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Flare stars as age indicators in open clusters

Published online by Cambridge University Press:  23 September 2016

L. Pigatto
L. Pigatto*
Affiliation:
Osservatorio Astronomico Vicolo dell'Osservatorio, 5 35122 Padova Italy

Abstract

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A new set of isochrones derived from overshooting evolutionary models, allows one to give a homogeneous age determination for open clusters with solar chemical composition and in a range of age 4 107 ÷ 1.5 109 yr. In this context is derived an empirical new age calibration - absolute magnitude of the supposed brightest flare star in a cluster versus log age -. The evolutionary implication in finding or not finding flare stars in candidate open clusters is also examined.

Type
I Flare Stars Optical Observations and Flare Statistics
Information
Symposium - International Astronomical Union , Volume 137: Flare Stars in Star Clusters, Association and Solar Vicinity , 1990 , pp. 117 - 120
Copyright
Copyright © Kluwer 1990 

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