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; Sadler E, 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, Gaensler B, Lagattuta D, Brough S, Murphy T, Croom S, Burgett W, Hasinger G; Australian Research Council (ARC)/Linkage Infrastructure, Equipment and Facilities (LIEF).
  • The Universe’s Dirty Secret: Galactic Cannibalism; Bate N, Lewis G, McMonigal B, Irwin M, Ibata R, Ferguson A; DVC International/IPDF Grant.
  • Renewing Intersects share of the National Computational Infrastructures peak facility; Lewis G, Müller R, Radom L, Stampfl C, Reimers J; 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, Barnes L, Croom S, Lewis G, Colless M, Silk J; Australian Research Council (ARC)/Super Science Fellowships.
  • Accretion and feedback in galaxies with cosmic time; Tepper Garcia T, Bland-Hawthorn J, Croom S, Lewis G, Colless M, Silk J, Allen J, Allen J; 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).
  • 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.
  • Caught in the act by PAndAS: An unparalleled view of galaxy evolution; Lewis G; Australian Research Council (ARC)/Future Fellowships (FT).

2010

  • The Pan-Andromeda Archaeological Survey (PAndAS); Lewis G; DVC International/IPDF Grant.

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

  • 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).
  • Field Plate for the 6dF Spectrograph; Lewis G, et a, Parker Q; Australian Research Council (ARC)/Linkage Infrastructure, Equipment and Facilities (LIEF).

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

  • Ibata, R., Ibata, N., Lewis, G., Martin, N., Conn, A., Elahi, P., Arias, V., Fernando, N. (2014). A thousand shadows of andromeda: Rotating planes of satellites in the millennium-II cosmological simulation. The Astrophysical Journal Letters, 784(1), Article number L6. [More Information]
  • 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]
  • Mahdi, H., van Beek, M., Elahi, P., Lewis, G., Power, C., Killedar, M. (2014). Gravitational lensing in WDM cosmologies: the cross-section for giant arcs. Monthly Notices of the Royal Astronomical Society, 441(3), 1954-1963. [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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. [More Information]
  • Avelino, P., Bolejko, K., Lewis, G. (2014). Nonlinear Chaplygin gas cosmologies. Physical Review D, 89(10), Article number 103004. [More Information]
  • Kafle, P., Sharma, S., Lewis, G., Bland-Hawthorn, J. (2014). On the shoulders of giants: Properties of the stellar halo and the milky way mass distribution. The Astrophysical Journal, 794(1), Article number 59. [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. Monthly Notices Royal Astronomical Society, 437(1), 116-131-116-131. [More Information]
  • Redlich, M., Bolejko, K., Meyer, S., Lewis, G., Bartelmann, M. (2014). Probing spatial homogeneity with LTB models: A detailed discussion. Astronomy and Astrophysics (A and A), 570, Article number A63. [More Information]
  • Diakogiannis, F., Lewis, G., Ibata, R. (2014). Resolving the mass-anisotropy degeneracy of the spherically symmetric jeans equation - I. Theoretical foundation. Monthly Notices of the Royal Astronomical Society, 443(1), 598-609-598-609.
