Chemical composition of globular-cluster horizontal-branch stars in the galactic field

Details Chemical composition of globular-cluster horizontal-branch stars in the galactic field Chemical composition of globular-cluster horizontal-branch stars in the galactic field

Jun 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985azh....62..552k&link_type=abstract

(Astronomicheskii Zhurnal, vol. 62, May-June 1985, p. 552-557) Soviet Astronomy (ISSN 0038-5301), vol. 29, May-June 1985, p. 320

Astronomy and Astrophysics

Astronomy

2

Horizontal Branch Stars, Metallicity, Stellar Composition, Stellar Spectra, A Stars, Milky Way Galaxy, Open Clusters, Stellar Atmospheres

Scientific paper

The chemical compositions of four field stars, HD 74721, 86986, 109995, and 161817, members of the globular-cluster horizontal branch, were determined from spectrograms with an inverse dispersion of 9 A/mm obtained on the 6-m telescope. To within the accuracy of the method of model atmospheres, the chemical compositions of these stars are the same, and the metal deficit with respect to normal A stars in young open clusters averages Delta log epsilon = -1.50 + or - 0.22.

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