A Jupiter-like planet orbiting the nearby M dwarf GJ 832
Article
Article Title | A Jupiter-like planet orbiting the nearby M dwarf GJ 832 |
---|---|
ERA Journal ID | 45091 |
Article Category | Article |
Authors | Bailey, Jeremy (Author), Butler, R. Paul (Author), Tinney, C. G. (Author), Jones, Hugh R. A. (Author), O'Toole, Simon (Author), Carter, Brad D. (Author) and Marcy, Geoffrey W. (Author) |
Journal Title | The Astrophysical Journal Letters |
Journal Citation | 690 (1), pp. 743-747 |
Number of Pages | 5 |
Year | 2009 |
Publisher | IOP Publishing |
Place of Publication | United Kingdom |
ISSN | 2041-8205 |
2041-8213 | |
Digital Object Identifier (DOI) | https://doi.org/10.1088/0004-637X/690/1/743 |
Web Address (URL) | https://iopscience.iop.org/article/10.1088/0004-637X/690/1/743 |
Abstract | Precision Doppler velocity measurements from the Anglo-Australian Telescope reveal a planet with a 9.4 ± 0.4 year period orbiting the M1.5 dwarf GJ 832. Within measurement uncertainty the orbit is circular, and the minimum mass (msin i) of the planet is 0.64 ± 0.06 M JUP. GJ 832 appears to be depleted in metals by at least 50% relative to the Sun, as are a significant fraction of the M dwarfs known to host exoplanets. GJ 832 adds another Jupiter-mass planet to the known census of M dwarf exoplanets, which currently includes a significant number of Neptune-mass planets. GJ 832 is an excellent candidate for astrometric orbit determination with αsin i = 0.95 mas. GJ 832b has the second largest angular distance from its star among radial velocity detected exoplanets (0.69 arcsec) making it a potentially interesting target for future direct detection. |
Keywords | planetary systems; stars; individual; GJ 832 |
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 | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | Macquarie University |
Carnegie Institution of Washington, United States | |
University of New South Wales | |
University of Hertfordshire, United Kingdom | |
Department of Biological and Physical Sciences | |
University of California, United States |
https://research.usq.edu.au/item/9z338/a-jupiter-like-planet-orbiting-the-nearby-m-dwarf-gj-832
Download files
1940
total views214
total downloads5
views this month0
downloads this month