EPIC-XMM-Newton observations of two nearby galaxy clusters

Ulrich G. Briel; Alexis Finoguenov; J. Patrick Henry

doi:10.1117/12.551219

11 October 2004 EPIC-XMM-Newton observations of two nearby galaxy clusters

Ulrich G. Briel, Alexis Finoguenov, J. Patrick Henry

Proceedings Volume 5488, UV and Gamma-Ray Space Telescope Systems; (2004) https://doi.org/10.1117/12.551219
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

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.

Citation Download Citation

Ulrich G. Briel, Alexis Finoguenov, and J. Patrick Henry "EPIC-XMM-Newton observations of two nearby galaxy clusters", Proc. SPIE 5488, UV and Gamma-Ray Space Telescope Systems, (11 October 2004); https://doi.org/10.1117/12.551219

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