The Pan-Pacific planet search. I. A giant planet orbiting 7 CMa
Article
Article Title | The Pan-Pacific planet search. I. A giant planet orbiting 7 CMa |
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ERA Journal ID | 1057 |
Article Category | Article |
Authors | Wittenmyer, Robert A. (Author), Endl, Michael (Author), Wang, Liang (Author), Johnson, John Asher (Author), Tinney, C. G. (Author) and O'Toole, S. J. (Author) |
Journal Title | The Astrophysical Journal: an international review of astronomy and astronomical physics |
Journal Citation | 743 (2) |
Article Number | 184 |
Number of Pages | 7 |
Year | 2011 |
Publisher | IOP Publishing |
Place of Publication | United States |
ISSN | 0004-637X |
1538-4357 | |
Digital Object Identifier (DOI) | https://doi.org/10.1088/0004-637X/743/2/184 |
Web Address (URL) | http://iopscience.iop.org/article/10.1088/0004-637X/743/2/184 |
Abstract | 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 m sin i = 2.6 ± 0.6MJup. The host star is a K giant with a mass of 1.5 ± 0.3 M⊙ 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 * greater than 1.3 M ⊙). 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. |
Keywords | planetary systems; individual stars(HD 47205); techniques - radial velocities; |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 510109. Stellar astronomy and planetary systems |
Public Notes | For access to this article, please click on the URL link provided. |
Byline Affiliations | University of New South Wales |
University of Texas at Austin, United States | |
Key Laboratory of Optical Astronomy, China | |
California Institute of Technology (Caltech), United States | |
Australian Astronomical Observatory, Australia | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q41vq/the-pan-pacific-planet-search-i-a-giant-planet-orbiting-7-cma
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