Extra-mixing in red giant stars: Challenges for nuclear physics

Details Extra-mixing in red giant stars: Challenges for nuclear physics Extra-mixing in red giant stars: Challenges for nuclear physics

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010jphcs.202a2030p&link_type=abstract

Journal of Physics: Conference Series, Volume 202, Issue 1, pp. 012030 (2010).

Physics

1

Scientific paper

The existence of extra-mixing phenomena has been often invoked as a possible solution for the Li-abundance puzzle in low-mass red giant stars. In particular, [1] have shown that extra-mixing phenomena induced by stellar magnetic fields can justify the surface Li enrichment as well as its depletion in low mass giants. In the framework of this model, we test here how sensitive is the Li production to the reaction rate for the 7Be electron capture, in order to establish whether the presence of intense magnetic fields can alter the Li yield.

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