  • Diakogiannis, F., Lewis, G., Ibata, R. (2014). Resolving the mass-anisotropy degeneracy of the spherically symmetric jeans equation - II. Optimum smoothing and model validation. Monthly Notices of the Royal Astronomical Society, 443(1), 610-623-610-623. [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, 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, 783(1), 1-14. [More Information]
  • Huxor, A., Mackey, A., Ferguson, A., Irwin, M., Martin, N., Tanvir, N., Veljanoski, J., McConnachie, A., Fishlock, C., Ibata, R., Lewis, G. (2014). The outer halo globular cluster system of M31 - I. the final PAndAS catalogue. Monthly Notices of the Royal Astronomical Society, 442(3), 2165-2187-2165-2187. [More Information]
  • Veljanoski, J., Mackey, A., Ferguson, A., Huxor, A., Cote, P., Irwin, M., Tanvir, N., Penarrubia, J., Bernard, E., Fardal, M., Lewis, G., et al (2014). The outer halo globular cluster system of M31 - II. Kinematics. Monthly Notices of the Royal Astronomical Society, 442(4), 2929-2950-2929-2950. [More Information]
  • Martin, N., Ibata, R., Rich, R., Collins, M., Fardal, M., Irwin, M., Lewis, G., McConnachie, A., Babul, A., Bate, N., Conn, A., et al (2014). The PAndAS field of streams: Stellar structures in the milky way halo toward andromeda and triangulum. The Astrophysical Journal, 787(1), Article number 19. [More Information]
  • Ibata, N., Ibata, R., Famaey, B., Lewis, G. (2014). Velocity anti-correlation of diametrically opposed galaxy satellites in the low-redshift Universe. Nature, 511(7511), 563-566-563-566. [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, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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, 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: Letters (MNRAS Letters), 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, 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, 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, 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, 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, 761(2), 1-12. [More Information]
  • Killedar, M., Lasky, P., Lewis, G., Fluke, C. (2012). Gravitational lensing with three-dimensional ray tracing. Monthly Notices Royal Astronomical Society, 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 (MNRAS Letters), 423(1), L26-L29. [More Information]
  • Kwan, J., Lewis, G., Linder, E. (2012). Mapping growth and gravity with robust redshift space distortions. The Astrophysical Journal, 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, 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. Monthly Notices Royal Astronomical Society, 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, 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, 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, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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, 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, 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, 741(2), 80-1-80-6. [More Information]
  • Lane, R., Kiss, L., Lewis, G., Ibata, R., Siebert, A., Bedding, T., Szekely, 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, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. [More Information]
  • 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. Monthly Notices Royal Astronomical Society, 406(4), 2732-2742.
  • Killedar, M., Lewis, G. (2010). Lyα absorbers in motion: consequences of gravitational lensing for the cosmological redshift drift experiment. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. Publications Astronomical Society of Australia (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, 723(2), 1038-1052.
  • van Oirschot, P., Kwan, J., Lewis, G. (2010). Through the looking glass: why the 'cosmic horizon' is not a horizon. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 396(4), 1842-1850.
  • Francis, M., Lewis, G., Linder, E. (2009). Can early dark energy be detected in non-linear structure? Monthly Notices Royal Astronomical Society, 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, 699(2), L169-L173.
  • Kwan, J., Francis, M., Lewis, G. (2009). Fractal Bubble cosmology: a concordant cosmological model? Monthly Notices Royal Astronomical Society, 399, L6-L10. [More Information]
  • Francis, M., Lewis, G., Linder, E. (2009). Halo mass functions in early dark energy cosmologies. Monthly Notices Royal Astronomical Society, 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, 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, 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. Monthly Notices Royal Astronomical Society, 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, 698(2), L77-L81. [More Information]
  • 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. Monthly Notices Royal Astronomical Society, 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, 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, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 388(1), L34-L38. [More Information]
  • Brewer, B., Lewis, G. (2008). Unlensing HST observations of the Einstein ring 1RXS J1131-1231: a Bayesian analysis. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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, 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, 655(2), L85-L88.
  • Lewis, G., Francis, M., Barnes, L., James, J. (2007). Coordinate confusion in conformal cosmology. Monthly Notices Royal Astronomical Society, 381(1), L50-L54. [More Information]
  • Francis, M., Barnes, L., James, J., Lewis, G. (2007). Expanding Space: the root of all evil? Publications Astronomical Society of Australia (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. Monthly Notices Royal Astronomical Society, 375(4), 1364-1370.
  • Lewis, G., Kwan, J. (2007). No Way Back: Maximizing Survival Time Below the Schwarzschild Event Horizon. Publications Astronomical Society of Australia (Print), 24(2), 46-52.
  • Francis, M., Lewis, G., Linder, E. (2007). Power spectra to 1 per cent accuracy between dynamical dark energy cosmologies. Monthly Notices Royal Astronomical Society, 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. Publications Astronomical Society of Australia (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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 371, 1983-1991.
  • Lewis, G., Ibata, R. (2006). Gravitational microlensing of quasar broad-line regions: the influence of fractal structures. Monthly Notices Royal Astronomical Society, 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? Monthly Notices Royal Astronomical Society, 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 (MNRAS Letters), 373, 382-390.
