Helium and metal diffusion in the Sun and in cluster stars

Details Helium and metal diffusion in the Sun and in cluster stars Helium and metal diffusion in the Sun and in cluster stars

Jul 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010ap%26ss.328..201d&link_type=abstract

Astrophysics and Space Science, Volume 328, Issue 1-2, pp. 201-208

Astronomy and Astrophysics

Astrophysics

Stars: Evolution, Stars: Fundamental Parameters, Globular Clusters: General, The Sun: Evolution, The Sun: General

Scientific paper

In this contribution I will review the present knowledge about helium and metal diffusion efficiency in the Sun and in old cluster stars and the influence of the uncertainties still present on these mechanisms concerning the stellar characteristics in different evolutionary phases. I will also discuss the relevance of the current uncertainties on the assumed chemical composition for the main evolutionary features of population II stars.

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