ROSAT observations of the galaxy group AWM 7.
Abstract
We present results of ROSAT/PSPC and HRI observations of the AWM 7 group of galaxies, which is a poor galaxy cluster and forms part of the Perseus-Pisces filament. The X-ray emission originates from intracluster gas at temperatures of 1.7 to 4.5keV. The cluster obviously is elliptical with a position angle perpendicular to the position angle of the dominant elliptical galaxy NGC 1129, which is offset from the cluster X-ray centre by 30kpc. The analysis of the PSPC imaging and spectral data yield a gravitational mass of 2-5x10^14^Msun_within a radius of 1.2Mpc and a cooling flow with a mass deposition rate of up to 60-66Msun_/yr.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- September 1995
- DOI:
- 10.48550/arXiv.astro-ph/9503013
- arXiv:
- arXiv:astro-ph/9503013
- Bibcode:
- 1995A&A...301..865N
- Keywords:
-
- GALAXIES: CLUSTERS OF;
- X-RAYS: GALAXIES;
- COOLING FLOWS;
- DARK MATTER;
- GALAXIES: NGC 1129;
- AWM 7;
- Astrophysics
- E-Print:
- 8 pages, including 7 figures, uuencoded and Z-compressed postscript. Accepted for publication in A&