The oxygen abundance of the ultra-metal-poor star HE 0557-4840
Date
2012
Authors
Norris, John
Christlieb, N
Bessell, Michael
Asplund, Martin
Eriksson, K.
Korn, A. J.
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Volume Title
Publisher
IOP Publishing
Abstract
We present a high-resolution ultraviolet (UV) spectrum of the ultra-metal-poor (UMP) carbon-enhanced red giant HE 0557-4840 (Teff/log g/[Fe/H] = 4900/2.2/-4.8). Combining these data with earlier observations, the radial velocity is 212.0 ± 0.4kms-1, with
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Keywords
Keywords: early universe; Galaxy: formation; Galaxy: halo; nuclear reactions, nucleosynthesis, abundances; stars: abundances; stars: individual (HE 0557-4840)
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Source
Astrophysical Journal, The
Type
Journal article
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Open Access
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Restricted until
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