Retired a stars and their companions. VII. 18 new Jovian planets

John Asher Johnson; Christian Clanton; Andrew W. Howard; Brendan P. Bowler; Gregory W. Henry; Geoffrey W. Marcy; Justin R. Crepp; Michael Endl; William D. Cochran; Phillip J. MacQueen; Jason T. Wright; Howard Isaacson

doi:10.1088/0067-0049/197/2/26

Retired a stars and their companions. VII. 18 new Jovian planets

John Asher Johnson, Christian Clanton, Andrew W. Howard, Brendan P. Bowler, Gregory W. Henry, Geoffrey W. Marcy, Justin R. Crepp, Michael Endl, William D. Cochran, Phillip J. MacQueen, Jason T. Wright, Howard Isaacson

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

113 Scopus citations

Abstract

We report the detection of 18 Jovian planets discovered as part of our Doppler survey of subgiant stars at Keck Observatory, with follow-up Doppler and photometric observations made at McDonald and Fairborn Observatories, respectively. The host stars have masses 0.927 ≤ M/M ≤ 1.95, radii 2.5 ≤ R/R ≤ 8.7, and metallicities -0.46 ≤ [Fe/H] ≤+0.30. The planets have minimum masses 0.9 M _Jup ≤ M_P sin i ≲ 13 M _Jup and semimajor axes a ≥ 0.76 AU. These detections represent a 50% increase in the number of planets known to orbit stars more massive than 1.5 M and provide valuable additional information about the properties of planets around stars more massive than the Sun.

Original language	English (US)
Article number	26
Journal	Astrophysical Journal, Supplement Series
Volume	197
Issue number	2
DOIs	https://doi.org/10.1088/0067-0049/197/2/26
State	Published - Dec 2011

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Access to Document

10.1088/0067-0049/197/2/26

Cite this

@article{12af41fb7f914db98686f2e32b28f428,

title = "Retired a stars and their companions. VII. 18 new Jovian planets",

abstract = "We report the detection of 18 Jovian planets discovered as part of our Doppler survey of subgiant stars at Keck Observatory, with follow-up Doppler and photometric observations made at McDonald and Fairborn Observatories, respectively. The host stars have masses 0.927 ≤ M/M ≤ 1.95, radii 2.5 ≤ R/R ≤ 8.7, and metallicities -0.46 ≤ [Fe/H] ≤+0.30. The planets have minimum masses 0.9 M Jup ≤ MP sin i ≲ 13 M Jup and semimajor axes a ≥ 0.76 AU. These detections represent a 50% increase in the number of planets known to orbit stars more massive than 1.5 M and provide valuable additional information about the properties of planets around stars more massive than the Sun.",

author = "Johnson, {John Asher} and Christian Clanton and Howard, {Andrew W.} and Bowler, {Brendan P.} and Henry, {Gregory W.} and Marcy, {Geoffrey W.} and Crepp, {Justin R.} and Michael Endl and Cochran, {William D.} and MacQueen, {Phillip J.} and Wright, {Jason T.} and Howard Isaacson",

year = "2011",

month = dec,

doi = "10.1088/0067-0049/197/2/26",

language = "English (US)",

volume = "197",

journal = "Astrophysical Journal, Supplement Series",

issn = "0067-0049",

publisher = "American Astronomical Society",

number = "2",

}

TY - JOUR

T1 - Retired a stars and their companions. VII. 18 new Jovian planets

AU - Johnson, John Asher

AU - Clanton, Christian

AU - Howard, Andrew W.

AU - Bowler, Brendan P.

AU - Henry, Gregory W.

AU - Marcy, Geoffrey W.

AU - Crepp, Justin R.

AU - Endl, Michael

AU - Cochran, William D.

AU - MacQueen, Phillip J.

AU - Wright, Jason T.

AU - Isaacson, Howard

PY - 2011/12

Y1 - 2011/12

N2 - We report the detection of 18 Jovian planets discovered as part of our Doppler survey of subgiant stars at Keck Observatory, with follow-up Doppler and photometric observations made at McDonald and Fairborn Observatories, respectively. The host stars have masses 0.927 ≤ M/M ≤ 1.95, radii 2.5 ≤ R/R ≤ 8.7, and metallicities -0.46 ≤ [Fe/H] ≤+0.30. The planets have minimum masses 0.9 M Jup ≤ MP sin i ≲ 13 M Jup and semimajor axes a ≥ 0.76 AU. These detections represent a 50% increase in the number of planets known to orbit stars more massive than 1.5 M and provide valuable additional information about the properties of planets around stars more massive than the Sun.

AB - We report the detection of 18 Jovian planets discovered as part of our Doppler survey of subgiant stars at Keck Observatory, with follow-up Doppler and photometric observations made at McDonald and Fairborn Observatories, respectively. The host stars have masses 0.927 ≤ M/M ≤ 1.95, radii 2.5 ≤ R/R ≤ 8.7, and metallicities -0.46 ≤ [Fe/H] ≤+0.30. The planets have minimum masses 0.9 M Jup ≤ MP sin i ≲ 13 M Jup and semimajor axes a ≥ 0.76 AU. These detections represent a 50% increase in the number of planets known to orbit stars more massive than 1.5 M and provide valuable additional information about the properties of planets around stars more massive than the Sun.

UR - http://www.scopus.com/inward/record.url?scp=83055188825&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=83055188825&partnerID=8YFLogxK

U2 - 10.1088/0067-0049/197/2/26

DO - 10.1088/0067-0049/197/2/26

M3 - Article

AN - SCOPUS:83055188825

SN - 0067-0049

VL - 197

JO - Astrophysical Journal, Supplement Series

JF - Astrophysical Journal, Supplement Series

IS - 2

M1 - 26

ER -

Retired a stars and their companions. VII. 18 new Jovian planets

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Cite this