. Global stellar density, morphology and metallicity properties. The Astrophysical Journal: an international review of astronomy and astronomical physics, 780(2), Article number 128. [More Information]
  • Collins, M., Chapman, S., Rich, R., Ibata, R., Martin, N., Irwin, M., Bate, N., Lewis, G., Penarrubia, J., Arimoto, N., et al (2014). The masses of local group dwarf spheroidal galaxies: The death of the universal mass profile. The Astrophysical Journal: an international review of astronomy and astronomical physics, 783(1), Article number 7. [More Information]

2013

  • Collins, M., Chapman, S., Rich, R., Ibata, R., Martin, N., Irwin, M., Bate, N., Lewis, G., Penarrubia, J., Arimoto, N., et al (2013). A kinematic study of the andromeda dwarf spheroidal system. The Astrophysical Journal: an international review of astronomy and astronomical physics, 768(2), 1-36. [More Information]
  • Mackey, A., Huxor, A., Martin, N., Ferguson, A., Dotter, A., McConnachie, A., Ibata, R., Irwin, M., Lewis, G., Sakari, C., et al (2013). A peculiar faint satellite in the remote outer halo of M31. The Astrophysical Journal Letters, 770(2), 1-3. [More Information]
  • Ibata, R., Lewis, G., Conn, A., Irwin, M., McConnachie, A., Chapman, S., Collins, M., Fardal, M., Ferguson, A., Ibata, N., et al (2013). A vast, thin plane of corotating dwarf galaxies orbiting the Andromeda galaxy. Nature, 493(7430), 62-65. [More Information]
  • Freeman, K., Ness, M., Wylie-De Boer, E., Athanassoula, E., Bland-Hawthorn, J., Asplund, M., Lewis, G., Yong, D., Lane, R., Kiss, L., et al (2013). ARGOS - II. The Galactic bulge survey. Monthly Notices of the Royal Astronomical Society, 428(4), 3660-3670. [More Information]
  • Ness, M., Freeman, K., Athanassoula, E., Wylie-De Boer, E., Bland-Hawthorn, J., Asplund, M., Lewis, G., Yong, D., Lane, R., Kiss, L. (2013). ARGOS - III. Stellar populations in the Galactic bulge of the Milky Way. Monthly Notices of the Royal Astronomical Society, 430, 836-857. [More Information]
  • Ness, M., Freeman, K., Athanassoula, E., Wylie-De Boer, E., Bland-Hawthorn, J., Asplund, M., Lewis, G., Yong, D., Lane, R., Kiss, L., et al (2013). ARGOS - IV. The kinematics of the Milky Way bulge. Royal Astronomical Society. Monthly Notices, 432(3), 2092-2103. [More Information]
  • Ibata, R., Lewis, G., Martin, N., Bellazzini, M., Correnti, M. (2013). Does the Sagittarius Stream Constrain the Milky Way Halo to be Triaxial? The Astrophysical Journal Letters, 765(1), 1-5. [More Information]
  • Chapman, S., Widrow, L., Collins, M., Dubinski, J., Ibata, R., Rich, R., Ferguson, A., Irwin, M., Lewis, G., Martin, N., et al (2013). Dynamics in the satellite system of Triangulum: is And XXII a dwarf satellite of M33? Monthly Notices of the Royal Astronomical Society, 430(1), 37-49. [More Information]
  • Fardal, M., Weinberg, M., Babul, A., Irwin, M., Guhathakurta, P., Gilbert, K., Ferguson, A., Ibata, R., Lewis, G., Tanvir, N., et al (2013). Inferring the Andromeda Galaxy's mass from its giant southern stream with Bayesian simulation sampling. Royal Astronomical Society. Monthly Notices, 434(4), 2779-2802. [More Information]
  • Veljanoski, J., Ferguson, A., Mackey, A., Huxor, A., Irwin, M., Cote, P., Tanvir, N., Bernard, E., Chapman, S., Ibata, R., Lewis, G., et al (2013). Kinematics of outer halo globular clusters in M31. The Astrophysical Journal Letters, 768(2), 1-5. [More Information]
  • Lewis, G. (2013). Matter matters: Unphysical properties of the Rh = ct universe. Monthly Notices of the Royal Astronomical Society, 432(3), 2324-2330. [More Information]
  • Kafle, P., Sharma, S., Lewis, G., Bland-Hawthorn, J. (2013). Metallicity bias in the kinematics of the Milky Way Stellar Halo. Monthly Notices of the Royal Astronomical Society, 430(4), 2973-2978. [More Information]
  • Veljanoski, J., Ferguson, A., Huxor, A., Mackey, A., Fishlock, C., Irwin, M., Tanvir, N., Chapman, S., Ibata, R., Lewis, G., et al (2013). Newly discovered globular clusters in NGC 147 and NGC 185 from PAndAS. Royal Astronomical Society. Monthly Notices, 435(4), 3654-3666. [More Information]
  • Lewis, G., Braun, R., McConnachie, A., Irwin, M., Ibata, R., Chapman, S., Ferguson, A., Martin, N., Fardal, M., Dubinski, J., et al (2013). PAndAS in the mist: The stellar and gaseous mass within the halos of M31 and M33. The Astrophysical Journal: an international review of astronomy and astronomical physics, 763(1), 1-10. [More Information]
  • Lewis, G. (2013). Phantom energy and the Cosmic Horizon: Rh is still not a horizon!. Monthly Notices of the Royal Astronomical Society, 431(1), L25-L27. [More Information]
  • Trowland, H., Lewis, G., Bland-Hawthorn, J. (2013). The cosmic history of the spin of dark matter halos within the large-scale structure. The Astrophysical Journal: an international review of astronomy and astronomical physics, 762, 1-12. [More Information]
  • Martin, N., Ibata, R., McConnachie, A., Mackey, A., Ferguson, A., Irwin, M., Lewis, G., Fardal, M. (2013). The PAndAS view of the andromeda satellite system. I. A Bayesian search for dwarf galaxies using spatial and color-magnitude information. The Astrophysical Journal: an international review of astronomy and astronomical physics, 776(2), 1-18. [More Information]
  • Conn, A., Lewis, G., Ibata, R., Parker, Q., Zucker, D., McConnachie, A., Martin, N., Valls-Gabaud, D., Tanvir, N., Irwin, M., et al (2013). The three-dimensional structure of the m31 satellite system; Strong evidence for an inhomogeneous distribution of satellites. The Astrophysical Journal: an international review of astronomy and astronomical physics, 766(2), 1-16. [More Information]
  • Cockcroft, R., McConnachie, A., Harris, W., Ibata, R., Irwin, M., Ferguson, A., Fardal, M., Babul, A., Chapman, S., Lewis, G., et al (2013). Unearthing foundations of a cosmic cathedral: searching the stars for M33’s halo. Monthly Notices of the Royal Astronomical Society, 428(2), 1248-1262. [More Information]
  • Mackey, A., Huxor, A., Ferguson, A., Irwin, M., Veljanoski, J., McConnachie, A., Ibata, R., Lewis, G., Tanvir, N. (2013). Young accreted globular clusters in the outer halo of M31. Monthly Notices of the Royal Astronomical Society, 429(1), 281-293. [More Information]

