High-precision Orbits of Southern Single-lined Spectroscopic Binaries

Details High-precision Orbits of Southern Single-lined Spectroscopic Binaries High-precision Orbits of Southern Single-lined Spectroscopic Binaries

Aug 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aspc..404..215k&link_type=abstract

The Eighth Pacific Rim Conference on Stellar Astrophysics: A Tribute to Kam-Ching Leung ASP Conference Series, Vol. 404, proceed

Astronomy and Astrophysics

Astrophysics

Scientific paper

The {S_B}^9 is a collection of more than three thousand orbits of SB. It is found that around 5% of these orbits are assumed to be circularized, which is an assumption based on the method of Lucy and Sweeney (1971). Recently, the HERCULES spectrograph was used to study the orbits of eleven southern spectroscopic binary systems. It is possible to detect a low eccentricity in HD 194215 with possible r.m.s. scatter as low as ≈ 50 m s-1.

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