HAT-P-27b: A Hot Jupiter Transiting a G Star on a 3 Day Orbit

B. Beky...[et al.]; G.A. Bakos; J. Hartman; G. Torres; Lars C. Astrup Buchhave

doi:10.1088/0004-637X/734/2/109

HAT-P-27b: A Hot Jupiter Transiting a G Star on a 3 Day Orbit

B. Beky...[et al.], G.A. Bakos, J. Hartman, G. Torres, Lars C. Astrup Buchhave

29 Citations (Scopus)

Abstract

We report the discovery of HAT-P-27b, an exoplanet transiting the moderately bright G8 dwarf star GSC 0333-00351 (V = 12.214). The orbital period is 3.039586 ± 0.000012 days, the reference epoch of transit is 2455186.01879 ± 0.00054 (BJD), and the transit duration is 0.0705 ± 0.0019 days. The host star with its effective temperature 5300 ± 90 K is somewhat cooler than the Sun and is more metal-rich with a metallicity of +0.29 ± 0.10. Its mass is 0.94 ± 0.04 M_⊙ and radius is 0.90^+0.05 _{- 0.04} R_⊙. For the planetary companion we determine a mass of 0.660 ± 0.033 M _J and radius of 1.038^+0.077 _{- 0.058} R _J. For the 30 known transiting exoplanets between 0.3 M _J and 0.8 M _J, a negative correlation between host star metallicity and planetary radius and an additional dependence of planetary radius on equilibrium temperature are confirmed at a high level of statistical significance.

Original language	English
Journal	Astrophysical Journal
Volume	734
Issue number	2
Pages (from-to)	109
ISSN	0004-637X
DOIs	https://doi.org/10.1088/0004-637X/734/2/109
Publication status	Published - 10 Jun 2011

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@article{d0a375110c424a14ad064beedbcac381,

title = "HAT-P-27b: A Hot Jupiter Transiting a G Star on a 3 Day Orbit",

abstract = "We report the discovery of HAT-P-27b, an exoplanet transiting the moderately bright G8 dwarf star GSC 0333-00351 (V = 12.214). The orbital period is 3.039586 ± 0.000012 days, the reference epoch of transit is 2455186.01879 ± 0.00054 (BJD), and the transit duration is 0.0705 ± 0.0019 days. The host star with its effective temperature 5300 ± 90 K is somewhat cooler than the Sun and is more metal-rich with a metallicity of +0.29 ± 0.10. Its mass is 0.94 ± 0.04 M⊙ and radius is 0.90+0.05 - 0.04 R⊙. For the planetary companion we determine a mass of 0.660 ± 0.033 M J and radius of 1.038+0.077 - 0.058 R J. For the 30 known transiting exoplanets between 0.3 M J and 0.8 M J, a negative correlation between host star metallicity and planetary radius and an additional dependence of planetary radius on equilibrium temperature are confirmed at a high level of statistical significance.",

author = "{Beky...[et al.]}, B. and G.A. Bakos and J. Hartman and G. Torres and Buchhave, {Lars C. Astrup}",

year = "2011",

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language = "English",

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journal = "Astrophysical Journal",

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TY - JOUR

T1 - HAT-P-27b

T2 - A Hot Jupiter Transiting a G Star on a 3 Day Orbit

AU - Beky...[et al.], B.

AU - Bakos, G.A.

AU - Hartman, J.

AU - Torres, G.

AU - Buchhave, Lars C. Astrup

PY - 2011/6/10

Y1 - 2011/6/10

N2 - We report the discovery of HAT-P-27b, an exoplanet transiting the moderately bright G8 dwarf star GSC 0333-00351 (V = 12.214). The orbital period is 3.039586 ± 0.000012 days, the reference epoch of transit is 2455186.01879 ± 0.00054 (BJD), and the transit duration is 0.0705 ± 0.0019 days. The host star with its effective temperature 5300 ± 90 K is somewhat cooler than the Sun and is more metal-rich with a metallicity of +0.29 ± 0.10. Its mass is 0.94 ± 0.04 M⊙ and radius is 0.90+0.05 - 0.04 R⊙. For the planetary companion we determine a mass of 0.660 ± 0.033 M J and radius of 1.038+0.077 - 0.058 R J. For the 30 known transiting exoplanets between 0.3 M J and 0.8 M J, a negative correlation between host star metallicity and planetary radius and an additional dependence of planetary radius on equilibrium temperature are confirmed at a high level of statistical significance.

AB - We report the discovery of HAT-P-27b, an exoplanet transiting the moderately bright G8 dwarf star GSC 0333-00351 (V = 12.214). The orbital period is 3.039586 ± 0.000012 days, the reference epoch of transit is 2455186.01879 ± 0.00054 (BJD), and the transit duration is 0.0705 ± 0.0019 days. The host star with its effective temperature 5300 ± 90 K is somewhat cooler than the Sun and is more metal-rich with a metallicity of +0.29 ± 0.10. Its mass is 0.94 ± 0.04 M⊙ and radius is 0.90+0.05 - 0.04 R⊙. For the planetary companion we determine a mass of 0.660 ± 0.033 M J and radius of 1.038+0.077 - 0.058 R J. For the 30 known transiting exoplanets between 0.3 M J and 0.8 M J, a negative correlation between host star metallicity and planetary radius and an additional dependence of planetary radius on equilibrium temperature are confirmed at a high level of statistical significance.

U2 - 10.1088/0004-637X/734/2/109

DO - 10.1088/0004-637X/734/2/109

M3 - Journal article

SN - 0004-637X

VL - 734

SP - 109

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2

ER -

HAT-P-27b: A Hot Jupiter Transiting a G Star on a 3 Day Orbit

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