2012

  • Conn, A., Ibata, R., Lewis, G., Parker, Q., Zucker, D., Martin, N., McConnachie, A., Irwin, M., Tanvir, N., Fardal, M., et al (2012). A Bayesian Approach to Locating the Red Giant Branch Tip Magnitude. II. Distances to the Satellites of M31. The Astrophysical Journal: an international review of astronomy and astronomical physics, 758(1), 1-19. [More Information]
  • McMonigal, B., Lewis, G., O'Byrne, P. (2012). Alcubierre warp drive: On the matter of matter. Physical Review D (Particles, Fields, Gravitation and Cosmology), 85(6), 1-11. [More Information]
  • Fogarty, L., Bland-Hawthorn, J., Croom, S., Green, A., Bryant, J., Lawrence, J., Richards, S., Allen, J., Bauer, A., Birchall, M., Lewis, G., Trowland, H., Leon-Saval, S., Min, S., Trinh, C., et al (2012). First science with SAMI: A serendipitously discovered galactic wind in ESO 185-G031. The Astrophysical Journal: an international review of astronomy and astronomical physics, 761(2), 1-12. [More Information]
  • Killedar, M., Lasky, P., Lewis, G., Fluke, C. (2012). Gravitational lensing with three-dimensional ray tracing. Royal Astronomical Society. Monthly Notices, 420(1), 155-169. [More Information]
  • Lewis, G., van Oirschot, P. (2012). How does the Hubble sphere limit our view of the universe? Monthly Notices of the Royal Astronomical Society. Letters (Online), 423(1), L26-L29. [More Information]
  • Kafle, P., Sharma, S., Lewis, G., Bland-Hawthorn, J. (2012). Kinematics of the Stellar Halo and the Mass Distribution of the Milky Way Using Blue Horizontal Branch Stars. The Astrophysical Journal: an international review of astronomy and astronomical physics, 761(2), 1-17. [More Information]
  • Kwan, J., Lewis, G., Linder, E. (2012). Mapping growth and gravity with robust redshift space distortions. The Astrophysical Journal: an international review of astronomy and astronomical physics, 748(2), 1-12. [More Information]
  • Garsden, H., Bate, N., Lewis, G. (2012). Probing planetary mass dark matter in galaxies: Gravitational nanolensing of multiply imaged quasars. Monthly Notices of the Royal Astronomical Society, 420(4), 3574-3586. [More Information]
  • Conn, B., Noel, N., Rix, H., Lane, R., Lewis, G., Irwin, M., Martin, N., Ibata, R., Dolphin, A., Chapman, S. (2012). Slicing the monoceros overdensity with suprime-cam. The Astrophysical Journal: an international review of astronomy and astronomical physics, 754(2), 1-15. [More Information]
  • McCavana, T., Micic, M., Lewis, G., Sinha, M., Sharma, S., Holley-Bocklemann, K., Bland-Hawthorn, J. (2012). The lives of high-redshift mergers. Royal Astronomical Society. Monthly Notices, 424(1), 361-371. [More Information]
  • Ness, M., Freeman, K., Athanassoula, E., Wylie-De Boer, E., Bland-Hawthorn, J., Lewis, G., Yong, D., Asplund, M., Lane, R., Kiss, L., et al (2012). The origin of the split red clump in the galactic bulge of the milky way. The Astrophysical Journal: an international review of astronomy and astronomical physics, 756(1), 1-8. [More Information]
  • Davidge, T., McConnachie, A., Fardal, M., Fliri, J., Valls-Gabaud, D., Chapman, S., Lewis, G., Rich, R. (2012). The recent stellar archeology of M31 - The nearest red disk galaxy. The Astrophysical Journal: an international review of astronomy and astronomical physics, 751(1), 1-26. [More Information]
  • Koposov, S., Belokurov, V., Evans, N., Gilmore, G., Gieles, M., Irwin, M., Lewis, G., Neiderste-Ostholt, M., Penarrubia, J., Smith, M., et al (2012). The sagittarius streams in the southern galactic hemisphere. The Astrophysical Journal: an international review of astronomy and astronomical physics, 750(1), 1-9. [More Information]
  • Bernard, E., Ferguson, A., Barker, M., Hidalgo, S., Ibata, R., Irwin, M., Lewis, G., McConnachie, A., Monelli, M., Chapman, S. (2012). The star formation history and dust content in the far outer disc of M31. Royal Astronomical Society. Monthly Notices, 420(3), 2625-2643. [More Information]
  • Tanvir, N., Mackey, A., Ferguson, A., Huxor, A., Read, J., Lewis, G., Irwin, J., Chapman, S., Ibata, R., Wilkinson, M., et al (2012). The structure of star clusters in the outer halo of M31. Royal Astronomical Society. Monthly Notices, 422(1), 162-184. [More Information]
  • Croom, S., Lawrence, J., Bland-Hawthorn, J., Bryant, J., Fogarty, L., Richards, S., Goodwin, M., Farrell, T., Miziarski, S., Heald, R., Leon-Saval, S., Lewis, G., Min, S., Trinh, C., Trowland, H., et al (2012). The Sydney-AAO Multi-object Integral field spectrograph. Royal Astronomical Society. Monthly Notices, 421(1), 872-893. [More Information]
  • Callingham, J., Farrell, S., Gaensler, B., Lewis, G., Middleton, M. (2012). The x-ray transient 2XMMi J003833.3+402133: A candidate magnetar at high galactic latitude. The Astrophysical Journal: an international review of astronomy and astronomical physics, 757(2), 1-9. [More Information]

