Qatar-2: a K dwarf orbited by a transiting hot Jupiter and a more massive companion in an outer orbit

Marta L. Bryan; Khalid A. Alsubai; David W. Latham; Neil R. Parley; Andrew Collier Cameron; Samuel N. Quinn; Joshua A. Carter; Benjamin J. Fulton; Perry Berlind; Warren R. Brown; Lars A. Buchhave; Michael L. Calkins; Gilbert A. Esquerdo; Gabor Furesz; Uffe Grae Jorgensen; Keith D. Horne; Robert P. Stefanik; Rachel A. Street; Guillermo Torres; Richard G. West; Martin Dominik; Kennet B. W. Harpsoe; Christine Liebig; Sebastiano Calchi Novati; Davide Ricci; Jesper F. Skottfelt

doi:10.1088/0004-637X/750/1/84

Qatar-2: a K dwarf orbited by a transiting hot Jupiter and a more massive companion in an outer orbit

Marta L. Bryan^*, Khalid A. Alsubai, David W. Latham, Neil R. Parley, Andrew Collier Cameron, Samuel N. Quinn, Joshua A. Carter, Benjamin J. Fulton, Perry Berlind, Warren R. Brown, Lars A. Buchhave, Michael L. Calkins, Gilbert A. Esquerdo, Gabor Furesz, Uffe Grae Jorgensen, Keith D. Horne, Robert P. Stefanik, Rachel A. Street, Guillermo Torres, Richard G. WestMartin Dominik, Kennet B. W. Harpsoe, Christine Liebig, Sebastiano Calchi Novati, Davide Ricci, Jesper F. Skottfelt

^*Corresponding author for this work

School of Physics and Astronomy

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

Abstract

We report the discovery and initial characterization of Qatar-2b, a hot Jupiter transiting a V = 13.3 mag K dwarf in a circular orbit with a short period, P _b = 1.34 days. The mass and radius of Qatar-2b are M_P = 2.49 M _J and R _P = 1.14 R _J, respectively. Radial-velocity monitoring of Qatar-2 over a span of 153 days revealed the presence of a second companion in an outer orbit. The Systemic Console yielded plausible orbits for the outer companion, with periods on the order of a year and a companion mass of at least several M _J. Thus, Qatar-2 joins the short but growing list of systems with a transiting hot Jupiter and an outer companion with a much longer period. This system architecture is in sharp contrast to that found by Kepler for multi-transiting systems, which are dominated by objects smaller than Neptune, usually with tightly spaced orbits that must be nearly coplanar.

Original language	English
Article number	84
Number of pages	11
Journal	Astrophysical Journal
Volume	750
Issue number	1
Early online date	17 Apr 2012
DOIs	https://doi.org/10.1088/0004-637X/750/1/84
Publication status	Published - May 2012

Keywords

Planetary systems
Stars: individual (Qatar-2)
Techniques: photometric
Techniques: radial velocities
Techniques: spectroscopic
Proper-motion stars
Light curves
Planet
Algorithm
Candidates
Parameters
Atmosphere
Spectrum
Systems
Search

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10.1088/0004-637X/750/1/84

Cameron_2012_TAJ_Qatar2
© 2012. The American Astronomical Society. All rights reserved.
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Astrophysics at St Andrews:2012 - 2014: Astrophysics at St Andrews: 2012 - 2014
Horne, K. D. (PI)
Science & Technology Facilities Council
1/10/11 → 31/03/12
Project: Standard
Wide Area Search for Planets: Project support for the Wide Area Search for Planets
Cameron, A. C. (PI)
Science & Technology Facilities Council
1/08/08 → 31/07/11
Project: Standard

