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The Coronal Rotation-Activity Relations in Late-Type Stars
Published online by Cambridge University Press: 04 August 2017
Abstract
I discuss 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.
- Type
- II. Rotation — Activity — Cycle — Age Connection: Observations
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- Copyright © Reidel 1983