The coronal rotation-activity relations in late-type stars
Abstract
The author discusses Einstein X-ray observations of late-type (G and K) stars. For the RS CVn systems and the evolved G stars, there is a linear relation between X-ray surface flux and stellar angular velocity. The situation is more complex among the G-K dwarfs: rapid rotators, with rotational periods less than ≡10d, also show a linear relation between X-ray surface flux and angular velocity, but the slow rotators fall some two orders of magnitude below that relation.
- Publication:
-
Solar and Stellar Magnetic Fields: Origins and Coronal Effects
- Pub Date:
- 1983
- Bibcode:
- 1983IAUS..102..193W
- Keywords:
-
- Late Stars;
- Stellar Activity;
- Stellar Coronas;
- Stellar Rotation;
- X Ray Astronomy;
- Angular Velocity;
- Dwarf Stars;
- G Stars;
- K Stars;
- Radiant Flux Density;
- Astrophysics