Young solar-type stars evolution: the lithium depletion issue

Details Young solar-type stars evolution: the lithium depletion issue Young solar-type stars evolution: the lithium depletion issue

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001sf2a.conf..139p&link_type=abstract

Abstracts from SF2A-2001: Semaine de l'Astrophysique Francaise, meeting held in Lyon, France, May 28-June 1st, 2001, Eds.: F. Co

Astronomy and Astrophysics

Astrophysics

Scientific paper

Asterosismology and light elements surface abundances allow direct insight of stellar structure. This talk presents the role of varying phenomena on the evolution of lithium surface abundance during solar-like pre-main sequence. Discrepancy between evolutionary models and young open cluters suggests that the development of the radiative core during this phase is badly understood. We discuss our results regarding the impact of microscopic phenomena related to opacities and therefore to metal fractions or macroscopic phenomena: accretion and rotation. Then we will address possible impact of protostellar collapse on present problem.

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