2011

  • Conn, A., Lewis, G., Ibata, R., Parker, Q., Zucker, D., McConnachie, A., Martin, N., Irwin, M., Tanvir, N., Fardal, M., et al (2011). A Bayesian Approach to Locating the Red Giant Branch Tip Magnitude. I. The Astrophysical Journal: an international review of astronomy and astronomical physics, 740(69), 1-11. [More Information]
  • Conn, B., Pasquali, A., Pompei, E., Lane, R., Chene, A., Smith, R., Lewis, G. (2011). A new collisional ring galaxy at z = 0.111: Auriga's Wheel. The Astrophysical Journal: an international review of astronomy and astronomical physics, 741(2), 80-1-80-6. [More Information]
  • Lane, R., Kiss, L., Lewis, G., Ibata, R., Siebert, A., Bedding, T., Székely, G., Szabo, G. (2011). AAOmega spectroscopy of 29 351 stars in fields centered on ten Galactic globular clusters. Astronomy and Astrophysics (A and A), 530, A31-1-A31-6. [More Information]
  • Carlberg, R., Richer, H., McConnachie, A., Irwin, M., Ibata, R., Dotter, A., Chapman, S., Fardal, M., Ferguson, A., Lewis, G., et al (2011). Density variations in the NW Stars Stream of M31∗. The Astrophysical Journal: an international review of astronomy and astronomical physics, 731(2), Article 124 - 1-Article 124 - 10. [More Information]
  • Huxor, A., Ferguson, A., Tanvir, N., Irwin, M., Mackey, A., Ibata, R., Bridges, T., Chapman, S., Lewis, G. (2011). Exploring the properties of the M31 halo globular cluster system. Royal Astronomical Society. Monthly Notices, 414(1), 770-780. [More Information]
  • Kedziora, D., Garsden, H., Lewis, G. (2011). Gravitational microlensing as a probe of the electron-scattering region in Q2237+0305. Royal Astronomical Society. Monthly Notices, 415(2), 1409-1418. [More Information]
  • Garsden, H., Bate, N., Lewis, G. (2011). Gravitational microlensing of a reverberating quasar broad-line region - I. Method and qualitative results. Royal Astronomical Society. Monthly Notices, 418(2), 1012-1027. [More Information]
  • Brewer, B., Lewis, G., Belokurov, V., Irwin, M., Bridges, T., Evans, N. (2011). Modelling of the Complex CASSOWARY/SLUGS Gravitational Lenses. Royal Astronomical Society. Monthly Notices, 412(4), 1-9. [More Information]
  • Penarrubia, J., Zucker, D., Irwin, M., Hyde, E., Lane, R., Lewis, G., Gilmore, G., Evans, N., Belokurov, V. (2011). No Evidence for Internal Rotation in the Remnant Core of the Sagittarius Dwarf. The Astrophysical Journal Letters, 727, L2-1-L2-5. [More Information]
  • Richardson, J., Irwin, M., McConnachie, A., Martin, N., Dotter, A., Ferguson, A., Ibata, R., Chapman, S., Lewis, G., Tanvir, N., et al (2011). PAndAS' progeny: Extending the M31 dwarf galaxy CABAL. The Astrophysical Journal: an international review of astronomy and astronomical physics, 732(2), 76-1-76-14. [More Information]
  • Varghese, A., Ibata, R., Lewis, G. (2011). Stellar streams as probes of dark halo mass and morphology: a Bayesian reconstruction. Royal Astronomical Society. Monthly Notices, 417, 198-215.
  • Collins, M., Chapman, S., Ibata, R., Irwin, J., Rich, R., Ferguson, A., Lewis, G., Tanvir, N., Koch, A. (2011). The kinematic identification of a thick stellar disc in M31. Royal Astronomical Society. Monthly Notices, 413(3), 1548-1568. [More Information]
  • Cockcroft, R., Harris, W., Ferguson, A., Huxor, A., Ibata, R., Irwin, M., McConnachie, A., Woodley, K., Chapman, S., Lewis, G., et al (2011). The M33 globular cluster system with PAndAS data: The last outer halo cluster? The Astrophysical Journal: an international review of astronomy and astronomical physics, 730(2), 1-12. [More Information]
  • Collins, M., Chapman, S., Rich, R., Irwin, M., Penarrubia, J., Ibata, R., Arimoto, N., Brooks, A., Ferguson, A., Lewis, G., et al (2011). The scatter about the 'Universal' dwarf spheroidal mass profile: A kinematic study of the M31 satellites And V and And VI. Royal Astronomical Society. Monthly Notices, 417(2), 1170-1182. [More Information]
  • Barker, M., Ferguson, A., Cole, A., Ibata, R., Irwin, M., Lewis, G., Smecker-Hane, T., Tanvir, N. (2011). The star formation history in the far outer disc of M33. Royal Astronomical Society. Monthly Notices, 410(1), 504-516. [More Information]
  • Garsden, H., Lewis, G., Harvey-Smith, L. (2011). The water maser in MG 0414+0534: The influence of gravitational microlensing. Royal Astronomical Society. Monthly Notices, 413(3), 1537-1547. [More Information]

2010

  • Collins, M., Chapman, S., Irwin, M., Martin, N., Ibata, R., Zucker, D., Blain, A., Ferguson, A., Lewis, G., McConnachie, A., et al (2010). A Keck/DEIMOS spectroscopic survey of the faint M31 satellites And IX, And XI, And XII and And XIII. Royal Astronomical Society. Monthly Notices, 407(4), 2411-2433.
  • Lane, R., Brewer, B., Kiss, L., Lewis, G., Ibata, R., Siebert, A., Bedding, T., Szekely, P., Szabo, G. (2010). AAOMEGA observations of 47 tucanae: Evidence for a past merger? The Astrophysical Journal Letters, 711(2), L122-L126.
  • Bate, N., Fluke, C., Barsdell, B., Garsden, H., Lewis, G. (2010). Computational advances in gravitational microlensing: A comparison of CPU, GPU, and parallel, large data codes. New Astronomy, 15(8), 726-734.
  • Mackey, A., Ferguson, A., Irwin, M., Martin, N., Huxor, A., Tanvir, N., Chapman, S., Ibata, R., Lewis, G., McConnachie, A. (2010). Deep Gemini/GMOS imaging of an extremely isolated globular cluster in the Local Group. Royal Astronomical Society. Monthly Notices, 401(1), 533-546. [More Information]
  • Mackey, A., Huxor, A., Ferguson, A., Irwin, M., Tanvir, N., McConnachie, A., Ibata, R., Chapman, S., Lewis, G. (2010). Evidence for an accretion origin for the outer halo globular cluster system of M31. The Astrophysical Journal Letters, 717(1), L11-L16.
  • Garsden, H., Lewis, G. (2010). Gravitational microlensing: A parallel, large-data implementation. New Astronomy, 15(2), 181-188.
  • Lane, R., Kiss, L., Lewis, G., Ibata, R., Siebert, A., Bedding, T., Szekely, P., Balog, Z., Szabo, G. (2010). Halo globular clusters observed with AAOmega: Dark matter content, metallicity and tidal heating. Royal Astronomical Society. Monthly Notices, 406(4), 2732-2742.
  • Killedar, M., Lewis, G. (2010). Lyα absorbers in motion: consequences of gravitational lensing for the cosmological redshift drift experiment. Royal Astronomical Society. Monthly Notices, 402, 650-656.
  • Lane, R., Kiss, L., Lewis, G., Ibata, R., Siebert, A., Bedding, T., Szekely, P. (2010). Testing Newtonian gravity with AAOmega: mass-to-light profiles and metallicity calibrations from 47 Tuc and M55. Royal Astronomical Society. Monthly Notices, 401(4), 2521-2530. [More Information]
  • Kwan, J., Lewis, G., James, B. (2010). The Adventures of the Rocketeer: Accelerated Motion Under the Influence of Expanding Space. Astronomical Society of Australia. Publications (Print), 27(1), 15-22.
  • McConnachie, A., Ferguson, A., Irwin, M., Dubinski, J., Widrow, L., Dotter, A., Ibata, R., Lewis, G. (2010). The Photometric Properties of a Vast Stellar Substructure in the Outskirts of M33. The Astrophysical Journal: an international review of astronomy and astronomical physics, 723(2), 1038-1052.
  • van Oirschot, P., Kwan, J., Lewis, G. (2010). Through the looking glass: why the 'cosmic horizon' is not a horizon. Royal Astronomical Society. Monthly Notices, 404(4), 1633-1638.

