Oxygen abundances in horizontal branch stars

Details Oxygen abundances in horizontal branch stars Oxygen abundances in horizontal branch stars

Jun 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986msngr..44....4n&link_type=abstract

ESO Messenger (ISSN 0722-6691), June 1986, p. 4-6.

Physics

Abundance, Globular Clusters, Horizontal Branch Stars, Oxygen, Red Giant Stars, Stellar Spectra, Spectrum Analysis, Stellar Magnitude

Scientific paper

Based on observations made between June 11 and June 14, 1985 with the 3.6-m ESO telescope CASPEC spectrograph, oxygen abundances in NGC 6397 and NGC 6752 HB stars were determined to check the results from their red giants. The IR triplet at 7772-7775 A found for HD 86986 is in good agreement with previous findings. The results show oxygen abundances spanning a range of a factor of six in this star sample, with the most oxygen-poor star being relatively iron rich.

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