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Chromospheres, activity and magnetic fields

Published online by Cambridge University Press:  25 May 2016

Yu. N. Gnedin
Yu. N. Gnedin*
Affiliation:
The Central Astronomical Observatory at Pulkovo, 196140, St. Petersburg, Russia

Abstract

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This brief review presents the current state of observations of stellar activity effects including the fluxes of chromospheric emission lines: CaII H+K, MgII h+k, SiII 1812 Å multiplet, CIV, as well as radio and X-ray fluxes versus B-V colours and luminosity classes, rotation periods, Rossby number and especially versus the mean magnetic flux density 〈fB〉. Results of stellar magnetic field measurements are presented.

Type
Stellar Atmospheres
Information
Symposium - International Astronomical Union , Volume 189: Fundamental Stellar Properties: The Interaction Between Observation and Theory , 1997 , pp. 245 - 252
Copyright
Copyright © Kluwer 1997 

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