A possible substellar companion to the intermediate-mass giant HD 175679

	A possible substellar companion to the intermediate-mass giant HD 175679
	Wang, Liang1,2 ; Sato, Bun'ei 3; Zhao, Gang1 ; Liu, Yu-Juan 1; Noguchi, Kunio 4; Ando, Hiroyasu 4; Izumiura, Hideyuki 5; Kambe, Eiji 5; Omiya, Masashi 3; Harakawa, Hiroki 3
刊名	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
	2012
卷号	12 期号:1 页码:84-92
关键词	stars: individual (HD 175679) stars: brown dwarfs techniques: radial velocities
英文摘要	We report the discovery of a substellar companion around the intermediate-mass giant HD 175679. Precise radial velocity data of the star from the Xing long Station and the Okayama Astrophysical Observatory revealed a Keplerian velocity variation with an orbital period of 1366.8+/-5.7 d, a semiamplitude of 380.2+/-3.2 m s(-1) and an eccentricity of 0.378 +/- 0.008. Adopting a stellar mass of 2.7 +/- 0.3 M-circle dot, we obtain that the minimum mass of the HD 175679 b is 37.3+/-2.8 M-J and the semimajor axis is 3.36+/-0.12 AU. This discovery is the second brown dwarf companion candidate from a joint planet-search program between China and Japan.
收录类别	SCI
语种	英语
WOS记录号	WOS:000300031300007
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/6264]
专题	国家天文台_光学天文研究部
作者单位	1.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100012, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Tokyo Inst Technol, Grad Sch Sci & Engn, Dept Earth & Planetary Sci, Meguro Ku, Tokyo 1528551, Japan 4.Natl Inst Nat Sci, Natl Astron Observ Japan, Mitaka, Tokyo 1818588, Japan 5.Natl Inst Nat Sci, Natl Astron Observ Japan, Okayama Astrophys Observ, Asakuchi, Okayama 7190232, Japan 6.Hiroshima Univ, Hiroshima Astrophys Sci Ctr, Higashihiroshima 7398526, Japan
推荐引用方式 GB/T 7714	Wang, Liang,Sato, Bun'ei,Zhao, Gang,et al. A possible substellar companion to the intermediate-mass giant HD 175679[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2012,12(1):84-92.
APA	Wang, Liang.,Sato, Bun'ei.,Zhao, Gang.,Liu, Yu-Juan.,Noguchi, Kunio.,...&Kokubo, Eiichiro.(2012).A possible substellar companion to the intermediate-mass giant HD 175679.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,12(1),84-92.
MLA	Wang, Liang,et al."A possible substellar companion to the intermediate-mass giant HD 175679".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 12.1(2012):84-92.