Spectroscopic binaries with elliptical orbits

Details Spectroscopic binaries with elliptical orbits Spectroscopic binaries with elliptical orbits

2005-05-11

arxiv.org/abs/astro-ph/0505227v1

Astronomy and Astrophysics

Astrophysics

9pages,3figures,accepted by A&A

Scientific paper

10.1051/0004-6361:20052909

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.

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