2009

  • Letarte, B., Chapman, S., Collins, M., Ibata, R., Irwin, M., Ferguson, A., Lewis, G., Martin, N., McConnachie, A., Tanvir, N. (2009). A Keck/DEIMOS spectroscopic survey of the faint M31 satellites And XV and And XVI. Royal Astronomical Society. Monthly Notices, 400(3), 1472-1478.
  • Collins, M., Chapman, S., Irwin, M., Ibata, R., Martin, N., Ferguson, A., Huxor, A., Lewis, G., Mackey, A., McConnachie, A., et al (2009). A spectroscopic survey of EC4, an extended cluster in Andromeda's halo. Royal Astronomical Society. Monthly Notices, 396(3), 1619-1628.
  • Richardson, J., Ferguson, A., Mackey, A., Irwin, M., Chapman, S., Huxor, A., Ibata, R., Lewis, G., Tanvir, N. (2009). An HST/ACS view of the inhomogenous outer halo of M31. Royal Astronomical Society. Monthly Notices, 396(4), 1842-1850.
  • Francis, M., Lewis, G., Linder, E. (2009). Can early dark energy be detected in non-linear structure? Royal Astronomical Society. Monthly Notices, 394(2), 605-614.
  • Ibata, R., Bellazzini, M., Chapman, S., Dalessandro, E., Ferraro, F., Irwin, M., Lanzoni, B., Lewis, G., Mackey, A., Miocchi, P., et al (2009). Density and Kinematic Cusps in M54 at the Heart of the Sagittarius Dwarf Galaxy: Evidence for A 104 M Black Hole? The Astrophysical Journal: an international review of astronomy and astronomical physics, 699(2), L169-L173.
  • Kwan, J., Francis, M., Lewis, G. (2009). Fractal Bubble cosmology: a concordant cosmological model? Royal Astronomical Society. Monthly Notices, 399, L6-L10. [More Information]
  • Francis, M., Lewis, G., Linder, E. (2009). Halo mass functions in early dark energy cosmologies. Royal Astronomical Society. Monthly Notices, 393(1), L31-L35. [More Information]
  • Riechers, D., Walter, F., Carilli, C., Lewis, G. (2009). Imaging The Molecular Gas in a z = 3.9 Quasar Host Galaxy at 0."3 Resolution: A Central, Sub-Kiloparsec Scale Star Formation Reservoir in APM 08279+5255. The Astrophysical Journal: an international review of astronomy and astronomical physics, 690(1), 463-485.
  • Martin, N., McConnachie, A., Irwin, M., Widrow, L., Ferguson, A., Ibata, R., Dubinski, J., Babul, A., Chapman, S., Fardal, M., Lewis, G. (2009). PAndAS' CUBS: Discovery of Two New Dwarf Galaxies in the Surroundings of the Andromeda and Triangulum Galaxies. The Astrophysical Journal: an international review of astronomy and astronomical physics, 705(1), 758-765.
  • Lane, R., Kiss, L., Lewis, G., Ibata, R., Siebert, A., Bedding, T., Szekely, P. (2009). Testing Newtonian gravity with AAOmega: mass-to-light profiles of four globular clusters. Royal Astronomical Society. Monthly Notices, 400(2), 917-923. [More Information]
  • Huxor, A., Ferguson, A., Barker, M., Tanvir, N., Irwin, M., Chapman, S., Ibata, R., Lewis, G. (2009). The Discovery of Remote Globular Clusters in M33. The Astrophysical Journal: an international review of astronomy and astronomical physics, 698(2), L77-L81.
  • McConnachie, A., Irwin, M., Ibata, R., Dubinski, J., Widrow, L., Martin, N., Cote, P., Dotter, A., Navarro, J., Ferguson, A., Lewis, G. (2009). The remnants of galaxy formation from a panoramic survey of the region around M31. Nature, 461(7260), 66-69.
  • James, J., Colless, M., Lewis, G., Peacock, J. (2009). Topology of non-linear structure in the 2dF Galaxy Redshift Survey. Royal Astronomical Society. Monthly Notices, 394(1), 454-466. [More Information]

