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Metal-poor Lithium-rich Giants in the Radial Velocity Experiment Survey

Ruchti, Gregory R; Fulbright, J.P.; Wyse, Rosemary F G; Gilmore, Gerard; Grebel, E.; Bienayme, O; Bland-Hawthorn, Joss; Freeman, Kenneth; Gibson, Bradley K; Munari, U; Navarro, J F; Parker, Quentin A

Description

We report the discovery of eight lithium-rich field giants found in a high-resolution spectroscopic sample of over 700 metal-poor stars ([Fe/H] < -0.5) selected from the Radial Velocity Experiment survey. The majority of the Li-rich giants in our sample are very metal-poor ([Fe/H] ≲ -1.9), and have a Li abundance (in the form of7Li), A(Li) = log (n(Li)/n(H)) + 12, between 2.30 and 3.63, well above the typical upper red giant branch (RGB) limit, A(Li) < 0.5, while two stars, with A(Li)∼1.7-1.8,...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
URI: http://hdl.handle.net/1885/50074
Source: Astrophysical Journal, The
DOI: 10.1088/0004-637X/743/2/107

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