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A Mosaic of the Coma Cluster of Galaxies with XMM-Newton
Ulrich G. Briel, J. Patrick Henry, David H. Lumb +7
The Coma cluster of galaxies was observed with XMM-Newton in 12 partially overlapping pointings. We present here the resulting X-ray map in different energy bands and discuss the l…
XMM- Newton Observation of the Coma Galaxy Cluster: The temperature structure in the central region
M. Arnaud, N. Aghanim, R. Gastaud +8
We present a temperature map and a temperature profile of the central part (r < 20' or 1/4 virial radius) of the Coma cluster. We combined 5 overlapping pointings made with XMM/EPI…
The NGC4839 group falling into the Coma cluster observed by XMM-Newton
D. M. Neumann, M. Arnaud, R. Gastaud +7
We present here the first analysis of the XMM Newton EPIC-MOS data of the galaxy group around NGC4839, which lies at a projected distance to the Coma cluster center of 1.6Mpc. In o…
Using the COBE/DMR data as a test-bed for normality assessments
N. Aghanim, O. Forni, F. R. Bouchet
A very important property of a statistical distribution is to know whether it obeys Gaussian statistics or not. On the one hand, it is of paramount importance in the context of CMB…
Sunyaev-Zel'dovich constraints from black hole-seeded proto-galaxies
N. Aghanim, C. Balland, J. Silk
Recent studies of galactic nuclei suggest that most galaxies are seeded by super-massive black holes which power the central nucleus. In this picture, the proto-galactic object is…