Spectroscopic Binaries and Their Parallaxes
نویسندگان
چکیده
منابع مشابه
Spectroscopic binaries with elliptical orbits
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 ...
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The assertion that there is an intrinsic excess of binaries with mass ratios q ≃ 1-the twin hypothesis-is investigated. A strong version of this hypothesis (Hs), due to Lucy & Ricco (1979) and Tokovinin (2000), refers to a narrow peak in the distribution function ψ(q) for q > ∼ 0.95. A weak version (Hw), due to Halbwachs et al. (2003), refers to a broad peak for q > ∼ 0.8. Current data on SB2's...
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ژورنال
عنوان ژورنال: Publications of the Astronomical Society of the Pacific
سال: 1942
ISSN: 0004-6280,1538-3873
DOI: 10.1086/125419