Observation of periodic gamma radiation from the discrete source Cygnus X-3
Abstract
A spark-chamber telescope mounted on high-altitude balloons was used in 1972, 1974, and 1976 to measure fluxes of gamma rays of energy exceeding 40 MeV from the discrete source Cygnus X-3. The radiation was found to be variable, with a period of 0.199686 day, coinciding with the X-ray period. The detected gamma radiation is concentrated in a narrow pulse of duration less than 1 hour, which arises near the minimum of the X-ray flux. The gamma-ray luminosity of the Cygnus X-3 source is of the order of 10 to the 38th power erg/sec.
- Publication:
-
ZhETF Pisma Redaktsiiu
- Pub Date:
- September 1977
- Bibcode:
- 1977ZhPmR..26..381G
- Keywords:
-
- Cygnus Constellation;
- Gamma Ray Astronomy;
- Stellar Radiation;
- Telescopes;
- X Ray Sources;
- Balloon-Borne Instruments;
- Phase Shift;
- Photon Beams;
- Spark Chambers;
- Stellar Luminosity;
- Space Radiation