Cosmological implications of galaxy clusters: best-fit models

Details Cosmological implications of galaxy clusters: best-fit models Cosmological implications of galaxy clusters: best-fit models

2001-09-03

arxiv.org/abs/astro-ph/0109025v1

Astronomy and Astrophysics

Astrophysics

9 pages, 2 figures included, to be appear in Proceedings of "Galaxy clusters and the high redshift Universe observed in X-rays

Scientific paper

The galaxy cluster power spectrum and mass/temperature functions are currently the most precise observational tools for constraining the theory of the formation of large scale structure (LSS) in the Universe. Complementing these tests by the observational data at larger (cosmic microwave backgroud anisortopy (CMBA)) and smaller (distribution of $Ly_\alpha$ clouds) scales opens the way to a straightforward determination of the cosmological parameters in simplest dark matter (DM) models. We argue that such a 'minimal data set' is free from systematic effects and can indicate quite precisely the parameters of spatially flat mixed DM model with a positive cosmological constant and no cosmic gravitational waves.

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