2008

  • Riechers, D., Walter, F., Brewer, B., Carilli, C., Lewis, G., Bertoldi, F., Cox, P. (2008). A MOLECULAR EINSTEIN RING AT z=4.12: IMAGING THE DYNAMICS OF A QUASAR HOST GALAXY THROUGH A COSMIC LENS. The Astrophysical Journal: an international review of astronomy and astronomical physics, 686(2), 851-858.
  • McConnachie, A., Huxor, A., Martin, N., Irwin, M., Chapman, S., Fahlman, G., Ferguson, A., Ibata, R., Lewis, G., Richer, H., et al (2008). A Trio of New Local Group Galaxies with Extreme Properties. The Astrophysical Journal: an international review of astronomy and astronomical physics, 688(2), 1009-1020.
  • Cioni, M., Irwin, M., Ferguson, A., McConnachie, A., Conn, B., Huxor, A., Ibata, R., Lewis, G., Tanvir, N. (2008). AGB stars as tracers of metallicity and mean age across M 33. Astronomy and Astrophysics (A and A), 487(1), 131-146.
  • Irwin, M., Ferguson, A., Huxor, A., Tanvir, N., Ibata, R., Lewis, G. (2008). Andromeda XVII: A new low-luminosity satellite of M31. The Astrophysical Journal Letters (NO NOT USE), 676(1), L17-L20.
  • Lewis, G., Francis, M., Barnes, L., Kwan, J., James, J. (2008). Cosmological radar ranging in an expanding universe. Royal Astronomical Society. Monthly Notices, 388(3), 960-964.
  • Huxor, A., Tanvir, N., Ferguson, A., Irwin, M., Ibata, R., Bridges, T., Lewis, G. (2008). Globular clusters in the outer halo of M31: the survey. Royal Astronomical Society. Monthly Notices, 385(4), 1989-1997.
  • Conn, B., Lane, R., Lewis, G., Irwin, M., Ibata, R., Martin, N., Bellazzini, M., Tuntsov, A. (2008). The Anglo-Australian Telescope/Wide Field Imager survey of the Monoceros Ring and Canis Major dwarf galaxy - II. From l = (280-025)degrees. Royal Astronomical Society. Monthly Notices, 390(4), 1388-1398.
  • Ibata, R., Lewis, G. (2008). The Cosmic Web in Our Own Backyard. Science, 319, 50-52.
  • Chapman, S., Ibata, R., Irwin, M., Koch, A., Letarte, B., Martin, N., Collins, M., Lewis, G., McConnachie, A., Penarrubia, J., et al (2008). The kinematic footprints of five stellar streams in Andromeda's halo. Royal Astronomical Society. Monthly Notices, 390(4), 1437-1452.
  • Richardson, J., Ferguson, A., Johnson, R., Irwin, M., Tanvir, N., Faria, D., Ibata, R., Johnston, K., Lewis, G., McConnachie, A., et al (2008). The nature and origin of substructure in the outskirts of M31. I. Surveying the stellar content with the Hubble Space Telescope Advanced Camera for Surveys. The Astronomical Journal, 135(6), 1998-2012.
  • Bellazzini, M., Ibata, R., Chapman, S., Mackey, A., Monaco, L., Irwin, M., Martin, N., Lewis, G., Dalessandro, E. (2008). The nucleus of the sagittarius dsph galaxy and m54: a window on the process of galaxy nucleation. The Astronomical Journal, 136, 1147-1170.
  • Knebe, A., Yahagi, H., Kase, H., Lewis, G., Gibson, B. (2008). The radial alignment of dark matter subhaloes: from simulations to observations. Royal Astronomical Society. Monthly Notices, 388(1), L34-L38. [More Information]
  • Brewer, B., Lewis, G. (2008). Unlensing HST observations of the Einstein ring 1RXS J1131-1231: a Bayesian analysis. Royal Astronomical Society. Monthly Notices, 390(1), 39-48.

2007

  • Martin, N., Ibata, R., Chapman, S., Irwin, M., Lewis, G. (2007). A Keck/DEIMOS spectroscopic survey of faint Galactic satellites: searching for the least massive dwarf galaxies. Royal Astronomical Society. Monthly Notices, 380(1), 281-300.
  • Kiss, L., Sznekely, P., Bedding, T., Bakos, G., Lewis, G. (2007). A wide-field kinematic survey for tidal tails around five globular clusters. The Astrophysical Journal: an international review of astronomy and astronomical physics, 659(2), L129-L132.
  • Mackey, A., Huxor, A., Ferguson, A., Tanvir, N., Irwin, M., Ibata, R., Bridges, T., Johnson, R., Lewis, G. (2007). ACS photometry of newly discovered globular clusters in the outer halo of M31. The Astrophysical Journal: an international review of astronomy and astronomical physics, 655(2), L85-L88.
  • Lewis, G., Francis, M., Barnes, L., James, J. (2007). Coordinate confusion in conformal cosmology. Royal Astronomical Society. Monthly Notices, 381(1), L50-L54. [More Information]
  • Francis, M., Barnes, L., James, J., Lewis, G. (2007). Expanding Space: the root of all evil? Astronomical Society of Australia. Publications (Print), 24(2), 95-102.
  • Lewis, G., Ibata, R., Chapman, S., McConnachie, A., Irwin, M., Tolstoy, E., Tanvir, N. (2007). Inside the whale: the structure and dynamics of the isolated Cetus dwarf spheroidal. Royal Astronomical Society. Monthly Notices, 375(4), 1364-1370.
  • Lewis, G., Kwan, J. (2007). No Way Back: Maximizing Survival Time Below the Schwarzschild Event Horizon. Astronomical Society of Australia. Publications (Print), 24(2), 46-52.
  • Francis, M., Lewis, G., Linder, E. (2007). Power spectra to 1 per cent accuracy between dynamical dark energy cosmologies. Royal Astronomical Society. Monthly Notices, 380(3), 1079-1086.
  • Faria, D., Johnson, R., Ferguson, A., Irwin, M., Ibata, R., Johnston, K., Lewis, G., Tanvir, N. (2007). Probing the nature of the G1 clump stellar overdensity in the outskirts of M31. The Astronomical Journal, 133(4), 1275-1286.
  • Hales, C., Lewis, G. (2007). Resolving the Structure at the Heart of BAL Quasars Through Microlensing Induced Polarisation Variability. Astronomical Society of Australia. Publications (Print), 24(i), 30-40.
  • Chapman, S., Penarrubia, J., Ibata, R., McConnachie, A., Martin, N., Irwin, M., Blain, A., Lewis, G., Letarte, B., Lo, K., et al (2007). Strangers in the night: Discovery of a dwarf spheroidal galaxy on its first local group infall. The Astrophysical Journal Letters (NO NOT USE), 662(2), L79-L82.
  • Conn, B., Lane, R., Lewis, G., Gil-Merino, R., Irwin, M., Ibata, R., Martin, N., Bellazzini, M., Sharp, R., Tuntsov, A., et al (2007). The AAT/WFI survey of the Monoceros Ring and Canis Major dwarf galaxy - I. From l = (193-276)degrees. Royal Astronomical Society. Monthly Notices, 376(3), 939-959.
  • Ibata, R., Martin, N., Irwin, M., Chapman, S., Ferguson, A., Lewis, G., McConnachie, A. (2007). The Haunted Halos of Andromeda and Triangulum: A Panorama of Galaxy Formation in Action. Science, 671, 1591-1623.
  • James, B., Lewis, G., Colless, M. (2007). Topology of large-scale structure in the 2dF Galaxy Redshift Survey. Royal Astronomical Society. Monthly Notices, 375(1), 128-136.

