The Anglo-Australian planet search. XX. A solitary ice-giant planet orbiting HD 102365
Article
Article Title | The Anglo-Australian planet search. XX. A solitary ice-giant planet orbiting HD 102365 |
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ERA Journal ID | 1057 |
Article Category | Article |
Authors | Tinney, C. G. (Author), Butler, R. Paul (Author), Jones, Hugh R. A. (Author), Wittenmyer, Robert A. (Author), O'Toole, Simon (Author), Bailey, Jeremy (Author) and Carter, Brad D. (Author) |
Journal Title | The Astrophysical Journal: an international review of astronomy and astronomical physics |
Journal Citation | 727 (2), p. 103 |
Article Number | 103 |
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/727/2/103 |
Web Address (URL) | https://iopscience.iop.org/article/10.1088/0004-637X/727/2/103 |
Abstract | We present 12 years of precision Doppler data for the very nearby G3 star HD 102365, which reveals the presence of a Neptune-like planet with a 16.0 M Earth minimum mass in a 122.1 day orbit. Very few 'Super Earth' planets have been discovered to date in orbits this large and those that have been found reside in multiple systems of between three and six planets. HD 102365 b, in contrast, appears to orbit its star in splendid isolation. Analysis of the residuals to our Keplerian fit for HD 102365 b indicates that there are no other planets with minimum mass above 0.3 M Jup orbiting within 5 AU and no other 'Super Earths' more massive than 10 M Earth orbiting at periods shorter than 50 days. At periods of less than 20 days these limits drop to as low as 6 M Earth. There are now 32 exoplanets known with minimum mass below 20 M Earth, and interestingly the period distributions of these low-mass planets seem to be similar whether they orbit M-, K-, or G-type dwarfs. |
Keywords | planetary systems; stars: individual (HD 102365) |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 510109. Stellar astronomy and planetary systems |
519999. Other physical sciences not elsewhere classified | |
490302. Numerical analysis | |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | University of New South Wales |
Carnegie Institution of Washington, United States | |
University of Hertfordshire, United Kingdom | |
Anglo-Australian Observatory, Australia | |
Department of Biological and Physical Sciences | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q1187/the-anglo-australian-planet-search-xx-a-solitary-ice-giant-planet-orbiting-hd-102365
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