High Redshift X-ray Clusters and ${\Omega }_0$

Abstract

X-ray clusters are powerful tools for the determination of cosmological parameters. More specifically, the combined knowledge of the redshift distribution of X-ray clusters together with the luminosity-temperature correlation, $L_X-T_X$ provides us a new test for constraining the mean density of the universe ${\Omega }_0$. After a brief description of this test, I will present the result of our first attempt to apply this test to current X-ray data.

4 pages, Latex, 2 figures, to appear in the Proceedings on : The non-sleeping Universe, ed. T. Lago, A. Blanchard, Astronomy and Space Science (special issue) held in Porto, Nov. 1997

References in corpus (2)

• Constraining Omega with Cluster Evolution
• Redshift Evolution of Galaxy Cluster Densities