Helium in the atmospheres of binary stars

Details Helium in the atmospheres of binary stars Helium in the atmospheres of binary stars

Aug 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984azh....61..733l&link_type=abstract

(Astronomicheskii Zhurnal, vol. 61, July-Aug. 1984, p. 733-738) Soviet Astronomy (ISSN 0038-5301), vol. 28, July-Aug. 1984, p. 4

Astronomy and Astrophysics

Astronomy

8

Binary Stars, Helium, Stellar Atmospheres, Stellar Evolution, Stellar Models, Atmospheric Composition, Hertzsprung-Russell Diagram, Main Sequence Stars, Spectral Line Width

Scientific paper

A uniform summary of the helium content in the atmospheres of 25 bright components of binary systems is obtained using model atmospheres. On the average the He content in binary stars is higher than normal even for components which lie near the main sequence. On the Hertzsprung-Russell diagram these components are located farther from the zero-age line on the average than stars with a normal He content.

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