  • Tuntsov, A., Lewis, G. (2006). Microlensing in phase space - I. Continuous propagation of variability moments. Monthly Notices Royal Astronomical Society, 370(1), 91-104.
  • Lewis, G., Tuntsov, A. (2006). Microlensing in phase space - II. Correlations analysis. Monthly Notices Royal Astronomical Society, 370(1), 105-120.
  • Tuntsov, A., Lewis, G. (2006). On a systematic bias in surface brightness fluctuations based distances due to gravitational microlensing. Monthly Notices Royal Astronomical Society, 371, 1259-1268.
  • Lewis, G., Gil-Merino, R. (2006). Quasar microlensing: When compact masses mimic smooth matter. The Astrophysical Journal, 645(2), 835-840.
  • Lewis, G., Gil-Merino, R. (2006). Seeing star formation regions with gravitational microlensing. The Astrophysical Journal, 643(1), 260-265.
  • Lewis, G., Brewer, B. (2006). Strong gravitational lens inversion: a bayesian approach. The Astrophysical Journal, 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. Monthly Notices Royal Astronomical Society, 366(3), 865-883.
  • Brewer, B., Lewis, G. (2006). The einstein ring 0047-2808 revisited: a bayesian inversion. The Astrophysical Journal, 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. Monthly Notices Royal Astronomical Society, 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, 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, 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, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. Publications Astronomical Society of Australia (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. Monthly Notices Royal Astronomical Society, 356(3), 979-997.
  • Lewis, G. (2005). Foreword: Gravity Workshop 2004. Publications Astronomical Society of Australia (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, 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, 634(1), 287-313.
  • Brewer, B., Lewis, G. (2005). Probing subparsec structure in the Lyman alpha forest with gravitational microlensing. Monthly Notices Royal Astronomical Society, 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. Publications Astronomical Society of Australia (Print), 22(3), 199-235.
  • Barnes, L., Francis, M., Lewis, G., Linder, E. (2005). The Influence of Evolving Dark Energy on Cosmology. Publications Astronomical Society of Australia (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? Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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, 622(2), L109-L112.
  • Lewis, G., Ibata, R. (2005). Tidal tails and the shape of the dark matter halo. Publications Astronomical Society of Australia (Print), 22(3), 190-194.
  • Brewer, B., Lewis, G. (2005). When Darwin met Einstein: Gravitational lens inversion with genetic algorithms. Publications Astronomical Society of Australia (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. Monthly Notices Royal Astronomical Society, 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, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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, 606(1), 85-91.
  • Lewis, G. (2004). Gravitational microlensing of fractal sources. Monthly Notices Royal Astronomical Society, 355, 106-110.
  • Lewis, G., Ibata, R. (2004). Gravitational Microlensing Of Quasar Broad-Line Regions At Large Optical Depths. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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, 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. Monthly Notices Royal Astronomical Society, 351(1), 117-124.
  • Lewis, G., Ibata, R., Chapman, S., Ferguson, A., McConnachie, A., Irwin, M., Tanvir, N. (2004). The Andromeda stream. Publications Astronomical Society of Australia (Print), 21(2), 203-206.
  • Lewis, G., Ibata, R., Irwin, M., Martin, N., Bellazzini, M., Conn, B. (2004). The Canis Major dwarf galaxy. Publications Astronomical Society of Australia (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? Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 339(3), 701-706.
  • Lewis, G., Ibata, R. (2003). Microlensing-induced absorption-line variability. Monthly Notices Royal Astronomical Society, 340(2), 562-572.
  • Walker, M., Lewis, G. (2003). Nanolensing of gamma-ray bursts. The Astrophysical Journal, 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. Monthly Notices Royal Astronomical Society, 340(3), L21-L27.
  • Lewis, G., Chapman, S., Kuncic, Z. (2003). Submillimeter observations of a sample of broad absorption line quasars. The Astrophysical Journal, 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, 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, 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. Monthly Notices Royal Astronomical Society, 343(4), 1335-1340.
  • Lewis, G., Irwin, M., Ibata, R., Gibson, B. (2002). AAT/WFI Observations of the Extragalactic HI Cloud HIPASS J1712-64. Publications Astronomical Society of Australia (Print).
