107 citations · 458 across the 25 of their papers we have counts for
7 papers · 1 filter
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…
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…
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…
The baryon fraction distribution in X-rays galaxy clusters
R. Sadat, A. Blanchard
The baryon fraction in galaxy clusters is one of the most direct way to constrain $\omo$. The baryonic fraction is estimated to be in the range fb = (0.15 - 0 .20) h^{-3/2} which i…
Cosmology from Cosmic Microwave Background and Galaxy Clusters
M. Douspis, A. Blanchard, R. Sadat +2
We present the results of analysis of constraints on cosmological parameters from cosmic microwave background (CMB) alone and in combination with galaxy cluster baryon fraction ass…
New Light on the Baryon Fraction in Galaxy Clusters
R. Sadat, A. Blanchard
Baryon fraction in clusters, combined with constraints from primordial nucleosynthesis is currently used to provide a robust upper limit on the cosmological density parameter …