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Bryan, M. L., Alsubai, K. A., Latham, D. W., Parley, N. R., Cameron, A. C., Quinn, S. N., Carter, J. A., Fulton, B. J., Berlind, P., Brown, W. R., Buchhave, L. A., Calkins, M. L., Esquerdo, G. A., Furesz, G., Jorgensen, U. G., Horne, K. D., Stefanik, R. P., Street, R. A., Torres, G., ... Skottfelt, J. F. (2012). Qatar-2: a K dwarf orbited by a transiting hot Jupiter and a more massive companion in an outer orbit. Astrophysical Journal, 750(1), Article 84. https://doi.org/10.1088/0004-637X/750/1/84

@article{597c5a436a1549b484c6f1daa6453688,

title = "Qatar-2: a K dwarf orbited by a transiting hot Jupiter and a more massive companion in an outer orbit",

abstract = "We report the discovery and initial characterization of Qatar-2b, a hot Jupiter transiting a V = 13.3 mag K dwarf in a circular orbit with a short period, P b = 1.34 days. The mass and radius of Qatar-2b are M P = 2.49 M J and R P = 1.14 R J, respectively. Radial-velocity monitoring of Qatar-2 over a span of 153 days revealed the presence of a second companion in an outer orbit. The Systemic Console yielded plausible orbits for the outer companion, with periods on the order of a year and a companion mass of at least several M J. Thus, Qatar-2 joins the short but growing list of systems with a transiting hot Jupiter and an outer companion with a much longer period. This system architecture is in sharp contrast to that found by Kepler for multi-transiting systems, which are dominated by objects smaller than Neptune, usually with tightly spaced orbits that must be nearly coplanar.",

keywords = "Planetary systems, Stars: individual (Qatar-2), Techniques: photometric, Techniques: radial velocities, Techniques: spectroscopic, Proper-motion stars, Light curves, Planet, Algorithm, Candidates, Parameters, Atmosphere, Spectrum, Systems, Search",

author = "Bryan, {Marta L.} and Alsubai, {Khalid A.} and Latham, {David W.} and Parley, {Neil R.} and Cameron, {Andrew Collier} and Quinn, {Samuel N.} and Carter, {Joshua A.} and Fulton, {Benjamin J.} and Perry Berlind and Brown, {Warren R.} and Buchhave, {Lars A.} and Calkins, {Michael L.} and Esquerdo, {Gilbert A.} and Gabor Furesz and Jorgensen, {Uffe Grae} and Horne, {Keith D.} and Stefanik, {Robert P.} and Street, {Rachel A.} and Guillermo Torres and West, {Richard G.} and Martin Dominik and Harpsoe, {Kennet B. W.} and Christine Liebig and {Calchi Novati}, Sebastiano and Davide Ricci and Skottfelt, {Jesper F.}",

note = "G.F. acknowledges financial support from the Hungarian OTKA-NFU Mobility grant MB08C 81013. C.L. acknowledges the Qatar Foundation for support from QNRF grant NPRP-09-476-1-078. D.R. (boursier FRIA) acknowledges support from the Communaut{\'e} fran{\c c}aise de Belgique—Actions de recherche concert{\'e}es—Acad{\'e}mie universitaire Wallonie-Europe.",

year = "2012",

month = may,

doi = "10.1088/0004-637X/750/1/84",

language = "English",

volume = "750",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

number = "1",

}

Bryan, ML, Alsubai, KA, Latham, DW, Parley, NR, Cameron, AC, Quinn, SN, Carter, JA, Fulton, BJ, Berlind, P, Brown, WR, Buchhave, LA, Calkins, ML, Esquerdo, GA, Furesz, G, Jorgensen, UG, Horne, KD, Stefanik, RP, Street, RA, Torres, G, West, RG, Dominik, M, Harpsoe, KBW, Liebig, C, Calchi Novati, S, Ricci, D & Skottfelt, JF 2012, 'Qatar-2: a K dwarf orbited by a transiting hot Jupiter and a more massive companion in an outer orbit', Astrophysical Journal, vol. 750, no. 1, 84. https://doi.org/10.1088/0004-637X/750/1/84

TY - JOUR

T1 - Qatar-2

T2 - a K dwarf orbited by a transiting hot Jupiter and a more massive companion in an outer orbit

AU - Bryan, Marta L.

