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Chandra Cluster Cosmology Project III: Cosmological Parameter Constraints
A. Vikhlinin, A. V. Kravtsov, R. A. Burenin +8
Chandra observations of large samples of galaxy clusters detected in X-rays by ROSAT provide a new, robust determination of the cluster mass functions at low and high redshifts. St…
Chandra Cluster Cosmology Project II: Samples and X-ray Data Reduction
A. Vikhlinin, R. A. Burenin, H. Ebeling +8
We discuss the measurements of the galaxy cluster mass functions at z=~0.05 and z=~0.5 using high-quality Chandra observations of samples derived from the ROSAT PSPC All-Sky and 40…
X-ray Observations of Optically Selected Giant Elliptical-Dominated Galaxy Groups
Alexey Voevodkin, Christopher J. Miller, Konstantin Borozdin +4
We present a combined optical and X-ray analysis of three optically selected X-ray bright groups with giant elliptical galaxies in the center. These massive ellipticals were target…
Constraining amplitude and slope of the mass fluctuation spectrum using cluster baryon mass function
A. Voevodkin, A. Vikhlinin
We derive the baryon mass function for a complete sample of low-redshift clusters and argue that it is an excellent proxy for the total mass function if the ratio f_b=M_b/M_tot in…
Cosmological constraints from evolution of cluster baryon mass function at z~0.5
A. Vikhlinin, A. Voevodkin, C. R. Mullis +8
We present a new method for deriving cosmological constraints based on the evolution of the baryon mass function of galaxy clusters, and implement it using 17 distant clusters from…