A long-period eccentric substellar companion to the evolved intermediate-mass star HD 14067
文献类型：期刊论文
| 作者 | Wang, Liang1 ; Sato, Bun'ei2; Omiya, Masashi2; Harakawa, Hiroki2; Liu, Yujuan1; Song, Nan1,3; He, Wei1,3; Wu, Xiaoshu1,3; Izumiura, Hideyuki4,5; Kambe, Eiji4
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| 刊名 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
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| 出版日期 | 2014-12-01 |
| 卷号 | 66期号:6 |
| 关键词 | planetary systems stars: individual (HD 14067) techniques: radial velocities |
| 英文摘要 | We report on the detection of a substellar companion orbiting an evolved intermediate-mass (M-star = 2.4 M-circle dot) star HD14067 (G9 III) using a precise Doppler technique. Either a periodic Keplerian variation with a decreasing linear velocity trend (P=1455 d, K-1 = 92.2 m s(-1), e=0.533, and (gamma) over dot = -22.4 m s(-1) yr(-1)) or a single Keplerian orbit without linear trend (P=2850 d, K-1 = 100.1 m s(-1), and e=0.697) can be well fitted to the radial velocities of this star. The minimum mass (m(2) sin i=7.8 M-J for the model with a linear trend, or m(2) sin i=9.0 M-J for the model without a linear trend) suggests a long-period giant planet orbiting an evolved intermediate-mass star. The eccentricity of the orbit is among the highest ones ever detected for planets moving around evolved stars. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000349095900021 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6609]  |
| 专题 | 国家天文台_光学天文研究部 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observat, Key Lab Opt Astron, Beijing 100012, Peoples R China 2.Tokyo Inst Technol, Meguro Ku, Tokyo 1528550, Japan 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Natl Inst Nat Sci, Natl Astron Observ Japan, Okayama Astrophys Observ, Okayama 7190232, Japan 5.Grad Univ Adv Studies, Hayama, Kanagawa 2400193, Japan 6.Natl Astron Observ Japan, Mitaka, Tokyo 1818588, Japan 7.Hiroshima Univ, Hiroshima Astrophys Sci Ctr, Hiroshima 7398526, Japan 8.Univ Hyogo, Ctr Astron, Nishi Harima Astron Observ, Sayo, Hyogo 6795313, Japan |
| 推荐引用方式 GB/T 7714 | Wang, Liang,Sato, Bun'ei,Omiya, Masashi,et al. A long-period eccentric substellar companion to the evolved intermediate-mass star HD 14067[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2014,66(6). |
| APA | Wang, Liang.,Sato, Bun'ei.,Omiya, Masashi.,Harakawa, Hiroki.,Liu, Yujuan.,...&Zhao, Gang.(2014).A long-period eccentric substellar companion to the evolved intermediate-mass star HD 14067.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,66(6). |
| MLA | Wang, Liang,et al."A long-period eccentric substellar companion to the evolved intermediate-mass star HD 14067".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 66.6(2014). |
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来源：国家天文台
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