AU - Alsubai, Khalid A.

AU - Latham, David W.

AU - Parley, Neil R.

AU - Cameron, Andrew Collier

AU - Quinn, Samuel N.

AU - Carter, Joshua A.

AU - Fulton, Benjamin J.

AU - Berlind, Perry

AU - Brown, Warren R.

AU - Buchhave, Lars A.

AU - Calkins, Michael L.

AU - Esquerdo, Gilbert A.

AU - Furesz, Gabor

AU - Jorgensen, Uffe Grae

AU - Horne, Keith D.

AU - Stefanik, Robert P.

AU - Street, Rachel A.

AU - Torres, Guillermo

AU - West, Richard G.

AU - Dominik, Martin

AU - Harpsoe, Kennet B. W.

AU - Liebig, Christine

AU - Calchi Novati, Sebastiano

AU - Ricci, Davide

AU - Skottfelt, Jesper F.

N1 - G.F. acknowledges financial support from the Hungarian OTKA-NFU Mobility grant MB08C 81013. C.L. acknowledges the Qatar Foundation for support from QNRF grant NPRP-09-476-1-078. D.R. (boursier FRIA) acknowledges support from the Communauté française de Belgique—Actions de recherche concertées—Académie universitaire Wallonie-Europe.

PY - 2012/5

Y1 - 2012/5

N2 - We report the discovery and initial characterization of Qatar-2b, a hot Jupiter transiting a V = 13.3 mag K dwarf in a circular orbit with a short period, P b = 1.34 days. The mass and radius of Qatar-2b are M P = 2.49 M J and R P = 1.14 R J, respectively. Radial-velocity monitoring of Qatar-2 over a span of 153 days revealed the presence of a second companion in an outer orbit. The Systemic Console yielded plausible orbits for the outer companion, with periods on the order of a year and a companion mass of at least several M J. Thus, Qatar-2 joins the short but growing list of systems with a transiting hot Jupiter and an outer companion with a much longer period. This system architecture is in sharp contrast to that found by Kepler for multi-transiting systems, which are dominated by objects smaller than Neptune, usually with tightly spaced orbits that must be nearly coplanar.

AB - We report the discovery and initial characterization of Qatar-2b, a hot Jupiter transiting a V = 13.3 mag K dwarf in a circular orbit with a short period, P b = 1.34 days. The mass and radius of Qatar-2b are M P = 2.49 M J and R P = 1.14 R J, respectively. Radial-velocity monitoring of Qatar-2 over a span of 153 days revealed the presence of a second companion in an outer orbit. The Systemic Console yielded plausible orbits for the outer companion, with periods on the order of a year and a companion mass of at least several M J. Thus, Qatar-2 joins the short but growing list of systems with a transiting hot Jupiter and an outer companion with a much longer period. This system architecture is in sharp contrast to that found by Kepler for multi-transiting systems, which are dominated by objects smaller than Neptune, usually with tightly spaced orbits that must be nearly coplanar.

KW - Planetary systems

KW - Stars: individual (Qatar-2)

KW - Techniques: photometric

KW - Techniques: radial velocities

KW - Techniques: spectroscopic

KW - Proper-motion stars

KW - Light curves

KW - Planet

KW - Algorithm

KW - Candidates

KW - Parameters

KW - Atmosphere

KW - Spectrum

KW - Systems

KW - Search

U2 - 10.1088/0004-637X/750/1/84

DO - 10.1088/0004-637X/750/1/84

M3 - Article

SN - 0004-637X

VL - 750

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1

M1 - 84

ER -

Qatar-2: a K dwarf orbited by a transiting hot Jupiter and a more massive companion in an outer orbit

Abstract

Keywords

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Projects

Astrophysics at St Andrews:2012 - 2014: Astrophysics at St Andrews: 2012 - 2014

Wide Area Search for Planets: Project support for the Wide Area Search for Planets

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