The Anglo-Australian planet search. XXIII. Two new Jupiter analogs
Article
Article Title | The Anglo-Australian planet search. XXIII. Two new Jupiter analogs |
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ERA Journal ID | 1057 |
Article Category | Article |
Authors | Wittenmyer, Robert A. (Author), Horner, Jonathan (Author), Tinney, C. G. (Author), Butler, R. P. (Author), Jones, H. R. A. (Author), Tuomi, Mikko (Author), Salter, G. S. (Author), Carter, B. D. (Author), Koch, F. Elliott (Author), O'Toole, S. J. (Author), Bailey, J. (Author) and Wright, D. (Author) |
Journal Title | The Astrophysical Journal: an international review of astronomy and astronomical physics |
Journal Citation | 783 (2), pp. 1-9 |
Article Number | 103 |
Number of Pages | 9 |
Year | 2014 |
Publisher | IOP Publishing |
Place of Publication | United States |
ISSN | 0004-637X |
1538-4357 | |
Digital Object Identifier (DOI) | https://doi.org/10.1088/0004-637X/783/2/103 |
Web Address (URL) | https://iopscience.iop.org/article/10.1088/0004-637X/783/2/103 |
Abstract | We report the discovery of two long-period giant planets from the Anglo-Australian Planet Search. HD 154857c is in a multiple-planet system, while HD 114613b appears to be solitary. HD 114613b has an orbital period P = 10.5 yr, and a minimum mass msin i of 0.48 M Jup HD 154857c has P = 9.5 yr and msin i = 2.6 M Jup. These new data confirm the planetary nature of the previously unconstrained long-period object in the HD 154857 system. We have performed detailed dynamical stability simulations which show that the HD 154857 two-planet system is stable on timescales of at least 108 yr. These results highlight the continued importance of 'legacy' surveys with long observational baselines; these ongoing campaigns are critical for determining the population of Jupiter analogs, and hence of those planetary systems with architectures most like our own solar system. |
Keywords | planets and satellites; detection; dynamical evolution and stability; planets and satellites; HD 114613; HD 154857; radial velocities |
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 | |
Public Notes | For access to this article, please click on the URL link provided. |
Byline Affiliations | University of New South Wales |
Carnegie Institution of Washington, United States | |
University of Hertfordshire, United Kingdom | |
Computational Engineering and Science Research Centre | |
San Diego State University, United States | |
Anglo-Australian Observatory, Australia | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q270q/the-anglo-australian-planet-search-xxiii-two-new-jupiter-analogs
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