X-ray clusters of galaxies: correlation of X-ray luminosity with galactic content.
Abstract
All 14 X-ray clusters of galaxies detected by the Ariel 5 satellite at high galactic latitudes with redshifts of less than 0.05 are analyzed optically for galaxy content. A strong correlation is found between cluster X-ray luminosity and galaxy type: the fraction of spiral galaxies in a cluster decreases rapidly with increasing X-ray luminosity. The observed correlation is consistent with a combined model of thermal bremsstrahlung emission from a hot intracluster gas and stripping of the spiral galaxies caused by the ram pressure of the same intracluster gas.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- December 1977
- DOI:
- 10.1086/182583
- Bibcode:
- 1977ApJ...218L..93B
- Keywords:
-
- Cosmic Gases;
- Galactic Clusters;
- Intergalactic Media;
- Spiral Galaxies;
- X Ray Sources;
- Ariel 5 Satellite;
- Galactic Structure;
- Luminosity;
- Astrophysics