THE DOUBLE-LINE SPECTROSCOPIC BINARY HD 159176

From coudé observations at Kitt Peak and Cerro Tololo we derive the orbital elements of the system HD 159176. Both stars are practically identical O7 stars, each already evolved from the ZAMS. The close separation, probable synchronous rotation, and near filling of their Roche lobes suggest photomet...

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Bibliographic Details
Published in:Publications of the Astronomical Society of the Pacific 1975-04, Vol.87 (516), p.327-332
Main Authors: CONTI, PETER S., COWLEY, ANNE P., JOHNSON, GREGORY B.
Format: Article
Language:English
Subjects:
Astronomical research
Astrophysics
Circular orbits
Observational astronomy
Observational research
Observatories
Space based observatories
Spectroscopy
Stars
Stellar spectra
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Summary:From coudé observations at Kitt Peak and Cerro Tololo we derive the orbital elements of the system HD 159176. Both stars are practically identical O7 stars, each already evolved from the ZAMS. The close separation, probable synchronous rotation, and near filling of their Roche lobes suggest photometric variability will be observable. Eclipses are unlikely.
ISSN:0004-6280
1538-3873
DOI:10.1086/129763