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

doi:10.1086/513563

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

^*Corresponding author for this work

Faculty of Science and Engineering

Research output: Contribution to journal › Article › peer-review

26 Citations (Scopus)

Abstract

Doppler velocity measurements from the Anglo-Australian Planet Search reveal planetary mass companions to HD 23127, HD 159868, and a possible second planetary companion to HD 154857. These stars are all G dwarfs. The companions are all in eccentric orbits with periods ranging from 1.2 to >9.3 yr, minimum (M sin i) masses ranging from 1.5 to >4.5 M_J, and semimajor axes between 1 and >4.5 AU. The orbital parameters are updated for the inner planet to HD 154857, while continued monitoring of the outer companion is required to confirm its planet status.

Original language	English
Pages (from-to)	1636-1641
Number of pages	6
Journal	Astrophysical Journal
Volume	660
Issue number	2 I
DOIs	https://doi.org/10.1086/513563
Publication status	Published - 10 May 2007

Keywords

Planetary systems
Stars: individual (HD 23127, HD 154857, HD 159868)

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10.1086/513563

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title = "New planets around three G dwarfs",

abstract = "Doppler velocity measurements from the Anglo-Australian Planet Search reveal planetary mass companions to HD 23127, HD 159868, and a possible second planetary companion to HD 154857. These stars are all G dwarfs. The companions are all in eccentric orbits with periods ranging from 1.2 to >9.3 yr, minimum (M sin i) masses ranging from 1.5 to >4.5 MJ, and semimajor axes between 1 and >4.5 AU. The orbital parameters are updated for the inner planet to HD 154857, while continued monitoring of the outer companion is required to confirm its planet status.",

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author = "O'Toole, {Simon J.} and Butler, {R. Paul} and Tinney, {C. G.} and Jones, {Hugh R A} and Marcy, {Geoffrey W.} and Brad Carter and Chris McCarthy and Jeremy Bailey and Penny, {Alan J.} and Kevin Apps and Debra Fischer",

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T1 - New planets around three G dwarfs

AU - O'Toole, Simon J.

AU - Butler, R. Paul

AU - Tinney, C. G.

AU - Jones, Hugh R A

AU - Marcy, Geoffrey W.

AU - Carter, Brad

AU - McCarthy, Chris

AU - Bailey, Jeremy

AU - Penny, Alan J.

AU - Apps, Kevin

AU - Fischer, Debra

PY - 2007/5/10

Y1 - 2007/5/10

N2 - Doppler velocity measurements from the Anglo-Australian Planet Search reveal planetary mass companions to HD 23127, HD 159868, and a possible second planetary companion to HD 154857. These stars are all G dwarfs. The companions are all in eccentric orbits with periods ranging from 1.2 to >9.3 yr, minimum (M sin i) masses ranging from 1.5 to >4.5 MJ, and semimajor axes between 1 and >4.5 AU. The orbital parameters are updated for the inner planet to HD 154857, while continued monitoring of the outer companion is required to confirm its planet status.

AB - Doppler velocity measurements from the Anglo-Australian Planet Search reveal planetary mass companions to HD 23127, HD 159868, and a possible second planetary companion to HD 154857. These stars are all G dwarfs. The companions are all in eccentric orbits with periods ranging from 1.2 to >9.3 yr, minimum (M sin i) masses ranging from 1.5 to >4.5 MJ, and semimajor axes between 1 and >4.5 AU. The orbital parameters are updated for the inner planet to HD 154857, while continued monitoring of the outer companion is required to confirm its planet status.

KW - Planetary systems

KW - Stars: individual (HD 23127, HD 154857, HD 159868)

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JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2 I

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New planets around three G dwarfs

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Keywords

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