Copernicus observations of Circinus X-1.
Abstract
We present Copernicus X-ray observations of Circinus X-1 made during August 1973 and April 1974. Our results confirm that the reported 12.3-day periodicity is spurious, and in addition, the data show a clear correlation between the low energy X-ray intensity and spectral slope.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- October 1975
- DOI:
- 10.1093/mnras/173.1.33P
- Bibcode:
- 1975MNRAS.173P..33D
- Keywords:
-
- Astronomical Models;
- Oao 3;
- Spaceborne Astronomy;
- Stellar Spectra;
- X Ray Astronomy;
- X Ray Sources;
- Interstellar Extinction;
- Spectrum Analysis;
- X Ray Spectra;
- Astronomy