Two extrasolar planets from the Anglo-Australian Planet Search

被引:54
作者
Tinney, CG
Butler, RP
Marcy, GW
Jones, HRA
Penny, AJ
McCarthy, C
Carter, BD
机构
[1] Anglo Australian Observ, Epping, NSW 1710, Australia
[2] Carnegie Inst Washington, Dept Terr Magnetism, Washington, DC 20015 USA
[3] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA
[4] San Francisco State Univ, Dept Phys & Astron, San Francisco, CA 94132 USA
[5] Liverpool John Moores Univ, Astrophys Res Inst, Birkenhead, Merseyside, England
[6] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England
[7] Univ So Queensland, Fac Sci, Toowoomba, Qld 4350, Australia
关键词
planetary systems; stars; individual; (HD; 142; HD; 23079);
D O I
10.1086/339916
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We report the detection of two new extrasolar planets from the Anglo-Australian Planet Search around the stars HD 142 and HD 23079. The planet orbiting HD 142 has an orbital period of just under 1 yr, while that orbiting HD 23079 has a period of just under 2 yr. HD 142 falls into the class of "eccentric" gas giants. HD 23079 joins the group of "epsilon Ret-like" gas giant planets, with near-circular orbits outside a radius of 0.1 AU. The recent discovery of several more members of this class provides new impetus for the extension of existing planet searches to longer periods in the search for Jupiter-like planets in Jupiter-like orbits.
引用
收藏
页码:528 / 531
页数:4
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