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Radio and X-Ray Emissions from Chemically Peculiar B- and A-Type Stars: Observations and a Model
Published online by Cambridge University Press: 12 April 2016
Abstract
Conventional wisdom holds that early-type and late-type stars have very different outer atmospheres, because the early-type stars lack deep convective zones. I argue that the magnetic chemically peculiar (CP) stars hotter than about spectral type A2 display many of the activity phenomena seen in the most active late-type stars. In particular, many CP stars are luminous nonthermal radio and coronal x-ray sources like the RS CVn systems. A wind-fed magnetosphere model has been proposed to explain both the nonthermal radio and the x-ray emission. In this model the stellar wind plays the role of a mechanical energy source analogous to the role played by convection in the active late-type stars.
- Type
- VI. Magneto-Hydrodynamical Phenomena in CP Stars
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- Copyright © Astronomical Society of the Pacific 1993
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