2006

  • Manos, S., Lewis, G. (2006). A Combinatorial Genetic Algorithm for the Configuration of the 2dF/AAOmega Spectrograph at the Anglo-Australian Observatory. GECCO 2006: Genetic and Evolutionary Computation Conference, New York, New York: Association for Computing Machinery (ACM).
  • Chapman, S., Ibata, R., Lewis, G., Ferguson, A., Irwin, M., McConnachie, A., Tanvir, N. (2006). A kinematically selected, metal-poor stellar halo in the ourskirts of M31. The Astrophysical Journal: an international review of astronomy and astronomical physics, 653(1), 255-266.
  • Ibata, R., Chapman, S., Irwin, M., Lewis, G., Martin, N. (2006). A near-zero velocity dispersion stellar component in the Canes Venatici dwarf spheroidal galaxy. Royal Astronomical Society. Monthly Notices, 373, L70-L74. [More Information]
  • Martin, N., Irwin, M., Ibata, R., Conn, B., Lewis, G., Bellazzini, M., Chapman, S., Tanvir, N. (2006). A radial velocity survey of low Galactic latitude structures - III. The Monoceros Ring in front of the Carina and Andromeda galaxies. Royal Astronomical Society. Monthly Notices, 367(1), L69-L73. [More Information]
  • Mackey, A., Huxor, A., Ferguson, A., Tanvir, N., Irwin, M., Ibata, R., Bridges, T., Johnson, R., Lewis, G. (2006). ACS photometry of extended, luminous globular clusters in the outskirts of M31. The Astrophysical Journal: an international review of astronomy and astronomical physics, 653(1), L105-L108.
  • Balogh, M., Babul, A., Voit, G., McCarthy, I., Jones, L., Lewis, G., Ebeling, H. (2006). An analytic investigation of the scatter in the integrated X-ray properties of galaxy groups and clusters. Royal Astronomical Society. Monthly Notices, 366(2), 624-634.
  • Martin, N., Ibata, R., Irwin, M., Chapman, S., Lewis, G., Ferguson, A., Tanvir, N., McConnachie, A. (2006). Discovery and analysis of three faint dwarf galaxies and a globular cluster in the outer halo of the Andromeda galaxy. Royal Astronomical Society. Monthly Notices, 371, 1983-1991.
  • Lewis, G., Ibata, R. (2006). Gravitational microlensing of quasar broad-line regions: the influence of fractal structures. Royal Astronomical Society. Monthly Notices, 367(3), 1217-1221.
  • Gil-Merino, R., Gonzalez-Cadelo, J., Goicoechea, L., Shalyapin, V., Lewis, G. (2006). Is there a caustic crossing in the lensed quasar Q2237+0305 observational data record? Royal Astronomical Society. Monthly Notices, 371, 1478-1482.
  • Barnes, L., Francis, M., James, J., Lewis, G. (2006). Joining the Hubble flow: implications for expanding space. Monthly Notices of the Royal Astronomical Society. Letters (Online), 373, 382-390.
  • Tuntsov, A., Lewis, G. (2006). Microlensing in phase space - I. Continuous propagation of variability moments. Royal Astronomical Society. Monthly Notices, 370(1), 91-104.
  • Lewis, G., Tuntsov, A. (2006). Microlensing in phase space - II. Correlations analysis. Royal Astronomical Society. Monthly Notices, 370(1), 105-120.
  • Tuntsov, A., Lewis, G. (2006). On a systematic bias in surface brightness fluctuations based distances due to gravitational microlensing. Royal Astronomical Society. Monthly Notices, 371, 1259-1268.
  • Lewis, G., Gil-Merino, R. (2006). Quasar microlensing: When compact masses mimic smooth matter. The Astrophysical Journal: an international review of astronomy and astronomical physics, 645(2), 835-840.
  • Lewis, G., Gil-Merino, R. (2006). Seeing star formation regions with gravitational microlensing. The Astrophysical Journal: an international review of astronomy and astronomical physics, 643(1), 260-265.
  • Lewis, G., Brewer, B. (2006). Strong gravitational lens inversion: a bayesian approach. The Astrophysical Journal: an international review of astronomy and astronomical physics, 637(2), 608-619.
  • Lewis, G., Conn, B., Bellazzini, M., Ibata, R., Martin, N., Irwin, M. (2006). The core of the Canis Major galaxy as traced by red clump stars. Royal Astronomical Society. Monthly Notices, 366(3), 865-883.
  • Brewer, B., Lewis, G. (2006). The einstein ring 0047-2808 revisited: a bayesian inversion. The Astrophysical Journal: an international review of astronomy and astronomical physics, 651, 8-13.
  • Swinbank, A., Chapman, S., Smail, I., Lindner, C., Borys, C., Blain, A., Ivison, R., Lewis, G. (2006). The link between submillimetre galaxies and luminous ellipticals: near-infrared IFU spectroscopy of submillimetre galaxies. Royal Astronomical Society. Monthly Notices, 371(1), 465-476.
  • Lewis, G., McConnachie, A., Chapman, S., Ibata, R., Ferguson, A., Irwin, M., Tanvir, N., Martin, N. (2006). The stellar halo and outer disk of M33. The Astrophysical Journal: an international review of astronomy and astronomical physics, 647(1), L25-L28.

