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O/Fe in metal-poor main sequence and subgiant stars

Nissen, P.E; Primas, F; Asplund, Martin; Lambert, David L


A study of the O/Fe ratio in metal-poor main sequence and subgiant stars is presented using the \ion{O{i}},6300 Å line, the \ion{O}{i} 7774 Å triplet, and a selection of weak \ion{Fe}{ii} lines observed on high-resolution spectra acquired with the VLT UVES spectrograph. The \ion{O{i} line is detected in the spectra of 18 stars with -2.4 < [Fe/H] < -0.5, and the triplet is observed for 15 stars with Fe/H ranging from -1.0 to -2.7. The abundance analysis was made first using standard model...[Show more]

CollectionsANU Research Publications
Date published: 2002
Type: Journal article
Source: Astronomy and Astrophysics


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