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A Flux Limited Atlas of Galaxy Cluster Temperature Maps
R. Hank Donnelly, C. Jones, W. Forman +2
An atlas of gas temperature maps is presented for a flux limited catalog of galaxy clusters. The sample of clusters is based on the Edge et al. (1990) sample, with the inclusion of…
XMM-Newton Observations of the Perseus Cluster II: Evidence for Gas Motions in the Core
E. Churazov, W. Forman, C. Jones +2
The 5-9 keV spectrum of the inner ~100 kpc of the Perseus cluster measured by XMM-Newton can be well described by an optically thin plasma emission model as predicted by the APEC c…
Direct constraints on the dark matter self-interaction cross-section from the merging galaxy cluster 1E0657-56
M. Markevitch, A. H. Gonzalez, D. Clowe +6
We compare new maps of the hot gas, dark matter, and galaxies for 1E0657-56, a cluster with a rare, high-velocity merger occurring nearly in the plane of the sky. The X-ray observa…
Ram pressure stripping and the formation of cold fronts
S. Heinz, E. Churazov, W. Forman +2
Chandra and XMM-Newton observations of many clusters reveal sharp discontinuities in the surface brightness, which, unlike shocks, have lower gas temperature on the X-ray brighter…
CHANDRA observations of the NGC 1550 galaxy group -- implication for the temperature and entropy profiles of 1 keV galaxy groups
M. Sun, W. Forman, A. Vikhlinin +3
We present a detailed \chandra study of the galaxy group NGC 1550. For its temperature (1.370.01 keV) and velocity dispersion ( 300 km s), the NGC 1550 group is o…
An Unusual Discontinuity in the X-ray Surface Brightness Profile of NGC 507: Evidence of an Abundance Gradient?
R. P. Kraft, W. R. Forman, E. Churazov +6
We present results from a 45 ks Chandra/ACIS-I observation of the nearby () NGC 507 group. The X-ray surface brightness profile of the outer region of the group is well…