Ten CORAVEL spectroscopic binary orbits of evolved stars

Details Ten CORAVEL spectroscopic binary orbits of evolved stars Ten CORAVEL spectroscopic binary orbits of evolved stars

Jun 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999a%26a...346..532d&link_type=abstract

Astronomy and Astrophysics, v.346, p.532-536 (1999)

Astronomy and Astrophysics

Astrophysics

15

Stars: Supergiants Stars: Binaries: Spectroscopic, Stars: Late-Type

Scientific paper

On the basis of Coravel observations, we present orbital parameters for 10 spectroscopic-binary systems including an evolved star, namely HD 13530, HD 28591, HD 47415, HD 78414, HD 123999, HD 153751, HD 174881, HD 179094, HD 212280 and HD 217188. The most significant result is related to HD 13530, for which we have found an orbital period of 1575.48+/-1.63 days and an eccentricity of 0.8815. Such an eccentricity value is the largest one known up to date for a single-lined spectroscopic binary with a giant component. The other spectroscopic orbits described in this paper principally confirm with independent data previously obtained orbital solutions except HD 179094 for which the double-lined status was still unknown. Based on observations collected at the Haute-Provence Observatory, Saint-Michel, France and at ESO, La Silla, Chile.

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