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Spectroscopic Studies of Extremely Metal-poor Stars with the Subaru High-Dispersion Spectrograph. IV. The α-Element-Enhanced Metal-poor Star BS 16934-002

Aoki, Wako; Honda, Satoshi; Beers, Timothy C; Takada-Hidai, Masahide; Iwamoto, Nobuyuki; Tominaga, Nozomu; Umeda, Hideyuki; Nomoto, Ken'ichi; Norris, John; Ryan, Sean G

Description

A detailed elemental abundance analysis has been carried out for the very metal-poor ([Fe/H] = -2.7) star BS 16934-002, which was identified in our previous work as a star exhibiting large overabundances of Mg and Sc. A comparison of the abundance pattern of this star with that of the well-studied metal-poor star HD 122563 indicates excesses of O, Na, Mg, Al, and Sc in BS 16934-002. Of particular interest, no excess of C or N is found in this object, in contrast to CS 22949-037 and CS...[Show more]

CollectionsANU Research Publications
Date published: 2007
Type: Journal article
URI: http://hdl.handle.net/1885/24073
Source: Astrophysical Journal, The
DOI: 10.1086/512601

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