GJ 832c: A super-earth in the habitable zone

Robert A. Wittenmyer; Mikko Tuomi; R. P. Butler; Hugh Jones; Guillem Anglada-Escudé; Jonathan Horner; C. G. Tinney; J. P. Marshall; B. D. Carter; J. Bailey; G. S. Salter; S. J. O'Toole; D. Wright; J. D. Crane; S. A. Schectman; P. Arriagada; I. Thompson; D. Minniti; J. S. Jenkins; M. Diaz

doi:10.1088/0004-637X/791/2/114

GJ 832c: A super-earth in the habitable zone

Robert A. Wittenmyer, Mikko Tuomi, R. P. Butler, Hugh Jones, Guillem Anglada-Escudé, Jonathan Horner, C. G. Tinney, J. P. Marshall, B. D. Carter, J. Bailey, G. S. Salter, S. J. O'Toole, D. Wright, J. D. Crane, S. A. Schectman, P. Arriagada, I. Thompson, D. Minniti, J. S. Jenkins, M. Diaz

Centre for Astrophysics Research (CAR)

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

39 Citations (Scopus)

42 Downloads (Pure)

Abstract

We report the detection of GJ 832c, a super-Earth orbiting near the inner edge of the habitable zone of GJ 832, an M dwarf previously known to host a Jupiter analog in a nearly circular 9.4 yr orbit. The combination of precise radial-velocity measurements from three telescopes reveals the presence of a planet with a period of 35.68 ± 0.03 days and minimum mass (m sin i) of 5.4 ± 1.0 Earth masses. GJ 832c moves on a low-eccentricity orbit (e = 0.18 ± 0.13) toward the inner edge of the habitable zone. However, given the large mass of the planet, it seems likely that it would possess a massive atmosphere, which may well render the planet inhospitable. Indeed, it is perhaps more likely that GJ 832c is a "super-Venus," featuring significant greenhouse forcing. With an outer giant planet and an interior, potentially rocky planet, the GJ 832 planetary system can be thought of as a miniature version of our own solar system.

Original language	English
Article number	114
Journal	The Astrophysical Journal
Volume	791
Issue number	2
DOIs	https://doi.org/10.1088/0004-637X/791/2/114
Publication status	Published - 5 Aug 2014

Keywords

astrobiology
planets and satellites: individual (GJ 832)
techniques: radial velocities Online-only material: color figures

Access to Document

10.1088/0004-637X/791/2/114

Wittenmyer_2014_ApJ_791_114Final published version, 584 KB

Cite this

Wittenmyer, R. A., Tuomi, M., Butler, R. P., Jones, H., Anglada-Escudé, G., Horner, J., Tinney, C. G., Marshall, J. P., Carter, B. D., Bailey, J., Salter, G. S., O'Toole, S. J., Wright, D., Crane, J. D., Schectman, S. A., Arriagada, P., Thompson, I., Minniti, D., Jenkins, J. S., & Diaz, M. (2014). GJ 832c: A super-earth in the habitable zone. The Astrophysical Journal, 791(2), Article 114. https://doi.org/10.1088/0004-637X/791/2/114

@article{d677fa4b50de4fe1a2ca91657c4c991f,

title = "GJ 832c: A super-earth in the habitable zone",

abstract = "We report the detection of GJ 832c, a super-Earth orbiting near the inner edge of the habitable zone of GJ 832, an M dwarf previously known to host a Jupiter analog in a nearly circular 9.4 yr orbit. The combination of precise radial-velocity measurements from three telescopes reveals the presence of a planet with a period of 35.68 ± 0.03 days and minimum mass (m sin i) of 5.4 ± 1.0 Earth masses. GJ 832c moves on a low-eccentricity orbit (e = 0.18 ± 0.13) toward the inner edge of the habitable zone. However, given the large mass of the planet, it seems likely that it would possess a massive atmosphere, which may well render the planet inhospitable. Indeed, it is perhaps more likely that GJ 832c is a {"}super-Venus,{"} featuring significant greenhouse forcing. With an outer giant planet and an interior, potentially rocky planet, the GJ 832 planetary system can be thought of as a miniature version of our own solar system.",

keywords = "astrobiology, planets and satellites: individual (GJ 832), techniques: radial velocities Online-only material: color figures",

author = "Wittenmyer, {Robert A.} and Mikko Tuomi and Butler, {R. P.} and Hugh Jones and Guillem Anglada-Escud{\'e} and Jonathan Horner and Tinney, {C. G.} and Marshall, {J. P.} and Carter, {B. D.} and J. Bailey and Salter, {G. S.} and O'Toole, {S. J.} and D. Wright and Crane, {J. D.} and Schectman, {S. A.} and P. Arriagada and I. Thompson and D. Minniti and Jenkins, {J. S.} and M. Diaz",

