Testing Homogeneity on Large Scales
摘要
We review observational tests for the homogeneity of the Universe on large scales. Redshift and peculiar velocity surveys, radio sources, the X-Ray Background, the Lyman-alpha forest and the Cosmic Microwave Background are used to set constraints on inhomogeneous models and in particular on fractal-like models. Assuming the Cosmological Principle and the FRW metric, we estimate cosmological parameters by joint analysis of peculiar velocities, the CMB, cluster abundance, IRAS and Supernovae. Under certain assumptions the best fit density parameter is Omega_m = 1 - lambda = 0.3-0.5.
引用
@article{arxiv.astro-ph/9911059,
title = {Testing Homogeneity on Large Scales},
author = {Ofer Lahav},
journal= {arXiv preprint arXiv:astro-ph/9911059},
year = {2016}
}
备注
Review talk, to appear in the proceedings of the Cosmic Flows Workshop, Victoria, Canada, July 1999, ed. S. Courteau, M. Strauss & J. Willick, ASP series 13 pages Latex, with 5 embedded figures. Uses paspconf.sty