GJ 832c: a super-earth in the habitable zone
Article
Article Title | GJ 832c: a super-earth in the habitable zone |
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ERA Journal ID | 1057 |
Article Category | Article |
Authors | Wittenmyer, Robert A. (Author), Tuomi, Mikko (Author), Butler, R. P. (Author), Jones, H. R. A. (Author), Anglada-Escude, Guillem (Author), Horner, Jonathan (Author), Tinney, C. G. (Author), Marshall, J. P. (Author), Carter, B. D. (Author), Bailey, J. (Author), Salter, G. S. (Author), O'Toole, S. J. (Author), Wright, D. (Author), Crane, J. D. (Author), Schectman, S. A. (Author), Arriagada, P. (Author), Thompson, I. (Author), Minniti, D. (Author), Jenkins, J. S. (Author) and Diaz, M. (Author) |
Journal Title | The Astrophysical Journal: an international review of astronomy and astronomical physics |
Journal Citation | 791 (2) |
Article Number | 114 |
Number of Pages | 11 |
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/791/2/114 |
Web Address (URL) | https://iopscience.iop.org/article/10.1088/0004-637X/791/2/114 |
Abstract | We report the detection of GJ 832c, a super-Earth orbiting near the inner edge of the habitable zone of GJ 832, an M dwarf previously known to host a Jupiter analog in a nearly circular 9.4 yr orbit. The combination of precise radial-velocity measurements from three telescopes reveals the presence of a planet with a period of 35.68 ± 0.03 days and minimum mass (m sin i) of 5.4 ± 1.0 Earth masses. GJ 832c moves on a low-eccentricity orbit (e = 0.18 ± 0.13) toward the inner edge of the habitable zone. However, given the large mass of the planet, it seems likely that it would possess a massive atmosphere, which may well render the planet inhospitable. Indeed, it is perhaps more likely that GJ 832c is a 'super-Venus,' featuring significant greenhouse forcing. With an outer giant planet and an interior, potentially rocky planet, the GJ 832 planetary system can be thought of as a miniature version of our own solar system. |
Keywords | astrobiology; planets and satellites: individual (GJ 832); 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 | |
510101. Astrobiology | |
Public Notes | For access to this article, please click on the URL link provided. |
Byline Affiliations | Computational Engineering and Science Research Centre |
University of Hertfordshire, United Kingdom | |
Carnegie Institution of Washington, United States | |
University of London, United Kingdom | |
University of New South Wales | |
Anglo-Australian Observatory, Australia | |
Carnegie Observatories Pasadena, United States | |
Pontifical Catholic University of Chile, Chile | |
University of Chile, Chile | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q2w77/gj-832c-a-super-earth-in-the-habitable-zone
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