The binary nature of the barium stars
1980; IOP Publishing; Volume: 238; Linguagem: Inglês
10.1086/183252
ISSN1538-4357
AutoresR. D. McClure, J. M. Fletcher, J. M. Nemec,
Tópico(s)Astronomy and Astrophysical Research
Resumoview Abstract Citations (271) References (12) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The binary nature of the barium stars. McClure, R. D. ; Fletcher, J. M. ; Nemec, J. M. Abstract 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. Publication: The Astrophysical Journal Pub Date: May 1980 DOI: 10.1086/183252 Bibcode: 1980ApJ...238L..35M Keywords: Barium; Binary Stars; Metallic Stars; Stellar Evolution; Stellar Spectra; Globular Clusters; Radial Velocity; Stellar Mass; Astronomy full text sources ADS | data products SIMBAD (46)
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