A detailed analysis of the HD 73526 2:1 resonant planetary system
Article
Article Title | A detailed analysis of the HD 73526 2:1 resonant planetary system |
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ERA Journal ID | 1057 |
Article Category | Article |
Authors | Wittenmyer, Robert A. (Author), Tan, Xianyu (Author), Lee, Manhoi (Author), Horner, Jonathan (Author), Tinney, C. G. (Author), Butler, R. P. (Author), Salter, G. S. (Author), Carter, B. D. (Author), Jones, H. R. A. (Author), O'Toole, S. J. (Author), Bailey, J. (Author), Wright, D. (Author), Crane, J. D. (Author), Schectman, S. A. (Author), Arriagada, P. (Author), Thompson, I. (Author), Minniti, D. (Author) and Diaz, M. (Author) |
Journal Title | The Astrophysical Journal: an international review of astronomy and astronomical physics |
Journal Citation | 780 (2), pp. 1-9 |
Article Number | 140 |
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/780/2/140 |
Web Address (URL) | https://iopscience.iop.org/article/10.1088/0004-637X/780/2/140 |
Abstract | We present six years of new radial velocity data from the Anglo-Australian and Magellan Telescopes on the HD 73526 2:1 resonant planetary system. We investigate both Keplerian and dynamical (interacting) fits to these data, yielding four possible configurations for the system. The new data now show that both resonance angles are librating, with amplitudes of 40° and 60°, respectively. We then perform long-term dynamical stability tests to differentiate these solutions, which only differ significantly in the masses of the planets. We show that while there is no clearly preferred system inclination, the dynamical fit with i = 90°provides the best combination of goodness-of-fit and long-term dynamical stability. |
Keywords | numerical methods; planets and satellites; dynamical evolution and stability; planets and satellites; HD 73526; 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 | |
490105. Dynamical systems in applications | |
Public Notes | For access to this article, please click on the URL link provided. |
Byline Affiliations | University of New South Wales |
University of Hong Kong, China | |
Carnegie Institution of Washington, United States | |
Computational Engineering and Science Research Centre | |
University of Hertfordshire, United Kingdom | |
Anglo-Australian Observatory, Australia | |
Carnegie Observatories Pasadena, United States | |
Pontifical Catholic University of Chile, Chile | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q2818/a-detailed-analysis-of-the-hd-73526-2-1-resonant-planetary-system
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