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THE PAN-PACIFIC PLANET SEARCH. I. A GIANT PLANET ORBITING 7 CMa
Wittenmyer, Robert A.1; Endl, Michael2; Wang, Liang3; Johnson, John Asher4; Tinney, C. G.1; O'Toole, S. J.5
2011-12-20
发表期刊ASTROPHYSICAL JOURNAL
卷号743期号:2
摘要We introduce the Pan-Pacific Planet Search, a survey of 170 metal-rich Southern Hemisphere subgiants using the 3.9 m Anglo-Australian Telescope. We report the first discovery from this program, a giant planet orbiting 7 CMa (HD 47205) with a period of 763 +/- 17 days, eccentricity e = 0.14 +/- 0.06, and msin i = 2.6 +/- 0.6 M(Jup). The host star is a K giant with a mass of 1.5 +/- 0.3M(circle dot) and metallicity [Fe/H] = 0.21 +/- 0.10. The mass and period of 7 CMa b are typical of planets which have been found to orbit intermediate-mass stars (M(*) > 1.3M(circle dot)). Hipparcos photometry shows this star to be stable to 0.0004 mag on the radial-velocity period, giving confidence that this signal can be attributed to reflex motion caused by an orbiting planet.
关键词Planetary Systems Stars: Individual (Hd 47205) Techniques: Radial Velocities
DOI10.1088/0004-637X/743/2/184
收录类别SCI
语种英语
WOS记录号WOS:000298178400086
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文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/7916
专题光学天文研究部
作者单位1.Univ New S Wales, Dept Astrophys, Sch Phys, Sydney, NSW 2052, Australia
2.Univ Texas Austin, McDonald Observ, Austin, TX 78712 USA
3.Chinese Acad Sci, Key Lab Opt Astron, Natl Astron Observ, Beijing 100012, Peoples R China
4.CALTECH, Dept Astrophys, Pasadena, CA 91125 USA
5.Australian Astron Observ, Epping, NSW 1710, Australia
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Wittenmyer, Robert A.,Endl, Michael,Wang, Liang,et al. THE PAN-PACIFIC PLANET SEARCH. I. A GIANT PLANET ORBITING 7 CMa[J]. ASTROPHYSICAL JOURNAL,2011,743(2).
APA Wittenmyer, Robert A.,Endl, Michael,Wang, Liang,Johnson, John Asher,Tinney, C. G.,&O'Toole, S. J..(2011).THE PAN-PACIFIC PLANET SEARCH. I. A GIANT PLANET ORBITING 7 CMa.ASTROPHYSICAL JOURNAL,743(2).
MLA Wittenmyer, Robert A.,et al."THE PAN-PACIFIC PLANET SEARCH. I. A GIANT PLANET ORBITING 7 CMa".ASTROPHYSICAL JOURNAL 743.2(2011).
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