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

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

School of Physics and Astronomy

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

27 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 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.

Original language	English
Pages (from-to)	1636-1641
Number of pages	6
Journal	Astrophysical Journal Letters
Volume	660
Publication status	Published - 10 May 2007

Keywords

planetary systems
stars : individual (HD 23127, HD 154857, HD 159868)
EXTRASOLAR PLANETS
SPACED DATA
STARS
SEARCH
PRECISION
HD-160691
KECK
COMPANIONS
EXOPLANETS
CATALOG

Cite this

@article{126af350605d49a5ad25672481ef31a8,

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.",

keywords = "planetary systems, stars : individual (HD 23127, HD 154857, HD 159868), EXTRASOLAR PLANETS, SPACED DATA, STARS, SEARCH, PRECISION, HD-160691, KECK, COMPANIONS, EXOPLANETS, CATALOG",

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",

year = "2007",

month = may,

day = "10",

language = "English",

volume = "660",

pages = "1636--1641",

journal = "Astrophysical Journal Letters",

issn = "2041-8205",

publisher = "American Astronomical Society",

}

TY - JOUR

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)

KW - EXTRASOLAR PLANETS

KW - SPACED DATA

KW - STARS

KW - SEARCH

KW - PRECISION

KW - HD-160691

KW - KECK

KW - COMPANIONS

KW - EXOPLANETS

KW - CATALOG

M3 - Article

SN - 2041-8205

VL - 660

SP - 1636

EP - 1641

JO - Astrophysical Journal Letters

JF - Astrophysical Journal Letters

ER -

New planets around three G dwarfs

Abstract

Keywords

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