Observations of intense X-ray bursts from Cyg X-1.
Abstract
During observations of Cyg X-1 with the X-ray telescope-spectrometer on board the Salyut-4 station, 19 intense bursts of X-ray emission were detected within 5 min on July 22, 1975. The flux in the bursts increased from 3 to 20 times. The burst spectrum may be fitted by a power law with kT values ranging from less than 1 keV to 4 keV and a hydrogen column density exceeding 10 to the 23rd power atoms/sq cm.
- Publication:
-
Pisma v Astronomicheskii Zhurnal
- Pub Date:
- May 1976
- Bibcode:
- 1976PAZh....2..235K
- Keywords:
-
- Binary Stars;
- Spaceborne Astronomy;
- X Ray Sources;
- Black Holes (Astronomy);
- Bremsstrahlung;
- Energy Spectra;
- Salyut Space Station;
- X Ray Spectra;
- Astrophysics