Comprehensive analytic formulae for stellar evolution as a function of mass and metallicity

Details Comprehensive analytic formulae for stellar evolution as a function of mass and metallicity Comprehensive analytic formulae for stellar evolution as a function of mass and metallicity

2000-01-17

arxiv.org/abs/astro-ph/0001295v1

Mon.Not.Roy.Astron.Soc.315:543,2000

Astronomy and Astrophysics

Astrophysics

29 pages, 20 figures, submitted for publication in MNRAS

Scientific paper

10.1046/j.1365-8711.2000.03426.x

We present analytic formulae that approximate the evolution of stars for a wide range of mass and metallicity. Stellar luminosity, radius and core mass are given as a function of age, M and Z, for all phases from the zero-age main-sequence up to, and including, the remnant stages. For the most part we find continuous formulae accurate to within 5% of detailed models. These formulae are useful for purposes such as population synthesis that require very rapid but accurate evaluation of stellar properties, and in particular for use in combination with N-body codes. We describe a mass loss prescription that can be used with these formulae and investigate the resulting stellar remnant distribution.

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