Qatar-1b: a hot Jupiter orbiting a metal-rich K dwarf star

K.~A. Alsubai; N.~R. Parley; D.~M. Bramich; R.~G. West; P.~M. Sorensen; A. Collier Cameron; D.~W. Latham; K. Horne; D.~R. Anderson; G.~Á. Bakos; D.~J.~A. Brown; L.~A. Buchhave; G.~A. Esquerdo; M.~E. Everett; G. Fzrész; J.~D. Hartman; C. Hellier; G.~M. Miller; D. Pollacco; S.~N. Quinn; J.~C. Smith; R.~P. Stefanik; A. Szentgyorgyi

doi:10.1111/j.1365-2966.2011.19316.x

Qatar-1b: a hot Jupiter orbiting a metal-rich K dwarf star

K.~A. Alsubai, N.~R. Parley, D.~M. Bramich, R.~G. West, P.~M. Sorensen, A. Collier Cameron, D.~W. Latham, K. Horne, D.~R. Anderson, G.~Á. Bakos, D.~J.~A. Brown, L.~A. Buchhave, G.~A. Esquerdo, M.~E. Everett, G. Fzrész, J.~D. Hartman, C. Hellier, G.~M. Miller, D. Pollacco, S.~N. QuinnJ.~C. Smith, R.~P. Stefanik, A. Szentgyorgyi

School of Physics and Astronomy

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

59 Citations (Scopus)

Abstract

We report the discovery and initial characterization of Qatar-1b, a hot Jupiter-orbiting metal-rich K dwarf star, the first planet discovered by the Qatar Exoplanet Survey. We describe the strategy used to select candidate transiting planets from photometry generated by the Qatar Exoplanet Survey camera array. We examine the rate of astrophysical and other false positives found during the spectroscopic reconnaissance of the initial batch of candidates. A simultaneous fit to the follow-up radial velocities and photometry of Qatar-1b yields a planetary mass of 1.09 ± 0.08 MJ and a radius of 1.16 ± 0.05 RJ. The orbital period and separation are 1.420 033 ± 0.000 016 d and 0.023 43 ± 0.000 26 au for an orbit assumed to be circular. The stellar density, effective temperature and rotation rate indicate an age greater than 4 Gyr for the system.

Original language	English
Pages (from-to)	709-716
Journal	Monthly Notices of the Royal Astronomical Society
Volume	417
Issue number	1
DOIs	https://doi.org/10.1111/j.1365-2966.2011.19316.x
Publication status	Published - 11 Oct 2011

Keywords

techniques: photometric, techniques: radial velocities, techniques: spectroscopic, stars: individual: Qatar-1, planetary systems

Access to Document

10.1111/j.1365-2966.2011.19316.x

Astrophysics in St Andrews: Astrophysics in St Andrews / SUPA (Continuan of Rolling Grant - XPP089
Bonnell, I. A. (PI), Cameron, A. C. (CoI), Dominik, M. (CoI), Driver, S. P. (CoI), Greaves, J. S. (CoI), Horne, K. D. (CoI), Jardine, M. M. (CoI), Wood, K. (CoI) & Zhao, H. (CoI)
Science & Technology Facilities Council
1/04/09 → 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

Cite this

Alsubai, K. A., Parley, N. R., Bramich, D. M., West, R. G., Sorensen, P. M., Collier Cameron, A., Latham, D. W., Horne, K., Anderson, D. R., Bakos, G. Á., Brown, D. J. A., Buchhave, L. A., Esquerdo, G. A., Everett, M. E., Fzrész, G., Hartman, J. D., Hellier, C., Miller, G. M., Pollacco, D., ... Szentgyorgyi, A. (2011). Qatar-1b: a hot Jupiter orbiting a metal-rich K dwarf star. Monthly Notices of the Royal Astronomical Society, 417(1), 709-716. https://doi.org/10.1111/j.1365-2966.2011.19316.x

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abstract = "We report the discovery and initial characterization of Qatar-1b, a hot Jupiter-orbiting metal-rich K dwarf star, the first planet discovered by the Qatar Exoplanet Survey. We describe the strategy used to select candidate transiting planets from photometry generated by the Qatar Exoplanet Survey camera array. We examine the rate of astrophysical and other false positives found during the spectroscopic reconnaissance of the initial batch of candidates. A simultaneous fit to the follow-up radial velocities and photometry of Qatar-1b yields a planetary mass of 1.09 ± 0.08 MJ and a radius of 1.16 ± 0.05 RJ. The orbital period and separation are 1.420 033 ± 0.000 016 d and 0.023 43 ± 0.000 26 au for an orbit assumed to be circular. The stellar density, effective temperature and rotation rate indicate an age greater than 4 Gyr for the system. ",

keywords = "techniques: photometric, techniques: radial velocities, techniques: spectroscopic, stars: individual: Qatar-1, planetary systems",

