Astrophysics
arXiv:astro-ph/0702213 (astro-ph)
[Submitted on 7 Feb 2007]
Title:New Planets around Three G Dwarfs
Authors:Simon J. O'Toole, R. Paul Butler, C. G. Tinney, Hugh R. A. Jones, Geoffrey W. Marcy, Brad Carter, Chris McCarthy, Jeremy Bailey, Alan J. Penny, Kevin Apps, Debra Fischer
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Abstract: Doppler velocity measurements from the Anglo-Australian Planet Search reveal planetary mass companions to HD23127, HD159868, and a possible second planetary companion to HD154857. These stars are all G dwarfs. The companions are all in eccentric orbits with periods ranging from 1.2 to >9.3yr, minimum (M sin i) masses ranging from 1.5 to >4.5 Mjup, and semimajor axes between 1 and >4.5 AU. The orbital parameters are updated for the inner planet to HD154857, while continued monitoring of the outer companion is required to confirm its planet status.
| Comments: | 23 pages, 5 figures, accepted for publication in ApJ |
| Subjects: | Astrophysics (astro-ph) |
| Cite as: | arXiv:astro-ph/0702213 |
| (or arXiv:astro-ph/0702213v1 for this version) | |
| https://doi.org/10.48550/arXiv.astro-ph/0702213
arXiv-issued DOI via DataCite
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| Journal reference: | Astrophys.J.660:1636-1641,2007 |
| Related DOI: | https://doi.org/10.1086/513563
DOI(s) linking to related resources
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