Evidence for X-ray emission from flare stars observed by ANS.
Abstract
Observations that detected the first X-ray emission from flare stars are described. An X-ray flare was detected from YZ CMi at 0.28 keV and approximately 1-7 keV, although no optical or radio coverage was available. During a very large optical flare from UV Ceti, X-ray emission at (only) 0.28 keV was detected. Upper limits for X-ray emission from several small optical flares of UV Ceti are presented. Implications for X-ray flare models, the diffuse X-ray background, and low-energy cosmic-ray flux are mentioned.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- December 1975
- DOI:
- 10.1086/181984
- Bibcode:
- 1975ApJ...202L..73H
- Keywords:
-
- Astronomical Netherlands Satellite;
- Background Radiation;
- Galactic Radiation;
- Spaceborne Astronomy;
- Stellar Radiation;
- X Ray Astronomy;
- Astronomical Models;
- Flares;
- Light Emission;
- Astrophysics