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Evidence for stellar chromospheres in globular clusters

Published online by Cambridge University Press:  04 August 2017

William Liller  and
Gonzalo Alcaino
William Liller
Affiliation:
Instituto Isaac Newton, Ministerio de Educación, Casilla 8-9, Correo 9, Santiago, Chile
Gonzalo Alcaino
Affiliation:
Instituto Isaac Newton, Ministerio de Educación, Casilla 8-9, Correo 9, Santiago, Chile

Abstract

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We suggest that the conspicuous gaps frequently seen in the color-magnitude diagrams of globular clusters are caused by a sudden increase in chromospheric activity shortly after stars evolve away from the main sequence.

Type
Stellar Coronae: Chromospheres of Cool Stars
Information
Symposium - International Astronomical Union , Volume 122: Circumstellar Matter , 1987 , pp. 357 - 358
Copyright
Copyright © Reidel 1987 

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