Spectroscopic Orbits of Subsystems in Multiple Stars. V.
نویسندگان
چکیده
منابع مشابه
Ten CORAVEL spectroscopic binary orbits of evolved stars
On the basis of Coravel observations, we present orbital parameters for 10 spectroscopic-binary systems including an evolved star, namely HD 13530, HD 28591, HD 47415, HD 78414, HD 123999, HD 153751, HD 174881, HD 179094, HD 212280 and HD 217188. The most significant result is related to HD 13530, for which we have found an orbital period of 1575.48±1.63 days and an eccentricity of 0.8815. Such...
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Radial velocity (RV) monitoring of solar-type visual binaries has been conducted at the CTIO/SMARTS 1.5-m telescope to study short-period systems. Data reduction is described, mean and individual RVs of 163 observed objects are given. New spectroscopic binaries are discovered or suspected in 17 objects, for some of them orbital periods could be determined. Subsystems are efficiently detected ev...
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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 ...
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Aims. The aims of our study are to improve the orbital elements of the giant, and to derive the spectroscopic orbit for the white dwarf companion. Spectral variations related to the 2006 outburst are also studied. Methods. We performed an analysis of about seventy optical and near infrared spectra of RS Oph that were acquired between 1998 and June 2008. The spectroscopic orbits have been obtain...
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ژورنال
عنوان ژورنال: The Astronomical Journal
سال: 2019
ISSN: 1538-3881
DOI: 10.3847/1538-3881/aafe00