On the chemical abundances of close binary stars on and near the main sequence

Details On the chemical abundances of close binary stars on and near the main sequence On the chemical abundances of close binary stars on and near the main sequence

Sep 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990basi...18..277k&link_type=abstract

Astronomical Society of India, Bulletin (ISSN 0304-9523), vol. 18, Sept.-Dec. 1990, p. 277-284.

Statistics

Abundance, Binary Stars, Main Sequence Stars, Stellar Composition, Stellar Evolution, A Stars, B Stars, Metallicity, Stellar Atmospheres, Stellar Luminosity, Stellar Spectrophotometry

Scientific paper

A review is made of the chemical abundances of binary stars in the catalogs of Cayrel de Strobel (1981, 1985). Solar-type single-line close binaries, A- and B-type close binaries on and near the main sequence, and close binaries with spotted photospheres are considered. It is shown that ignorance of the binary condition introduces a bias into elemental abundance statistics which is of the order of the precision with which an abundance can be ordinarily established. It is also shown that specific-seeming abundance anomalies for hot and cool binaries might be explained by the existence of unrecognized binaries among the sample.

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