Upper limits of hard gamma-ray emission from six X-ray sources.
Abstract
The Cornell 100-inch gamma-ray telescope has been used to set upper limits for the gamma-ray flux above 400 MeV from the X-ray sources Cyg X-1, Cyg X-2, Cyg X-3, Cas A, Cas B, and Per X-1. An upper limit for the diffuse flux of the galactic disk was set which is consistent with OSO-3 and SAS-2 data. A new measurement of the atmospheric gamma-ray generation rate is presented.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- March 1975
- DOI:
- 10.1086/153441
- Bibcode:
- 1975ApJ...196..593C
- Keywords:
-
- Balloon-Borne Instruments;
- Extremum Values;
- Gamma Rays;
- X Ray Sources;
- Balloon Flight;
- Cerenkov Counters;
- Photomultiplier Tubes;
- Radiant Flux Density;
- Satellite Observation;
- Spaceborne Astronomy;
- Telescopes;
- X Ray Astronomy;
- Astronomy