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Proceedings Paper

EPIC-XMM-Newton observations of two nearby galaxy clusters
Author(s): Ulrich G. Briel; Alexis Finoguenov; J. Patrick Henry
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Paper Abstract

The XMM-Newton observatory, with its high throughput in combination with the EPIC CCD-cameras, is an ideal instrument to study extended sources like clusters of galaxies. Very deep observations of galaxy clusters reveal substructure on different levels: structure associated with bright galaxies, faint galaxies, or structure consistent with the merger of groups with the main cluster. Another indication of substructure is the deviation of the temperature of the intra-cluster gas from isothermality. We present XMM-Newton mosaic observations of the nearby clusters A3667 and A754. These clusters are good representatives of the different evolution stages that all clusters experience as they grow from mergers of smaller groups. Hence they show merging at different phases, which is also reflected in the different appearance of their temperature maps, pressure maps and entropy maps.

Paper Details

Date Published: 11 October 2004
PDF: 9 pages
Proc. SPIE 5488, UV and Gamma-Ray Space Telescope Systems, (11 October 2004); doi: 10.1117/12.551219
Show Author Affiliations
Ulrich G. Briel, Max-Planck-Institut fur extraterrestrische Physik (Germany)
Alexis Finoguenov, Max-Planck-Institut fur extraterrestrische Physik (Germany)
J. Patrick Henry, Max-Planck-Institut fur extraterrestrische Physik (Germany)

Published in SPIE Proceedings Vol. 5488:
UV and Gamma-Ray Space Telescope Systems
Guenther Hasinger; Martin J. L. Turner, Editor(s)

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