Evidence for X-ray emission from Capella.
Abstract
X-ray emission in the range from 0.2 to 1.6 keV has been detected from an area of the sky which contains the binary star system Capella. The X-ray source is at most a few arc minutes in extent and shows no spectral turnover at low energy, consistent with a nearby source. We suggest Capella as the source of this emission and that this object belongs to a new class of galactic X-ray sources with a luminosity of 10 to the 31st to 10 to the 34th ergs per sec. Emission from this class of objects is variable, predominantly below 2 keV, and originates from nearby stellar objects.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- March 1975
- DOI:
- 10.1086/181741
- Bibcode:
- 1975ApJ...196L..47C
- Keywords:
-
- Binary Stars;
- Stellar Radiation;
- X Ray Astronomy;
- X Ray Stars;
- Energy Spectra;
- Galactic Radiation;
- Giant Stars;
- Stellar Luminosity;
- Stellar Spectra;
- Space Radiation