Dr Krzysztof Bolejko

H90 - Physics Decant Redfern
The University of Sydney

Telephone +61 2 9114 2168
Fax +61 2 9351 7726

Website My personal website
My Google Scholar profile
My book on inhomogeneous models

Research interests

I am a cosmologist interested in non-linear aspects of the evolution of the Universe and light propagation effects. My work focuses on tracing signatures of structures in the Universe, and studying how they affect cosmological observations.

Observing the Universe is like looking through a tank of water. In both cases observed images are distorted. In both cases the amplitude of distortions can be used to measure properties of the medium – for example an image of an object located behind a transparent tank full of water will be different when the water's temperature is of 95°C than in the case when it is 5°C. Similarly, an image of a distant galaxy varies depending if its light rays have passed close to a large cluster of galaxies or if its light rays traversed through a cosmic void

In my work, I look for all kinds of distortions in images of far away objects, and by analysing these distortions I can study properties of our Universe.

Current projects


Possible student projects include

  • Light propagation effects in the inhomogeneous Universe

  • Measuring the mass of cosmic voids

  • Evolution of dark energy

  • The onset of inflation

  • Interacting dark matter

If you are interested in one of those topic, please send me an email and I will be more than happy to give you more details.

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Selected grants

2015

  • General relativistic light propagation effects: new insight into cosmic voids, dark matter, dark energy, and Einsteins theory of gravity.; Bolejko K; Australian Research Council (ARC)/Future Fellowships (FT).

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.

Selected publications

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Journals

  • Bacon, D., Andrianomena, S., Clarkson, C., Bolejko, K., Maartens, R. (2014). Cosmology with Doppler lensing. Royal Astronomical Society. Monthly Notices, 443(3), 1900-1915. [More Information]
  • Avelino, P., Bolejko, K., Lewis, G. (2014). Nonlinear Chaplygin gas cosmologies. Physical Review D, 89(10), 103004-1-103004-6. [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, 1-17. [More Information]
  • Bolejko, K., Clarkson, C., Maartens, R., Bacon, D., Meures, N., Beynon, E. (2013). Antilensing: The Bright Side of Voids. Physical Review Letters, 110, 1-5. [More Information]
  • Krasinski, A., Bolejko, K. (2013). Exact inhomogeneous models and the drift of light rays induced by nonsymmetric flow of the cosmic medium. International Journal Of Modern Physics D: gravitation, astrophysics and cosmology, 22(6), 1-14. [More Information]
  • Bolejko, K., Stoeger, W. (2013). Intermediate homogenization of the Universe and the problem of gravitational entropy. Physical Review D, 88(6), 1-8. [More Information]
  • Krasinski, A., Bolejko, K. (2012). Geometry of the quasihyperbolic Szekeres models. Physical Review D, 86(10), 1-19. [More Information]

Conferences

  • Bolejko, K. (2013). Redshift and distance in the inhomogeneous universe. 9th Mexican School on Gravitation and Mathematical Physics: Cosmology for the 21st Century, Melville: American Institute of Physics (AIP). [More Information]

2014

  • Bacon, D., Andrianomena, S., Clarkson, C., Bolejko, K., Maartens, R. (2014). Cosmology with Doppler lensing. Royal Astronomical Society. Monthly Notices, 443(3), 1900-1915. [More Information]
  • Avelino, P., Bolejko, K., Lewis, G. (2014). Nonlinear Chaplygin gas cosmologies. Physical Review D, 89(10), 103004-1-103004-6. [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, 1-17. [More Information]

2013

  • Bolejko, K., Clarkson, C., Maartens, R., Bacon, D., Meures, N., Beynon, E. (2013). Antilensing: The Bright Side of Voids. Physical Review Letters, 110, 1-5. [More Information]
  • Krasinski, A., Bolejko, K. (2013). Exact inhomogeneous models and the drift of light rays induced by nonsymmetric flow of the cosmic medium. International Journal Of Modern Physics D: gravitation, astrophysics and cosmology, 22(6), 1-14. [More Information]
  • Bolejko, K., Stoeger, W. (2013). Intermediate homogenization of the Universe and the problem of gravitational entropy. Physical Review D, 88(6), 1-8. [More Information]
  • Bolejko, K. (2013). Redshift and distance in the inhomogeneous universe. 9th Mexican School on Gravitation and Mathematical Physics: Cosmology for the 21st Century, Melville: American Institute of Physics (AIP). [More Information]

2012

  • Krasinski, A., Bolejko, K. (2012). Geometry of the quasihyperbolic Szekeres models. Physical Review D, 86(10), 1-19. [More Information]

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