XMM-Newton Observation of the Centaurus Cluster
Abstract
By analyzing the XMM--Newton data of the Centaurus cluster, the picture obtained by ASCA is examined and refined. The radially sorted EPIC spectra can be reproduced by a two components model with temperatures of 3.8 keV and 1.7 keV, and the derived radial profiles of volume filling factor of the cool phase and the Fe abundance are generally consistent with those measured with ASCA. At the very central region (r<12 h-175 kpc), another cool emission with a temperature of ∼ 0.7 keV is seen, which was not detected by ASCA. The isobaric cooling flow model cannot reproduce the data, because cool emission components with temperatures less than 0.5 keV are insignificant.
- Publication:
-
The Riddle of Cooling Flows in Galaxies and Clusters of galaxies
- Pub Date:
- 2004
- Bibcode:
- 2004rcfg.proc..135T