On the Determination of the Mean Cosmic Matter Density and the Amplitude of Density Fluctuations

Details On the Determination of the Mean Cosmic Matter Density and the Amplitude of Density Fluctuations On the Determination of the Mean Cosmic Matter Density and the Amplitude of Density Fluctuations

2002-07-02

arxiv.org/abs/astro-ph/0207071v1

Astronomy and Astrophysics

Astrophysics

6 pages; to be published in the Proceedings of the Conference on Matter and Energy in Clusters of Galaxies, Chung-Li (2002), e

Scientific paper

The cosmological implications from a new estimate of the local X-ray galaxy
cluster abundance are summarized. The results are then compared to independent
observations. It is suggested that `low' values for the mean cosmic matter
density and the amplitude of mass density fluctuations currently do not appear
unreasonable observationally.

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