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Chandra Observations of M31 and their Implications for its ISM
F. Primini, M. Garcia, S. Murray +3
We have been regularly observing the bulge and inner disk of M31 for nearly 1 year, using both the HRC-I and ACIS-I instruments on the Chandra X-Ray Observatory. We present results…
A High Resolution Study of the Hydra A Cluster with Chandra: Comparison of the Core Mass Distribution with Theoretical Predictions and Evidence for Feedback in the Cooling Flow
L. P. David, P. E. J. Nulsen, B. R. McNamara +5
The cooling flow cluster Hydra A was observed during the orbital activation and calibration phase of the Chandra Observatory. While the X-ray image of the cluster exhibits complex…
Chandra study of an overdensity of X-ray sources around two distant (z~0.5) clusters
M. Cappi, P. Mazzotta, M. Elvis +21
We present results from a Chandra X-ray Observatory study of the field X-ray source populations in 4 different observations: two high-redshift (z~0.5) clusters of galaxies 3C295 an…
Mass-to-Light Ratios of Groups and Clusters of Galaxies
V. Hradecky, C. Jones, R. H. Donnelly +3
We constrain the mass-to-light ratios, gas mass fractions, baryon mass fractions and the ratios of total to luminous mass for a sample of eight nearby relaxed galaxy groups and clu…
Evolution of the cluster X-ray luminosity function from the WARPS survey
L. R. Jones, H. Ebeling, C. Scharf +5
The evolution of the X-ray luminosity function of clusters of galaxies has been measured to z=0.85 using over 150 X-ray selected clusters found in the WARPS survey. We find no evid…
Chandra Observation of Abell 2142: Survival of Dense Subcluster Cores in a Merger
M. Markevitch, T. J. Ponman, P. E. J. Nulsen +19
We use Chandra data to map the gas temperature in the central region of the merging cluster A2142. The cluster is markedly nonisothermal; it appears that the central cooling flow h…