  • Lewis, G., Ibata, R. (2002). An investigation of gravitational lens determinations of H-0 in quintessence cosmologies. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 337, 953-966.
  • Babul, A., Balogh, M., Lewis, G., POOLE, G. (2002). Physical implications of the X-ray properties of galaxy groups and clusters. Monthly Notices Royal Astronomical Society, 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 (MNRAS Letters), 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 (MNRAS Letters), 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. Monthly Notices Royal Astronomical Society, 332, 921-927.
  • Ibata, R., Lewis, G., Irwin, M., Quinn, T. (2002). Uncovering cold dark matter halo substructure with tidal streams. Monthly Notices Royal Astronomical Society, 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, 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

  • Ibata, R., Ibata, N., Lewis, G., Martin, N., Conn, A., Elahi, P., Arias, V., Fernando, N. (2014). A thousand shadows of andromeda: Rotating planes of satellites in the millennium-II cosmological simulation. The Astrophysical Journal Letters, 784(1), Article number L6. [More Information]
  • 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]
  • Mahdi, H., van Beek, M., Elahi, P., Lewis, G., Power, C., Killedar, M. (2014). Gravitational lensing in WDM cosmologies: the cross-section for giant arcs. Monthly Notices of the Royal Astronomical Society, 441(3), 1954-1963. [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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. [More Information]
  • Avelino, P., Bolejko, K., Lewis, G. (2014). Nonlinear Chaplygin gas cosmologies. Physical Review D, 89(10), Article number 103004. [More Information]
  • Kafle, P., Sharma, S., Lewis, G., Bland-Hawthorn, J. (2014). On the shoulders of giants: Properties of the stellar halo and the milky way mass distribution. The Astrophysical Journal, 794(1), Article number 59. [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. Monthly Notices Royal Astronomical Society, 437(1), 116-131-116-131. [More Information]
  • Redlich, M., Bolejko, K., Meyer, S., Lewis, G., Bartelmann, M. (2014). Probing spatial homogeneity with LTB models: A detailed discussion. Astronomy and Astrophysics (A and A), 570, Article number A63. [More Information]
  • Diakogiannis, F., Lewis, G., Ibata, R. (2014). Resolving the mass-anisotropy degeneracy of the spherically symmetric jeans equation - I. Theoretical foundation. Monthly Notices of the Royal Astronomical Society, 443(1), 598-609-598-609.
  • Diakogiannis, F., Lewis, G., Ibata, R. (2014). Resolving the mass-anisotropy degeneracy of the spherically symmetric jeans equation - II. Optimum smoothing and model validation. Monthly Notices of the Royal Astronomical Society, 443(1), 610-623-610-623. [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, 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, 783(1), 1-14. [More Information]
  • Huxor, A., Mackey, A., Ferguson, A., Irwin, M., Martin, N., Tanvir, N., Veljanoski, J., McConnachie, A., Fishlock, C., Ibata, R., Lewis, G. (2014). The outer halo globular cluster system of M31 - I. the final PAndAS catalogue. Monthly Notices of the Royal Astronomical Society, 442(3), 2165-2187-2165-2187. [More Information]
  • Veljanoski, J., Mackey, A., Ferguson, A., Huxor, A., Cote, P., Irwin, M., Tanvir, N., Penarrubia, J., Bernard, E., Fardal, M., Lewis, G., et al (2014). The outer halo globular cluster system of M31 - II. Kinematics. Monthly Notices of the Royal Astronomical Society, 442(4), 2929-2950-2929-2950. [More Information]
  • Martin, N., Ibata, R., Rich, R., Collins, M., Fardal, M., Irwin, M., Lewis, G., McConnachie, A., Babul, A., Bate, N., Conn, A., et al (2014). The PAndAS field of streams: Stellar structures in the milky way halo toward andromeda and triangulum. The Astrophysical Journal, 787(1), Article number 19. [More Information]
  • Ibata, N., Ibata, R., Famaey, B., Lewis, G. (2014). Velocity anti-correlation of diametrically opposed galaxy satellites in the low-redshift Universe. Nature, 511(7511), 563-566-563-566. [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, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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, 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: Letters (MNRAS Letters), 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, 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, 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, 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, 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, 761(2), 1-12. [More Information]
  • Killedar, M., Lasky, P., Lewis, G., Fluke, C. (2012). Gravitational lensing with three-dimensional ray tracing. Monthly Notices Royal Astronomical Society, 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 (MNRAS Letters), 423(1), L26-L29. [More Information]
  • Kwan, J., Lewis, G., Linder, E. (2012). Mapping growth and gravity with robust redshift space distortions. The Astrophysical Journal, 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, 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. Monthly Notices Royal Astronomical Society, 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, 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, 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, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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, 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, 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, 741(2), 80-1-80-6. [More Information]
  • Lane, R., Kiss, L., Lewis, G., Ibata, R., Siebert, A., Bedding, T., Szekely, 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, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. [More Information]
  • 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. Monthly Notices Royal Astronomical Society, 406(4), 2732-2742.
