论文标题

五星星的轨道

Orbits of Five Triple Stars

论文作者

Tokovinin, Andrei, Latham, David

论文摘要

进行五个分层恒星系统的径向速度和位置测量的联合分析,以确定其内部和外轨道的要素,并在可能的情况下进行相互倾斜。 HD 12376(ADS 1613),1.14和〜19971(ADS 2390),89795(ADS 7338),1.11和40 YR的HD 19971(ADS 2390),8.3和475年的内部和外部时期为12.9和345年(ADS 1613),1.14和〜1500年。共面和准圆形轨道属于紧凑的行星样层次结构,而HD 12376中的轨道相互倾斜为131度。

Joint analysis of radial velocities and position measurements of five hierarchical stellar systems is undertaken to determine elements of their inner and outer orbits and, whenever possible, their mutual inclinations. The inner and outer periods are 12.9 and 345 yr for HD 12376 (ADS 1613), 1.14 and ~1500 yr for HD 19971 (ADS 2390), 8.3 and 475 yr for HD 89795 (ADS 7338), 1.11 and 40 yr for HD 152027, 0.69 and 7.4 yr for HD 190412. The latter system with its co-planar and quasi-circular orbits belongs to the family of compact planetary-like hierarchies, while the orbits in HD 12376 have mutual inclination of 131 degrees.

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