A Search For More Super-Li Rich Stars in the Open Cluster NGC 6633

Details A Search For More Super-Li Rich Stars in the Open Cluster NGC 6633 A Search For More Super-Li Rich Stars in the Open Cluster NGC 6633

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21545510j&link_type=abstract

American Astronomical Society, AAS Meeting #215, #455.10; Bulletin of the American Astronomical Society, Vol. 42, p.474

Astronomy and Astrophysics

Astronomy

Scientific paper

We present high-resolution WIYN/Hydra spectroscopic data of A dwarfs in the open cluster NGC 6633, and the results of a search for stars exhibiting a super-high surface Li abundance. We have previously discovered such a star in this cluster whose surface Li has been enhanced by a factor of twenty above the presumed initial abundance. Proposed causes for the enhanced Li abundance in this star include infall of planetessimals and diffusion of Li into the surface convection zone from below. Additional examples of super-Li-rich stars could help distinguish between these scenarios.

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