New visual companions of solar-type stars within 25 pc

被引:15
作者
Chini, R. [1 ,2 ]
Fuhrmann, K. [1 ,3 ]
Barr, A. [1 ]
Pozo, F. [1 ]
Westhues, C. [1 ]
Hodapp, K. [4 ]
机构
[1] Ruhr Univ Bochum, Astron Inst, D-44801 Bochum, Germany
[2] Univ Catolica Norte, Inst Astron, Casilla 1280, Antofagasta, Chile
[3] Isaac Newton Grp Telescopes, E-38700 Santa Cruz De La Palma, Spain
[4] Univ Hawaii, Inst Astron, Hilo, HI 96720 USA
基金
美国国家航空航天局; 美国国家科学基金会;
关键词
astrometry; proper motions; NEARBY STARS; TERTIARY COMPANIONS; RADIAL-VELOCITIES; WIDE COMPANIONS; HIPPARCOS STARS; MULTIPLE STARS; NSTARS PROJECT; GALACTIC DISC; BINARIES; SYSTEMS;
D O I
10.1093/mnras/stt1953
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
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.
引用
收藏
页码:879 / 886
页数:8
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