note = "Robert A. Wittenmyer, et al., 'GJ832c: A super-Earth in the habitable zone', The Astrophysical Journal, Vol. 791 (2), first published 5 August 2014. The version of record is available at doi: https://doi.org/10.1088/0004-637X/791/2/114 {\textcopyright} 2014. The American Astronomical Society. All rights reserved.",

year = "2014",

month = aug,

day = "5",

doi = "10.1088/0004-637X/791/2/114",

language = "English",

volume = "791",

journal = "The Astrophysical Journal",

issn = "0004-637X",

publisher = "IOP Publishing Ltd.",

number = "2",

}

Wittenmyer, RA, Tuomi, M, Butler, RP, Jones, H, Anglada-Escudé, G, Horner, J, Tinney, CG, Marshall, JP, Carter, BD, Bailey, J, Salter, GS, O'Toole, SJ, Wright, D, Crane, JD, Schectman, SA, Arriagada, P, Thompson, I, Minniti, D, Jenkins, JS & Diaz, M 2014, 'GJ 832c: A super-earth in the habitable zone', The Astrophysical Journal, vol. 791, no. 2, 114. https://doi.org/10.1088/0004-637X/791/2/114

TY - JOUR

T1 - GJ 832c

T2 - A super-earth in the habitable zone

AU - Wittenmyer, Robert A.

AU - Tuomi, Mikko

AU - Butler, R. P.

AU - Jones, Hugh

AU - Anglada-Escudé, Guillem

AU - Horner, Jonathan

AU - Tinney, C. G.

AU - Marshall, J. P.

AU - Carter, B. D.

AU - Bailey, J.

AU - Salter, G. S.

AU - O'Toole, S. J.

AU - Wright, D.

AU - Crane, J. D.

AU - Schectman, S. A.

AU - Arriagada, P.

AU - Thompson, I.

AU - Minniti, D.

AU - Jenkins, J. S.

AU - Diaz, M.

N1 - Robert A. Wittenmyer, et al., 'GJ832c: A super-Earth in the habitable zone', The Astrophysical Journal, Vol. 791 (2), first published 5 August 2014. The version of record is available at doi: https://doi.org/10.1088/0004-637X/791/2/114 © 2014. The American Astronomical Society. All rights reserved.

PY - 2014/8/5

Y1 - 2014/8/5

N2 - We report the detection of GJ 832c, a super-Earth orbiting near the inner edge of the habitable zone of GJ 832, an M dwarf previously known to host a Jupiter analog in a nearly circular 9.4 yr orbit. The combination of precise radial-velocity measurements from three telescopes reveals the presence of a planet with a period of 35.68 ± 0.03 days and minimum mass (m sin i) of 5.4 ± 1.0 Earth masses. GJ 832c moves on a low-eccentricity orbit (e = 0.18 ± 0.13) toward the inner edge of the habitable zone. However, given the large mass of the planet, it seems likely that it would possess a massive atmosphere, which may well render the planet inhospitable. Indeed, it is perhaps more likely that GJ 832c is a "super-Venus," featuring significant greenhouse forcing. With an outer giant planet and an interior, potentially rocky planet, the GJ 832 planetary system can be thought of as a miniature version of our own solar system.

AB - We report the detection of GJ 832c, a super-Earth orbiting near the inner edge of the habitable zone of GJ 832, an M dwarf previously known to host a Jupiter analog in a nearly circular 9.4 yr orbit. The combination of precise radial-velocity measurements from three telescopes reveals the presence of a planet with a period of 35.68 ± 0.03 days and minimum mass (m sin i) of 5.4 ± 1.0 Earth masses. GJ 832c moves on a low-eccentricity orbit (e = 0.18 ± 0.13) toward the inner edge of the habitable zone. However, given the large mass of the planet, it seems likely that it would possess a massive atmosphere, which may well render the planet inhospitable. Indeed, it is perhaps more likely that GJ 832c is a "super-Venus," featuring significant greenhouse forcing. With an outer giant planet and an interior, potentially rocky planet, the GJ 832 planetary system can be thought of as a miniature version of our own solar system.

KW - astrobiology

KW - planets and satellites: individual (GJ 832)

KW - techniques: radial velocities Online-only material: color figures

UR - http://www.scopus.com/inward/record.url?scp=84905650547&partnerID=8YFLogxK

U2 - 10.1088/0004-637X/791/2/114

DO - 10.1088/0004-637X/791/2/114

M3 - Article

AN - SCOPUS:84905650547

SN - 0004-637X

VL - 791

JO - The Astrophysical Journal

JF - The Astrophysical Journal

IS - 2

M1 - 114

ER -

GJ 832c: A super-earth in the habitable zone

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this