Journal
ASTRONOMY & ASTROPHYSICS
Volume 439, Issue 2, Pages 663-670Publisher
EDP SCIENCES S A
DOI: 10.1051/0004-6361:20052909
Keywords
binaries : spectroscopic; methods : statistical
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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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