Activity on cool stars.
Abstract
The authors examine the characteristics of solar-like activity, which is a term applied to a wide range of magnetically related phenomena occurring in the atmospheres of cool stars. The authors describe in general terms four basic types of activity: (1) active chromospheres, (2) activity in transition regions and coronae, (3) starspots, and (4) flares. Each of these phenomena are observable over nearly the entire electromagnetic spectrum, and, when possible, the authors attempt to show how data in various wavelength regions relate to one another. They then examine the stellar parameters which seem to influence the creation of activity and how the form of this activity changes as the star evolves.
- Publication:
-
Australian Journal of Astronomy
- Pub Date:
- 1986
- Bibcode:
- 1986AuJA....1..105R
- Keywords:
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- Cool Stars:Stellar Activity;
- Stellar Activity:Cool Stars