OSSE Search for High-Energy X-Ray Emission from the Coma Cluster
Abstract
Nonthermal emission of high-energy X-rays from the Coma Cluster is predicted from the presence of diffuse intracluster radio synchrotron emission. We have observed the Coma Cluster with the OSSE experiment, onboard the Compton Gamma-Ray Observatory, for a total on-source time of 4.4 days. No significant emission was detected. The flux upper limit, combined with the known radio flux, leads to a lower limit of ~1 x 10^- 7^ G on the mean intracluster magnetic field in the central region of the Coma Cluster.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- July 1994
- DOI:
- 10.1086/174343
- Bibcode:
- 1994ApJ...429..554R
- Keywords:
-
- Comets;
- Cosmology;
- Fluxes;
- Galactic Clusters;
- Intergalactic Media;
- Magnetic Fields;
- Nonthermal Radiation;
- Photons;
- X Rays;
- Background Noise;
- Confidence Limits;
- Gamma Ray Observatory;
- Onboard Equipment;
- Subtraction;
- X Ray Detectors;
- Astrophysics;
- GALAXIES: CLUSTERS: INDIVIDUAL NAME: COMA;
- GALAXIES: INTERGALACTIC MEDIUM;
- MAGNETIC FIELDS;
- RADIATION MECHANISMS: NONTHERMAL;
- X-RAYS: GALAXIES