Galaxy groups and poor clusters are more common than rich clusters, and host the largest
fraction of matter content in the Universe. Hence, their studies are key to understand the …

▪ Abstract ROSAT observations indicate that approximately half of all nearby groups of
galaxies contain spatially extended X-ray emission. The radial extent of the X-ray emission …

We present a catalog of 4195 optically confirmed Sunyaev–Zel'dovich (SZ) selected galaxy
clusters detected with signal-to-noise ratio> 4 in 13,211 deg 2 of sky surveyed by the …

We present gas and total mass profiles for 13 low-redshift, relaxed clusters spanning a
temperature range 0.7-9 keV, derived from all available Chandra data of sufficient quality. In …

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 …

We describe the design and current status of a new X-ray cluster survey aimed at the
compilation of a statistically complete sample of very X-ray luminous (and thus, by inference …

We present a comparison of X-ray proxies for the total cluster mass, M 500, including the
spectral temperature (TX), gas mass measured within r 500 (M g, 500), and the new proxy …

As part of a research program exploring how and why dwarf elliptical (dE) galaxies depart
from the fundamental plane defined by luminous elliptical (E) galaxies, we have analyzed …

In the construction of an X-ray–selected sample of galaxy clusters for cosmological studies,
we have assembled a sample of 495 X-ray sources found to show extended X-ray emission …

X-ray observations of galaxy clusters potentially provide powerful cosmological probes if
systematics due to our incomplete knowledge of the ICM physics is understood and …