Compact and diffuse X-ray sources in the core of the Perseus cluster (Abell 426).
Abstract
Data on the X-ray structure of the Perseus cluster of galaxies in the energy range from 2 to 10 keV are analyzed which were obtained during a 12-day observation with the rotating modulation collimator aboard SAS 3. In particular, the nature of the compact X-ray source coincident with NGC 1275 is examined. The data are shown to confirm the presence of a diffuse region of X-ray emission surrounding the nucleus of NGC 1275; it is found that a model which also includes a point source at the nucleus is consistent with the data if the point contribution is no larger than 20% of the X-ray flux detected within 3 to 5 arcmin of the galaxy. The results suggest that NGC 1275 may have accreted a large amount of gas from the intracluster medium and that the flux from the possible point source is consistent with a synchro/Compton model.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- April 1978
- DOI:
- 10.1086/182661
- Bibcode:
- 1978ApJ...221L..43H
- Keywords:
-
- Galactic Clusters;
- X Ray Sources;
- Collimators;
- Compton Effect;
- Diffuse Radiation;
- Galactic Nuclei;
- High Temperature Plasmas;
- Seyfert Galaxies;
- X Ray Spectra;
- Astronomy;
- Clusters of Galaxies:X-Ray Sources;
- Galactic Nuclei:X-Ray Sources