X-ray observations of the variability of Cygnus X-1 in the high state.
Abstract
The ESA COS-B satellite has observed the Cygnus region in the energy range 2-12 keV, between November 28 and December 24, 1975. The Cygnus X-1 X-ray light curve for this period, during which the source appears to be in the high state, is reported; a search for a possible attenuation of the X-ray emission at the superior conjunction brings to the conclusion that the evidence for the existence of such a feature is dubious.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- January 1978
- Bibcode:
- 1978A&A....62..265M
- Keywords:
-
- Cos-B Satellite;
- Light Curve;
- Spaceborne Astronomy;
- Variable Stars;
- X Ray Sources;
- Ariel Satellites;
- Satellite-Borne Instruments;
- Astrophysics;
- Light Curves:X-Ray Sources;
- X-Ray Sources: Variations