A Jupiter-like planet orbiting the nearby M dwarf GJ 832

Jeremy Bailey; R. Paul Butler; C. G. Tinney; Hugh R A Jones; Simon O'Toole; Brad D. Carter; Geoffrey W. Marcy

doi:10.1088/0004-637X/690/1/743

A Jupiter-like planet orbiting the nearby M dwarf GJ 832

Jeremy Bailey^*, R. Paul Butler, C. G. Tinney, Hugh R A Jones, Simon O'Toole, Brad D. Carter, Geoffrey W. Marcy

^*Corresponding author for this work

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

72 Citations (Scopus)

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.

Original language	English
Pages (from-to)	743-747
Number of pages	5
Journal	The Astrophysical Journal
Volume	690
Issue number	1
DOIs	https://doi.org/10.1088/0004-637X/690/1/743
Publication status	Published - 2009

Keywords

Planetary systems
Stars: individual (GJ 832)

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title = "A Jupiter-like planet orbiting the nearby M dwarf GJ 832",

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)",

author = "Jeremy Bailey and Butler, \{R. Paul\} and Tinney, \{C. G.\} and Jones, \{Hugh R A\} and Simon O'Toole and Carter, \{Brad D.\} and Marcy, \{Geoffrey W.\}",

year = "2009",

doi = "10.1088/0004-637X/690/1/743",

language = "English",

volume = "690",

pages = "743--747",

journal = "The Astrophysical Journal",

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T1 - A Jupiter-like planet orbiting the nearby M dwarf GJ 832

AU - Bailey, Jeremy

AU - Butler, R. Paul

AU - Tinney, C. G.

AU - Jones, Hugh R A

AU - O'Toole, Simon

AU - Carter, Brad D.

AU - Marcy, Geoffrey W.

PY - 2009

Y1 - 2009

N2 - 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.

AB - 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.

KW - Planetary systems

KW - Stars: individual (GJ 832)

UR - https://www.scopus.com/pages/publications/65549141873

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SP - 743

EP - 747

JO - The Astrophysical Journal

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A Jupiter-like planet orbiting the nearby M dwarf GJ 832

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Keywords

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