Thermohaline mixing in stars and the long-standing 3He problem

Details Thermohaline mixing in stars and the long-standing 3He problem Thermohaline mixing in stars and the long-standing 3He problem

Mar 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010iaus..265..205c&link_type=abstract

Chemical Abundances in the Universe: Connecting First Stars to Planets, Proceedings of the International Astronomical Union, IAU

Astronomy and Astrophysics

Astronomy

Hydrodynamics, Instabilities, Stars: Abundances, Evolution, Rotation, Galaxy: Abundances

Scientific paper

Thermohaline mixing has been recently identified as the dominating process that governs the photospheric composition of low-mass bright giant stars (Charbonnel & Zahn 2007). Here we present the predictions of stellar models computed with the code STAREVOL taking into account this mechanism together with rotational mixing and atomic diffusion. We compare our theorical predictions with recent observations and discuss how the corresponding yields for 3He are compatible with the observed behaviour of this light element in our Galaxy.

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