Elemental abundance analyses with DAO spectrograms XXXVII. The normal A0 IV star γ Geminorum

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1086/680998
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  1. National Research Council Canada. National Science Infrastructure
FormatText
TypeArticle
Journal titlePublications of the Astronomical Society of the Pacific
ISSN0004-6280
Volume127
Issue950
Pages340–346; # of pages: 7
Abstract
We performed a fine analysis of the normal sharp-lined A0 IV star γ Geminorum with spectra having signal-to-noise ratios at the continuum of 500–1200 that were consistent with previous studies of this series. Our spectra have wavelength ranges of λλ3829–4730, 4873–4931, 4983–5042, and 5070–5210. The spectra measured with the program REDUCE have a two-pixel resolution of 0.072 Å. We used ATLAS9 models and the program WIDTH9 to derive the abundances of the metals. Most derived abundances are close to solar with the abundances of the heaviest elements Zr, Ba, La, Ce, and Nd showing greater than solar values. This suggests by comparison with the abundances of other normal and Am stars that γ Gem might exhibit an incipient Am star phenomenon.
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PublisherIOP Publishing
LanguageEnglish
Peer reviewedYes
NPARC number21275703
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Record created2015-07-14
Record modified2016-05-09
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