Contact Binaries with Additional Components. I. The Extant Data
Contact Binaries with Additional Components. I. The Extant Data
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DOI：
10.1086/503871
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发表时间：
2006-01
期刊：
影响因子：
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通讯作者：
T. Pribulla;S. Rucinski
中科院分区：
文献类型：
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作者：
T. Pribulla;S. Rucinski
我们试图建立观测证据的存在，遥远的同伴，可能已经获得和/或吸收角动量在多个系统的演化过程中，从而促进或使接触双星的形成。在这个初步的调查中，我们使用了几种技术（其中一些是距离无关的），大多忽略了个别技术的检测偏差，试图建立一个下限的三重系统的频率。虽然151颗亮于Vmax = 10等的接触双星的整个样本给出了42% ± 5%的可靠下限，但观测得更好的北天子样本的相应数字为59% ± 8%。这些估计表明，大多数接触双星存在于多个系统中。
We have attempted to establish observational evidence for the presence of distant companions that may have acquired and/or absorbed angular momentum during the evolution of multiple systems, thus facilitating or enabling the formation of contact binaries. In this preliminary investigation we use several techniques (some of them distance-independent) and mostly disregard the detection biases of individual techniques in an attempt to establish a lower limit to the frequency of triple systems. While the whole sample of 151 contact binary stars brighter than Vmax = 10 mag gives a firm lower limit of 42% ± 5%, the corresponding number for the much better observed northern-sky subsample is 59% ± 8%. These estimates indicate that most contact binary stars exist in multiple systems.