author = "K.~A. Alsubai and N.~R. Parley and D.~M. Bramich and R.~G. West and P.~M. Sorensen and {Collier Cameron}, A. and D.~W. Latham and K. Horne and D.~R. Anderson and G.~{\'A}. Bakos and D.~J.~A. Brown and L.~A. Buchhave and G.~A. Esquerdo and M.~E. Everett and G. Fzr{\'e}sz and J.~D. Hartman and C. Hellier and G.~M. Miller and D. Pollacco and S.~N. Quinn and J.~C. Smith and R.~P. Stefanik and A. Szentgyorgyi",

year = "2011",

month = oct,

day = "11",

doi = "10.1111/j.1365-2966.2011.19316.x",

language = "English",

volume = "417",

pages = "709--716",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

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Alsubai, KA, Parley, NR, Bramich, DM, West, RG, Sorensen, PM, Collier Cameron, A, Latham, DW, Horne, K, Anderson, DR, Bakos, GÁ, Brown, DJA, Buchhave, LA, Esquerdo, GA, Everett, ME, Fzrész, G, Hartman, JD, Hellier, C, Miller, GM, Pollacco, D, Quinn, SN, Smith, JC, Stefanik, RP & Szentgyorgyi, A 2011, 'Qatar-1b: a hot Jupiter orbiting a metal-rich K dwarf star', Monthly Notices of the Royal Astronomical Society, vol. 417, no. 1, pp. 709-716. https://doi.org/10.1111/j.1365-2966.2011.19316.x

TY - JOUR

T1 - Qatar-1b: a hot Jupiter orbiting a metal-rich K dwarf star

AU - Alsubai, K.~A.

AU - Parley, N.~R.

AU - Bramich, D.~M.

AU - West, R.~G.

AU - Sorensen, P.~M.

AU - Collier Cameron, A.

AU - Latham, D.~W.

AU - Horne, K.

AU - Anderson, D.~R.

AU - Bakos, G.~Á.

AU - Brown, D.~J.~A.

AU - Buchhave, L.~A.

AU - Esquerdo, G.~A.

AU - Everett, M.~E.

AU - Fzrész, G.

AU - Hartman, J.~D.

AU - Hellier, C.

AU - Miller, G.~M.

AU - Pollacco, D.

AU - Quinn, S.~N.

AU - Smith, J.~C.

AU - Stefanik, R.~P.

AU - Szentgyorgyi, A.

PY - 2011/10/11

Y1 - 2011/10/11

N2 - We report the discovery and initial characterization of Qatar-1b, a hot Jupiter-orbiting metal-rich K dwarf star, the first planet discovered by the Qatar Exoplanet Survey. We describe the strategy used to select candidate transiting planets from photometry generated by the Qatar Exoplanet Survey camera array. We examine the rate of astrophysical and other false positives found during the spectroscopic reconnaissance of the initial batch of candidates. A simultaneous fit to the follow-up radial velocities and photometry of Qatar-1b yields a planetary mass of 1.09 ± 0.08 MJ and a radius of 1.16 ± 0.05 RJ. The orbital period and separation are 1.420 033 ± 0.000 016 d and 0.023 43 ± 0.000 26 au for an orbit assumed to be circular. The stellar density, effective temperature and rotation rate indicate an age greater than 4 Gyr for the system.

AB - We report the discovery and initial characterization of Qatar-1b, a hot Jupiter-orbiting metal-rich K dwarf star, the first planet discovered by the Qatar Exoplanet Survey. We describe the strategy used to select candidate transiting planets from photometry generated by the Qatar Exoplanet Survey camera array. We examine the rate of astrophysical and other false positives found during the spectroscopic reconnaissance of the initial batch of candidates. A simultaneous fit to the follow-up radial velocities and photometry of Qatar-1b yields a planetary mass of 1.09 ± 0.08 MJ and a radius of 1.16 ± 0.05 RJ. The orbital period and separation are 1.420 033 ± 0.000 016 d and 0.023 43 ± 0.000 26 au for an orbit assumed to be circular. The stellar density, effective temperature and rotation rate indicate an age greater than 4 Gyr for the system.

KW - techniques: photometric, techniques: radial velocities, techniques: spectroscopic, stars: individual: Qatar-1, planetary systems

U2 - 10.1111/j.1365-2966.2011.19316.x

DO - 10.1111/j.1365-2966.2011.19316.x

M3 - Article

SN - 0035-8711

VL - 417

SP - 709

EP - 716

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 1

ER -

Qatar-1b: a hot Jupiter orbiting a metal-rich K dwarf star

Abstract

Keywords

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Projects

Astrophysics in St Andrews: Astrophysics in St Andrews / SUPA (Continuan of Rolling Grant - XPP089

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

Cite this