2005

  • Chapman, S., Ibata, R., Lewis, G., Ferguson, A., Irwin, M., McConnachie, A., Tanvir, N. (2005). A Keck deimos kinematic study of Andromeda IX: Dark matter on the smallest galactic scales. The Astrophysical Journal: an international review of astronomy and astronomical physics, 632(2), L87-L90.
  • Irwin, M., Ferguson, A., Ibata, R., Lewis, G., Tanvir, N. (2005). A minor-axis surface brightness profile for M31. The Astrophysical Journal: an international review of astronomy and astronomical physics, 628(2), L105-L108.
  • Huxor, A., Tanvir, N., Irwin, M., Ibata, R., Collett, J., Ferguson, A., Bridges, T., Lewis, G. (2005). A new population of extended, luminous star clusters in the halo of M31. Royal Astronomical Society. Monthly Notices, 360(3), 1007-1012.
  • Martin, N., Ibata, R., Conn, B., Lewis, G., Bellazzini, M., Irwin, M. (2005). A radial velocity survey of low Galactic latitude structures - I. Kinematics of the Canis Major dwarf galaxy. Royal Astronomical Society. Monthly Notices, 362(3), 906-914.
  • Conn, B., Martin, N., Lewis, G., Ibata, R., Bellazzini, M., Irwin, M. (2005). A radial velocity survey of low Galactic latitude structures: II. The Monoceros Ring behind the Canis Major dwarf galaxy. Royal Astronomical Society. Monthly Notices, 364(1), L13-L17.
  • Martin, N., Ibata, R., Conn, B., Irwin, M., Lewis, G. (2005). Correcting the influence of an asymmetric line spread function in 2-degree field spectrograph data. Astronomical Society of Australia. Publications (Print), 22(3), 236-244.
  • McConnachie, A., Irwin, M., Ferguson, A., Ibata, R., Lewis, G., Tanvir, N. (2005). Distances and metallicities for 17 Local Group galaxies. Royal Astronomical Society. Monthly Notices, 356(3), 979-997.
  • Lewis, G. (2005). Foreword: Gravity Workshop 2004. Astronomical Society of Australia. Publications (Print), 22(3), 174-174.
  • Bailin, J., Kawata, D., Gibson, B., Steinmetz, M., Navarro, J., Brook, C., Gill, S., Ibata, R., Knebe, A., Lewis, G., et al (2005). Internal alignment of the halos of disk galaxies in cosmological hydrodynamic simulations. The Astrophysical Journal Letters (NO NOT USE), 627(1), L17-L20.
  • Gil-Merino, R., Lewis, G. (2005). Interpreting microlensing signal in QSO 2237+0305: Stars or planets? Astronomy and Astrophysics (A and A), 437(1), L15-L18.
  • Gil-Merino, R., Wambsganss, J., Goicoechea, L., Lewis, G. (2005). Limits on the transverse velocity of the lensing galaxy in Q2237+0305 from the lack of strong microlensing variability. Astronomy and Astrophysics (A and A), 432(1), 83-89.
  • Lewis, G., Chapman, S., Helou, G. (2005). Modeling the Evolution of Infrared Luminous Galaxies: The Influence of the Luminosity - Temperature Distribution. The Astrophysical Journal: an international review of astronomy and astronomical physics, 621(1), 32-40.
  • Ibata, R., Chapman, S., Ferguson, A., Lewis, G., Irwin, M., Tanvir, N. (2005). On the accretion origin of a vast extended stellar disk around the Andromeda galaxy. The Astrophysical Journal: an international review of astronomy and astronomical physics, 634(1), 287-313.
  • Brewer, B., Lewis, G. (2005). Probing subparsec structure in the Lyman alpha forest with gravitational microlensing. Royal Astronomical Society. Monthly Notices, 356(2), 703-710.
  • Burton, M., Lawrence, J., Ashley, M., Bailey, J., Blake, C., Bedding, T., Bland-Hawthorn, J., Bond, I., Glazebrook, K., Lewis, G., Tuthill, P., et al (2005). Science Programs for a 2-m Class Telescope at Dome C, Antarctica:PILOT, the Pathfinder for an International Large Optical Telescope. Astronomical Society of Australia. Publications (Print), 22(3), 199-235.
  • Barnes, L., Francis, M., Lewis, G., Linder, E. (2005). The Influence of Evolving Dark Energy on Cosmology. Astronomical Society of Australia. Publications (Print), 22(4), 315-325.
  • Conn, B., Lewis, G., Irwin, M., Ibata, R., Ferguson, A., Tanvir, N., Irwin, J. (2005). The Isaac Newton telescope wide field camera survey of the monoceros ring: Accretion origin or galactic anomaly? Royal Astronomical Society. Monthly Notices, 362(2), 475-488.
  • Wayth, R., Warren, S., Lewis, G., Hewett, P. (2005). The lens and source of the optical Einstein ring gravitational lens ER 0047-2808. Royal Astronomical Society. Monthly Notices, 360(4), 1333-1344.
  • Ferguson, A., Johnson, R., Faria, D., Irwin, M., Ibata, R., Johnston, K., Lewis, G., Tanvir, N. (2005). The stellar populations of the M31 halo substructure. The Astrophysical Journal: an international review of astronomy and astronomical physics, 622(2), L109-L112.
  • Lewis, G., Ibata, R. (2005). Tidal tails and the shape of the dark matter halo. Astronomical Society of Australia. Publications (Print), 22(3), 190-194.
  • Brewer, B., Lewis, G. (2005). When Darwin met Einstein: Gravitational lens inversion with genetic algorithms. Astronomical Society of Australia. Publications (Print), 22(2), 128-135.

2004

  • Martin, N., Ibata, R., Bellazzini, M., Lewis, G., Irwin, M., Dehnen, W. (2004). A Dwarf Galaxy Remnant In Canis Major: The Fossil Of An In-Plane Accretion On To The Milky Way. Royal Astronomical Society. Monthly Notices, 348(1), 12-23.
  • Knebe, A., Gill, S., Gibson, B., Lewis, G., Ibata, R., Dopita, M. (2004). Anisotropy In The Distribution Of Satellite Galaxy Orbits. The Astrophysical Journal: an international review of astronomy and astronomical physics, 603(1), 7-11.
  • Tuntsov, A., Lewis, G., Ibata, R., Kneib, J. (2004). Detecting Compact Dark Matter Galaxy Clusters Via Gravitational Microlensing: A2218 And A370. Royal Astronomical Society. Monthly Notices, 353(3), 853-866.
  • Bellazzini, M., Ibata, R., Monaco, L., Martin, N., Irwin, M., Lewis, G. (2004). Detection of the Canis Major galaxy at (l;b) = (244 degrees; -8 degrees) and in the background of Galactic open clusters. Royal Astronomical Society. Monthly Notices, 354(4), 1263-1278.
  • McConnachie, A., Irwin, M., Ferguson, A., Ibata, R., Lewis, G., Tanvir, N. (2004). Determining The Location Of The Tip Of The Red Giant Branch In Old Stellar Populations: M33, Andromeda I And Ii. Royal Astronomical Society. Monthly Notices, 350(1), 243-252.
  • Chapman, S., Scott, D., Windhorst, R., Frayer, D., Borys, C., Lewis, G., Ivison, R. (2004). Further Multiwavelength Observations Of The SSA 22 Lyalpha-Emitting Blob. The Astrophysical Journal: an international review of astronomy and astronomical physics, 606(1), 85-91.
  • Lewis, G. (2004). Gravitational microlensing of fractal sources. Royal Astronomical Society. Monthly Notices, 355, 106-110.
  • Lewis, G., Ibata, R. (2004). Gravitational Microlensing Of Quasar Broad-Line Regions At Large Optical Depths. Royal Astronomical Society. Monthly Notices, 348(1), 24-33.
  • Gomez-Alvarez, P., Gradolph, E., Sanchez, S., Arribas, S., Wisotzki, L., Wambsganss, J., Munoz, J., Lewis, G. (2004). Integral Field Spectroscopy Of The Gravitational Lens He1104-1805. Astronomische Nachrichten, 325(2), 132-134. [More Information]
  • Tuntsov, A., Walker, M., Lewis, G. (2004). Measuring Transverse Velocities In Gravitationally Lensed Extragalactic Systems Using An Annual Parallax Effect. Royal Astronomical Society. Monthly Notices, 352(1), 125-130.
  • Schechter, P., Wambsganss, J., Lewis, G. (2004). Qualitative Aspects Of Quasar Microlensing With Two Mass Components: Magnification Patterns And Probability Distributions. The Astrophysical Journal: an international review of astronomy and astronomical physics, 613(1), 77-85.
  • Carilli, C., Walter, F., Bertoldi, F., Menten, K., Fan, X., Lewis, G., Strauss, M., Cox, P., Beelen, A., Omont, N., et al (2004). Radio Continuum Imaging Of Far-Infrared-Luminous QSOs At Z > 6. The Astronomical Journal, 128(3), 997-1001.
  • Ibata, R., Chapman, S., Ferguson, A., Irwin, M., Lewis, G., McConnachie, A. (2004). Taking Measure Of The Andromeda Halo: A Kinematic Analysis Of The Giant Stream Surrounding M31. Royal Astronomical Society. Monthly Notices, 351(1), 117-124.
  • Lewis, G., Ibata, R., Chapman, S., Ferguson, A., McConnachie, A., Irwin, M., Tanvir, N. (2004). The Andromeda stream. Astronomical Society of Australia. Publications (Print), 21(2), 203-206.
  • Lewis, G., Ibata, R., Irwin, M., Martin, N., Bellazzini, M., Conn, B. (2004). The Canis Major dwarf galaxy. Astronomical Society of Australia. Publications (Print), 21(4), 371-374.
  • Ellison, S., Ibata, R., Pettini, M., Lewis, G., Aracil, B., Petitjean, P., Srianand, R. (2004). The sizes and kinematic structure of absorption systems towards the lensed quasar APM08279 + 5255. Astronomy and Astrophysics (A and A), 414, 79-93.
  • McConnachie, A., Irwin, M., Lewis, G., Ibata, R., Chapman, S., Ferguson, A., Tanvir, N. (2004). The Tidal Trail Of Ngc 205? Royal Astronomical Society. Monthly Notices, 351(4), L94-L98.
  • Martin, N., Ibata, R., Conn, B., Lewis, G., Bellazzini, M., Irwin, M., McConnachie, A. (2004). Why the Canis Major overdensity is not due to the Warp: analysis of its radial profile and velocities. Royal Astronomical Society. Monthly Notices, 355(4), L33-L37.

