The identification of H 2311+77 with HD 220140, a probable RS CVn star.
Abstract
H2311+77, one of the bright soft X-ray sources in the sky originally detected with HEAO 1, has been identified in an EXOSAT imaging observation with a 7.7-mag late-type star, HD 220140. The X-ray luminosity and the optical characteristics of this star indicate that it is probably an RS CVn binary system.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- July 1985
- DOI:
- 10.1093/mnras/215.1.11P
- Bibcode:
- 1985MNRAS.215P..11P
- Keywords:
-
- Binary Stars;
- Late Stars;
- X Ray Sources;
- Exosat Satellite;
- Heao 1;
- Main Sequence Stars;
- Stellar Luminosity;
- Stellar Rotation;
- Astronomy