Light Propagation in inhomogeneous Universes

Details Light Propagation in inhomogeneous Universes Light Propagation in inhomogeneous Universes

1998-07-13

arxiv.org/abs/astro-ph/9807127v1

Astronomy and Astrophysics

Astrophysics

2 pages, gzip'ed tar file, including Latex source file, and style files. To be published in the proceedings of the Tokyo confe

Scientific paper

Using a multi-plane lensing method that we have developed, we follow the evolution of light beams as they propagate through inhomogeneous universes. We use a P3M code to simulate the formation and evolution of large-scale structure. The resolution of the simulations is increased to sub-Megaparsec scales by using a Monte Carlo method to locate galaxies inside the computational volume according to the underlying particle distribution. We consider cold dark matter models normalized to COBE, and perform a large parameter survey by varying the cosmological parameters Omega_0, lambda_0, H_0, and n (the tilt of the primordial power spectrum).

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