  • Killedar, M., Lewis, G. (2010). Lyα absorbers in motion: consequences of gravitational lensing for the cosmological redshift drift experiment. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. Publications Astronomical Society of Australia (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, 723(2), 1038-1052.
  • van Oirschot, P., Kwan, J., Lewis, G. (2010). Through the looking glass: why the 'cosmic horizon' is not a horizon. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 396(4), 1842-1850.
  • Francis, M., Lewis, G., Linder, E. (2009). Can early dark energy be detected in non-linear structure? Monthly Notices Royal Astronomical Society, 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, 699(2), L169-L173.
  • Kwan, J., Francis, M., Lewis, G. (2009). Fractal Bubble cosmology: a concordant cosmological model? Monthly Notices Royal Astronomical Society, 399, L6-L10. [More Information]
  • Francis, M., Lewis, G., Linder, E. (2009). Halo mass functions in early dark energy cosmologies. Monthly Notices Royal Astronomical Society, 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, 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, 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. Monthly Notices Royal Astronomical Society, 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, 698(2), L77-L81. [More Information]
  • 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. Monthly Notices Royal Astronomical Society, 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, 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, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 388(1), L34-L38. [More Information]
  • Brewer, B., Lewis, G. (2008). Unlensing HST observations of the Einstein ring 1RXS J1131-1231: a Bayesian analysis. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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, 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, 655(2), L85-L88.
  • Lewis, G., Francis, M., Barnes, L., James, J. (2007). Coordinate confusion in conformal cosmology. Monthly Notices Royal Astronomical Society, 381(1), L50-L54. [More Information]
  • Francis, M., Barnes, L., James, J., Lewis, G. (2007). Expanding Space: the root of all evil? Publications Astronomical Society of Australia (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. Monthly Notices Royal Astronomical Society, 375(4), 1364-1370.
  • Lewis, G., Kwan, J. (2007). No Way Back: Maximizing Survival Time Below the Schwarzschild Event Horizon. Publications Astronomical Society of Australia (Print), 24(2), 46-52.
  • Francis, M., Lewis, G., Linder, E. (2007). Power spectra to 1 per cent accuracy between dynamical dark energy cosmologies. Monthly Notices Royal Astronomical Society, 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. Publications Astronomical Society of Australia (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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 371, 1983-1991.
  • Lewis, G., Ibata, R. (2006). Gravitational microlensing of quasar broad-line regions: the influence of fractal structures. Monthly Notices Royal Astronomical Society, 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? Monthly Notices Royal Astronomical Society, 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 (MNRAS Letters), 373, 382-390.
  • Tuntsov, A., Lewis, G. (2006). Microlensing in phase space - I. Continuous propagation of variability moments. Monthly Notices Royal Astronomical Society, 370(1), 91-104.
  • Lewis, G., Tuntsov, A. (2006). Microlensing in phase space - II. Correlations analysis. Monthly Notices Royal Astronomical Society, 370(1), 105-120.
  • Tuntsov, A., Lewis, G. (2006). On a systematic bias in surface brightness fluctuations based distances due to gravitational microlensing. Monthly Notices Royal Astronomical Society, 371, 1259-1268.
