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New Planets around Three G Dwarfs

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.

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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. 2007-02-07. New Planets around Three G Dwarfs. https://doi.org/10.1086/513563

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