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Relations between coronal and chromospheric activity diagnostics in T Tauri stars

Published online by Cambridge University Press:  04 August 2017

J. Bouvier
J. Bouvier*
Affiliation:
Institut d'Astrophysique de Paris 98 bis Boulevard Arago 75014 PARIS, FRANCE

Abstract

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The study of the relationships between various activity diagnostics in T Tauri stars (TTS) suggests that the CaII K, MgII k and H∝ lines are formed in a similar region of TTS' atmosphere. For the more active TTS, an extended circumstellar region seems to be the major source of the emission, whereas a solar-type atmosphere alone may be able to account for the emission spectrum of low-activity TTS.

Type
Stellar Coronae: Chromospheres of Cool Stars
Information
Symposium - International Astronomical Union , Volume 122: Circumstellar Matter , 1987 , pp. 369 - 372
Copyright
Copyright © Reidel 1987 

References

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