We report the discovery of faint common-proper-motion companions to the nearby southern solar-type stars HD 43162, HD 67199, HD 114837, HD 114853, HD 129502, HD 165185, HD 197214 and HD 212330 from near-infrared imaging and astrometry. We also confirm the previously identified tertiary components around HD 165401 and HD 188088. Since the majority of these stars were already known as binaries, they ascend now to higher level systems. A particularly interesting case is the G6.5 V BY Dra-type variable HD 43162, which harbours two common-proper-motion companions at distances of 410 and 2740 au. Our limited study shows that the inventory of common-proper-motion companions around nearby bright stars is still not completely known.
机构:
Univ Santiago de Compostela, Observat Astron Ramon Maria Aller, Santiago De Compostela, Spain
Univ Santiago de Compostela, Dept Appl Math, Santiago De Compostela, SpainUniv Santiago de Compostela, Observat Astron Ramon Maria Aller, Santiago De Compostela, Spain
Docobo, J. A.
Ling, J. F.
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Univ Santiago de Compostela, Observat Astron Ramon Maria Aller, Santiago De Compostela, Spain
Univ Santiago de Compostela, Dept Appl Math, Santiago De Compostela, SpainUniv Santiago de Compostela, Observat Astron Ramon Maria Aller, Santiago De Compostela, Spain
机构:
Univ Strasbourg, CNRS, Observ Astronom Strasbourg, UMR 7550, 11 Rue Univ, F-67000 Strasbourg, FranceUniv Strasbourg, CNRS, Observ Astronom Strasbourg, UMR 7550, 11 Rue Univ, F-67000 Strasbourg, France
Halbwachs, J. L.
Mayor, M.
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Univ Geneva, Observ Astronom, 51 Chemin Maillettes, CH-1290 Sauverny, SwitzerlandUniv Strasbourg, CNRS, Observ Astronom Strasbourg, UMR 7550, 11 Rue Univ, F-67000 Strasbourg, France
Mayor, M.
Udry, S.
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Univ Geneva, Observ Astronom, 51 Chemin Maillettes, CH-1290 Sauverny, SwitzerlandUniv Strasbourg, CNRS, Observ Astronom Strasbourg, UMR 7550, 11 Rue Univ, F-67000 Strasbourg, France