The binary nature of the barium stars

Details The binary nature of the barium stars The binary nature of the barium stars

May 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...238l..35m&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 238, May 15, 1980, p. L35-L38.

Astronomy and Astrophysics

Astrophysics

196

Barium, Binary Stars, Metallic Stars, Stellar Evolution, Stellar Spectra, Globular Clusters, Radial Velocity, Stellar Mass

Scientific paper

Radial-velocity spectrometer observations are presented that indicate that Ba II stars are binary systems. The secondary stars of these systems have low masses, consistent with their being degenerate objects which have lost mass onto their primaries in a previous stage of evolution. It is suggested that the Population II equivalents, the CH stars, may also be binary systems. This may be related to the fact that they are found only in globular clusters of the lowest central concentration.

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