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Physical Sciences and Mathematics Commons

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Astrophysics and Astronomy

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Clemson University

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2009

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Full-Text Articles in Physical Sciences and Mathematics

A Spectroscopic Analysis Of V505 Persei And The Origin Of The Lithium Dip, Patrick Baugh Aug 2009

A Spectroscopic Analysis Of V505 Persei And The Origin Of The Lithium Dip, Patrick Baugh

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We study the observed Li Dip in stellar clusters and field stars, testing Rotationally Induced Mixing (RIM) by measuring Li abundances in a middle-aged (1.1±0.15 Gyr), metal poor ([Fe/H]=-0.15±0.03), short period binary, V505 Per, finding Li abundances of Log N(Li)=2.67±0.1 and 2.42±0.2 from the primary and secondary components, respectively. These abundances are significantly higher than observed abundances from single stars of similar metallicity and ZAMS Teff; as shown by comparison with NGC 752, and suggest that RIM may be a primary cause of the Li Dip.