The multiplicity of planet host stars - new low-mass companions to planet host stars
نویسندگان
چکیده
منابع مشابه
Spectroscopic metallicities for planet-host stars: extending the samples
We present stellar parameters and metallicities for 28 planet-host stars, as well as for a large volume-limited sample of 54 stars not known to be orbited by any planetary-mass companion. These stars add to the results presented in our previous series of papers, providing two large and uniform samples of 119 planet-hosts and 95 “single” stars with accurate stellar parameters and [Fe/H] estimate...
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It is now well established that a large fraction of the low-mass stars are binaries or higher order multiples. Similarly a sizable fraction have giant planets. In contrast to these, the situation for brown dwarf companions is complicated: While close systems seem to be extremely rare, wide systems are possibly more common. In this paper, we present new results on a survey for low-mass companion...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2007
ISSN: 0035-8711,1365-2966
DOI: 10.1111/j.1365-2966.2007.11858.x