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astro-ph2001
Cosmological Parameter Estimation from CMB and X-ray clusters
M. Douspis, A. Blanchard, R. Sadat +1
We present the results of a combined analysis of cosmic microwave background (CMB) and X-ray galaxy clusters baryon fraction to deduce constraints over 6 in flationnary cosmologica…
astro-ph2001
The baryon fraction in X-Rays galaxy clusters revisited
R. Sadat, A. Blanchard, M. Douspis
One of the most direct way to constrain the matter density of the universe is to measure the baryon content in X-Rays clusters of galaxies. Typical value of the mean gas mass…
astro-ph2001
The XMM-Newton Project
J. G. Bartlett, N. Aghanim, M. Arnaud +16
The abundance of high-redshift galaxy clusters depends sensitively on the matter density $\OmM$ and, to a lesser extent, on the cosmological constant . Measurements of this abun…