ORBITS OF SUBSYSTEMS IN FOUR HIERARCHICAL MULTIPLE STARS
ORBITS OF SUBSYSTEMS IN FOUR HIERARCHICAL MULTIPLE STARS
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四级多星子系统的轨道
DOI：
10.3847/0004-6256/152/1/10
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
A. Tokovinin
中科院分区：
文献类型：
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作者：
A. Tokovinin
给出了附近太阳型多星的7个光谱轨道。色球活动恒星HIP 9642的主星是4.8天双线对；外420年的目视轨道已经更新，但仍然缺乏约束。HIP 12780是一个四重系统，由分辨6.7年对FIN 379 Aa，Ab和单线双星Ba，Bb组成，它们的总轨道、质量和轨道视差在这里被确定。HIP 28790是一个年轻的五倍的系统由两个亲密的二进制文件、Aa、Ab与Ba, Bb,和一段时期的221年和13天,分别和一个遥远的组件c .它的子系统英航,Bb是独特的,拥有一个光谱质量比为0.89,但差异2.2∼杂志。HIP 64478级还包含五颗星:一个组件是一个29年视觉一对双胞胎子系统与先前已知的4天,而b组份与二进制联系一段5.8人力资源,几乎见过柱子。
Seven spectroscopic orbits in nearby solar-type multiple stars are presented. The primary of the chromospherically active star HIP 9642 is a 4.8 day double-lined pair; the outer 420 year visual orbit is updated, but remains poorly constrained. HIP 12780 is a quadruple system consisting of the resolved 6.7 year pair FIN 379 Aa,Ab, for which the combined orbit, masses, and orbital parallax are determined here, and the single-lined binary Ba,Bb with a period of 27.8 days. HIP 28790 is a young quintuple system composed of two close binaries, Aa,Ab and Ba,Bb, with periods of 221 and 13 days, respectively, and a single distant component C. Its subsystem Ba,Bb is peculiar, having a spectroscopic mass ratio of 0.89 but a magnitude difference of ∼2.2 mag. HIP 64478 also contains five stars: the A-component is a 29 year visual pair with a previously known 4 day twin subsystem, while the B-component is a contact binary with a period of 5.8 hr, seen nearly pole-on.
A.Dogariu：“分形聚合介质反向散射光的增强因子”光学评论。
DOI：
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通讯作者：
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