2003

  • Carilli, C., Lewis, G., Djorgovski, S., Mahabal, A., Cox, P., Bertoldi, F., Omont, A. (2003). A molecular einstein ring: Imaging a starburst disk surrounding a quasi-stellar object. Science, 300(5620), 773-775.
  • Lewis, G. (2003). Galactic Cannibalism: A Universe of Islands. In Nicholls, Pailthorpe (Eds.), From Zero to Infinity, (pp. 181-193). Sydney: Science Foundation for Physics.
  • Zhao, H., Ibata, R., Lewis, G., Irwin, M. (2003). Kinematic outliers in the large magellanic cloud: constraints on star-star microlensing. Royal Astronomical Society. Monthly Notices, 339(3), 701-706.
  • Lewis, G., Ibata, R. (2003). Microlensing-induced absorption-line variability. Royal Astronomical Society. Monthly Notices, 340(2), 562-572.
  • Walker, M., Lewis, G. (2003). Nanolensing of gamma-ray bursts. The Astrophysical Journal: an international review of astronomy and astronomical physics, 589(2), 844-860.
  • Ibata, R., Irwin, M., Lewis, G., Ferguson, A., Tanvir, N. (2003). One ring to encompass them all: a giant stellar structure that surrounds the galaxy. Royal Astronomical Society. Monthly Notices, 340(3), L21-L27.
  • Lewis, G., Chapman, S., Kuncic, Z. (2003). Submillimeter observations of a sample of broad absorption line quasars. The Astrophysical Journal: an international review of astronomy and astronomical physics, 596, L35-L38.
  • Chapman, S., Helou, G., Lewis, G., Dale, D. (2003). The bivariate luminosity-color distribution of Iras galaxies and implications for the high-redshift universe. The Astrophysical Journal: an international review of astronomy and astronomical physics, 588(1), 186-198.
  • Chapman, S., Barger, A., Cowie, L., Scott, D., Borys, C., Capak, P., Fomalont, E., Lewis, G., Richards, E., Steffen, A., et al (2003). The properties of microjansky radio sources in the hubble deep field-north, SSA 13, and SSA 22 fields. The Astrophysical Journal: an international review of astronomy and astronomical physics, 585(1), 57-66.
  • McConnachie, A., Irwin, M., Ibata, R., Ferguson, A., Lewis, G., Tanvir, N. (2003). The three-dimensional structure of the giant stellar stream in Andromeda. Royal Astronomical Society. Monthly Notices, 343(4), 1335-1340.

2002

  • Lewis, G., Irwin, M., Ibata, R., Gibson, B. (2002). AAT/WFI Observations of the Extragalactic HI Cloud HIPASS J1712-64. Astronomical Society of Australia. Publications (Print), 19, 257-259.
  • Lewis, G., Ibata, R. (2002). An investigation of gravitational lens determinations of H-0 in quintessence cosmologies. Royal Astronomical Society. Monthly Notices, 337(1), 26-33.
  • Ferguson, A., Irwin, M., Rodrigo, A., Lewis, G., Tanvir, N. (2002). Evidence for stellar substructure in the halo and outer disk of m31. The Astronomical Journal, 124, 1452-1463.
  • Willis, J., Hewett, P., Warren, S., Lewis, G. (2002). Luminous early-type field galaxies at z ∼ 0.4 – II. Star formation history and space density. Royal Astronomical Society. Monthly Notices, 337, 953-966.
  • Babul, A., Balogh, M., Lewis, G., POOLE, G. (2002). Physical implications of the X-ray properties of galaxy groups and clusters. Royal Astronomical Society. Monthly Notices, 330, 329-343.
  • Lewis, G., Carilli, C., Papadopoulos, P., Ivison, R. (2002). Resolved nuclear CO(1–0) emission in APM 0827915255: gravitational lensing by a naked cusp? Monthly Notices of the Royal Astronomical Society. Letters (Online), 330, L-15-L-18.
  • Lewis, G., Ibata, R., Ellison, S., Aracil, B., Petitjean, P., Pettini, M., Srianand, R. (2002). Spatially resolved STIS spectra of the gravitationally lensed broad absorption line quasar APM08279+5255: the nature of component C and evidence for microlensing. Monthly Notices of the Royal Astronomical Society. Letters (Online), 334, L7-L10.
  • Ibata, R., Lewis, G., Irwin, M., Cambresy, L. (2002). Substructure of the outer Galactic halo from the 2-Micron All-Sky Survey. Royal Astronomical Society. Monthly Notices, 332, 921-927.
  • Ibata, R., Lewis, G., Irwin, M., Quinn, T. (2002). Uncovering cold dark matter halo substructure with tidal streams. Royal Astronomical Society. Monthly Notices, 332, 915-920.
  • Chapman, S., Lewis, G., Scott, D., Borys, C., Richards, E. (2002). Understanding the nature of optically faint radio sources and their connection to the submillimeter population. The Astrophysical Journal: an international review of astronomy and astronomical physics, 570, 557-572.

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