Volume 439, Number 2, August IV 2005
|Page(s)||663 - 670|
|Section||Stellar structure and evolution|
|Published online||29 July 2005|
Spectroscopic binaries with elliptical orbits
Astrophysics Group, Blackett Laboratory, Imperial College London, Prince Consort Road, London SW7 2AZ, UK e-mail: firstname.lastname@example.org
Accepted: 8 May 2005
The radial velocity curves of many spectroscopic binaries (SBs) are perturbed by gas streams or proximity effects. For SBs with circular orbits, these perturbations can give rise to spurious orbital eccentricities of high statistical significance. But tests to identify such anomalous orbits can be constructed since perturbed velocity curves are in general no longer Keplerian. The derived tests are applied both to synthetic and to observed velocity curves.
Key words: binaries: spectroscopic / methods: statistical
© ESO, 2005
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