  • Lewis, G., Gil-Merino, R. (2006). Quasar microlensing: When compact masses mimic smooth matter. The Astrophysical Journal, 645(2), 835-840.
  • Lewis, G., Gil-Merino, R. (2006). Seeing star formation regions with gravitational microlensing. The Astrophysical Journal, 643(1), 260-265.
  • Lewis, G., Brewer, B. (2006). Strong gravitational lens inversion: a bayesian approach. The Astrophysical Journal, 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. Monthly Notices Royal Astronomical Society, 366(3), 865-883.
  • Brewer, B., Lewis, G. (2006). The einstein ring 0047-2808 revisited: a bayesian inversion. The Astrophysical Journal, 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. Monthly Notices Royal Astronomical Society, 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, 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, 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, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. Publications Astronomical Society of Australia (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. Monthly Notices Royal Astronomical Society, 356(3), 979-997.
  • Lewis, G. (2005). Foreword: Gravity Workshop 2004. Publications Astronomical Society of Australia (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, 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, 634(1), 287-313.
  • Brewer, B., Lewis, G. (2005). Probing subparsec structure in the Lyman alpha forest with gravitational microlensing. Monthly Notices Royal Astronomical Society, 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. Publications Astronomical Society of Australia (Print), 22(3), 199-235.
  • Barnes, L., Francis, M., Lewis, G., Linder, E. (2005). The Influence of Evolving Dark Energy on Cosmology. Publications Astronomical Society of Australia (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? Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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, 622(2), L109-L112.
  • Lewis, G., Ibata, R. (2005). Tidal tails and the shape of the dark matter halo. Publications Astronomical Society of Australia (Print), 22(3), 190-194.
  • Brewer, B., Lewis, G. (2005). When Darwin met Einstein: Gravitational lens inversion with genetic algorithms. Publications Astronomical Society of Australia (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. Monthly Notices Royal Astronomical Society, 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, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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, 606(1), 85-91.
  • Lewis, G. (2004). Gravitational microlensing of fractal sources. Monthly Notices Royal Astronomical Society, 355, 106-110.
  • Lewis, G., Ibata, R. (2004). Gravitational Microlensing Of Quasar Broad-Line Regions At Large Optical Depths. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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, 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. Monthly Notices Royal Astronomical Society, 351(1), 117-124.
  • Lewis, G., Ibata, R., Chapman, S., Ferguson, A., McConnachie, A., Irwin, M., Tanvir, N. (2004). The Andromeda stream. Publications Astronomical Society of Australia (Print), 21(2), 203-206.
  • Lewis, G., Ibata, R., Irwin, M., Martin, N., Bellazzini, M., Conn, B. (2004). The Canis Major dwarf galaxy. Publications Astronomical Society of Australia (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? Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 339(3), 701-706.
  • Lewis, G., Ibata, R. (2003). Microlensing-induced absorption-line variability. Monthly Notices Royal Astronomical Society, 340(2), 562-572.
  • Walker, M., Lewis, G. (2003). Nanolensing of gamma-ray bursts. The Astrophysical Journal, 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. Monthly Notices Royal Astronomical Society, 340(3), L21-L27.
  • Lewis, G., Chapman, S., Kuncic, Z. (2003). Submillimeter observations of a sample of broad absorption line quasars. The Astrophysical Journal, 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, 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, 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. Monthly Notices Royal Astronomical Society, 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. Publications Astronomical Society of Australia (Print).
  • Lewis, G., Ibata, R. (2002). An investigation of gravitational lens determinations of H-0 in quintessence cosmologies. Monthly Notices Royal Astronomical Society, 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. Monthly Notices Royal Astronomical Society, 337, 953-966.
  • Babul, A., Balogh, M., Lewis, G., POOLE, G. (2002). Physical implications of the X-ray properties of galaxy groups and clusters. Monthly Notices Royal Astronomical Society, 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 (MNRAS Letters), 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 (MNRAS Letters), 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. Monthly Notices Royal Astronomical Society, 332, 921-927.
  • Ibata, R., Lewis, G., Irwin, M., Quinn, T. (2002). Uncovering cold dark matter halo substructure with tidal streams. Monthly Notices Royal Astronomical Society, 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, 570, 557-572.

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