Abundances in scarcely evolved stars in globular clusters

Details Abundances in scarcely evolved stars in globular clusters Abundances in scarcely evolved stars in globular clusters

Jan 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005hia....13..149g&link_type=abstract

In: Highlights of Astronomy, Vol. 13, as presented at the XXVth General Assembly of the IAU - 2003 [Sydney, Australia, 13 - 26 J

Astronomy and Astrophysics

Astronomy

Globular Clusters, Element Abundances

Scientific paper

Abundances for stars on the main sequence and early subgiant branch (i.e. less evolved than the RHB bump) in globular clusters are reviewed. Emphasis is given to those elements that are involved into the Na-O and Mg-Al anticorrelation. Results obtained in the last few years cleared that very deep mixing (if any) cannot be the only cause of the abundance anomalies found in globular cluster stars. The new scenarios calling for pollution by material processed in an earlier generation of stars are briefly presented; the issues related to the lithium abundances are discussed.

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