The role of non-gray model atmospheres in the evolution of low mass metal poor stars.

Details The role of non-gray model atmospheres in the evolution of low mass metal poor stars. The role of non-gray model atmospheres in the evolution of low mass metal poor stars.

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aspc..353...83h&link_type=abstract

Stellar Evolution at Low Metallicity: Mass Loss, Explosions, Cosmology ASP Conference Series, Vol. 353, Proceedings of the Confe

Physics

3

Scientific paper

Gray model atmospheres are generally considered a reasonable approximation to make upon stars of mass greater than about 0.6 M_&sun;. Here we show that non-gray atmospheres can significantly affect evolutionary models, with masses up to 0.9 M_&sun;. The effect of including a non-gray atmosphere is strongest in the pre-main and post-main Sequence. This may have implications for the ages of the oldest globular clusters.

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