English

X-ray analysis of Abell 2634 and its central galaxy 3C465

Astrophysics 2007-05-23 v1

Abstract

An analysis of a ROSAT/PSPC observation of the galaxy cluster A2634 is presented. The cluster has a luminosity of 7.9±0.1×10437.9\pm0.1\times10^{43}erg/s in the ROSAT band (0.1-2.4 keV). The temperature profile decreases from about 3 keV in the outer parts to 1.2 keV in the centre. Within a radius of 1.5 Mpc the gas mass of the cluster is 0.51×1014\msol\times 10^{14}\msol and the total mass amounts to 4.11.8+2.6×1014\msol4.1^{+2.6}_{-1.8}\times 10^{14}\msol. The X-ray morphology shows two peculiar features -- a strongly peaked emission in the centre and an excess emission in the south-west. The central emission probably originates from a weak cooling flow, the SW emission is possibly associated with higher density regions in pressure equilibrium with the intra-cluster medium. This region of excess emission is somewhat embraced by the wide-angle radio tails associated with 3C465 suggesting that the overpressure of the relativistic particles has displaced the thermal gas.

Keywords

Cite

@article{arxiv.astro-ph/9706239,
  title  = {X-ray analysis of Abell 2634 and its central galaxy 3C465},
  author = {Sabine Schindler and M. Almudena Prieto},
  journal= {arXiv preprint arXiv:astro-ph/9706239},
  year   = {2007}
}

Comments

11 pages, including 11 figures, accepted for publication in A&A