Title of article
The XMM- (omega) project - II. Cosmological implications from the high redshift L - T relation of X-ray clusters
Author/Authors
Nevalainen، Timo J. نويسنده , , Boer، J. A. M. de نويسنده , , Blanchard، A. نويسنده , , Bartlett، J. G. نويسنده , , Bernard، J.-P. نويسنده , , Giard، M. نويسنده , , Vauclair، S. C. نويسنده , , Sadat، R. نويسنده , , Lumb، D. H. نويسنده , , Marty، P. نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2003
Pages
-36
From page
37
To page
0
Abstract
Clusters of galaxies contain a fair sample of the universal baryonic mass fraction. A combined analysis of the intracluster medium (ICM) within their hydrostatic regions, as derived from both Sunyaev-Zeldovich effect (SZE) measurements and X-ray images, makes it possible to constrain the cosmological parameters. We consider both gas fraction estimates and angular diameter distance measurements. Adopting median statistics, we find, at the 2-(sigma) level, the pressureless matter density, (omega) MO, to be between 0.30 and 0.40 and the Hubble constant, H0, between 44 and 66 km s-1 Mpc-1.
Keywords
cosmology , cosmological parameters , Dark matter , Clusters , galaxies , general
Journal title
Astronomy and Astrophysics
Serial Year
2003
Journal title
Astronomy and Astrophysics
Record number
77336
Link To Document