thehighamplitudescutivariablecyaqrisprobablyatriplesystem

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	thehighamplitudescutivariablecyaqrisprobablyatriplesystem
	Fang Weijing 2; Luo Zhiquan 2; Zhang Xiaobin 1; Deng Licai 1; Wang Kun 1; Luo Yangping 2; Pan Yang 2; Peng Yinjiang 2
刊名	researchinastronomyandastrophysics
	2016
卷号	16 期号:6 页码:96
ISSN号	1674-4527
英文摘要	Data representing 864 times of light maxima of the high-amplitude δ Scuti star CY Aqr were collected from the literature, based on which, long-term period changes of the variable star were investigated. A revised period and new ephemerides were given for the pulsating star. Remarkable cyclic variations were found in the O - C residuals which can be attributed to the light-time effects due to probable unseen components of the object. By using Kopal's method, the orbital parameters of the supposed component stars were derived. The solution suggests that CY Aqr is very probably in a triple system orbited eccentrically by two low-mass companions with periods of 54.2 and 47.3 yr. The lower limits on masses were estimated as 0.04 M_⊙ and 0.02 M_⊙, respectively, for the two hidden companions.
语种	英语
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/40098]
专题	中国科学院国家天文台
作者单位	1.中国科学院国家天文台 2.西华师范大学
推荐引用方式 GB/T 7714	Fang Weijing,Luo Zhiquan,Zhang Xiaobin,et al. thehighamplitudescutivariablecyaqrisprobablyatriplesystem[J]. researchinastronomyandastrophysics,2016,16(6):96.
APA	Fang Weijing.,Luo Zhiquan.,Zhang Xiaobin.,Deng Licai.,Wang Kun.,...&Peng Yinjiang.(2016).thehighamplitudescutivariablecyaqrisprobablyatriplesystem.researchinastronomyandastrophysics,16(6),96.
MLA	Fang Weijing,et al."thehighamplitudescutivariablecyaqrisprobablyatriplesystem".researchinastronomyandastrophysics 16.6(2016):96.