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Measuring Oxygen Abundances from Stellar Spectra without Oxygen Lines

Ting, Yuan-Sen; Conroy, Charlie; Rix, Hans-Walter; Asplund, Martin

Description

Oxygen is the most abundant "metal" element in stars and in the cosmos. But determining oxygen abundances in stars has proven challenging, because of the shortage of detectable atomic oxygen lines in their optical spectra as well as observational and theoretical complications with these lines (e.g., blends, three-dimensional, non-LTE). Nonetheless, Ting et al. were recently able to demonstrate that oxygen abundances can be determined from low-resolution (R ≃ 2000) optical spectra. Here, we...[Show more]

CollectionsANU Research Publications
Date published: 2018
Type: Journal article
URI: http://hdl.handle.net/1885/251840
Source: The Astrophysical Journal
DOI: 10.3847/1538-4357/aac6c9
Access Rights: Open Access

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