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Magnetic activity and evolution of low-mass young stars

Published online by Cambridge University Press:  23 September 2016

Thierry Montmerle
Thierry Montmerle*
Affiliation:
Service d'Astrophysique, Centre d'Etudes Nucléaires de Saclay 91191 Gif-sur-Yvette, France

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X-rays turned out rather unexpectedly to be of fundamental importance in studying, and especially in discovering, pre-main sequence stars. The bulk of the data we now have comes from observations using the Einstein satellite, operating in the imaging mode between ~0.4 to ~4 keV (for reviews, see, e.g., Feigelson 1984, Feigelson, Giampapa, and Vrba 1990); because many of the detected sources turned out to suffer a relatively large absorption (Av up to several magnitudes, see below), EXOSAT, sensitive to softer X rays, unfortunately proved to be of little use.

Type
IV Theoretical Problems and Interpretation of Observations
Information
Symposium - International Astronomical Union , Volume 137: Flare Stars in Star Clusters, Association and Solar Vicinity , 1990 , pp. 363 - 370
Copyright
Copyright © Kluwer 1990 

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