HAT-P-14b: A 2.2M J exoplanet transiting a bright F star

G. Torres; G. Á Bakos; J. Hartman; Géza Kovcs; R. W. Noyes; D. W. Latham; D. A. Fischer; J. A. Johnson; G. W. Marcy; A. W. Howard; D. D. Sasselov; D. Kipping; B. Sipcz; R. P. Stefanik; G. A. Esquerdo; M. E. Everett; J. Lázár; I. Papp; P. Sári

doi:10.1088/0004-637X/715/1/458

HAT-P-14b: A 2.2M _J exoplanet transiting a bright F star

G. Torres, G. Á Bakos, J. Hartman, Géza Kovcs, R. W. Noyes, D. W. Latham, D. A. Fischer, J. A. Johnson, G. W. Marcy, A. W. Howard, D. D. Sasselov, D. Kipping, B. Sipcz, R. P. Stefanik, G. A. Esquerdo, M. E. Everett, J. Lázár, I. Papp, P. Sári

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

49 Scopus citations

Abstract

We report the discovery of HAT-P-14b, a fairly massive transiting extrasolar planet orbiting the moderately bright star GSC 3086-00152 (V = 9.98), with a period of P = 4.627669 0.000005days. The transit is close to grazing (impact parameter 0.891^+0.007 _-0.008) and has a duration of 0.0912 0.0017days, with a reference epoch of mid-transit of T_c = 2, 454, 875.28938 ± 0.00047 (BJD). The orbit is slightly eccentric (e = 0.107 ± 0.013), and the orientation is such that occultations are unlikely to occur. The host star is a slightly evolved mid-F dwarf with a mass of 1.386 ± 0.045M _⊙, a radius of 1.468 ± 0.054R _⊙, effective temperature 6600 ± 90K, and a slightly metal-rich composition corresponding to [Fe/H] = +0.11 0.08. The planet has a mass of 2.232 ± 0.059M _J and a radius of 1.150 ± 0.052R _J, implying a mean density of 1.82 ± 0.24g cm^-3. Its radius is well reproduced by theoretical models for the 1.3Gyr age of the system if the planet has a heavy-element fraction of about 50M _⊕ (7% of its total mass). The brightness, near-grazing orientation, and other properties of HAT-P-14 make it a favorable transiting system to look for changes in the orbital elements or transit timing variations induced by a possible second planet, and also to place meaningful constraints on the presence of sub-Earth mass or Earth-mass exomoons, by monitoring it for transit duration variations.

Original language	English (US)
Pages (from-to)	458-467
Number of pages	10
Journal	Astrophysical Journal
Volume	715
Issue number	1
DOIs	https://doi.org/10.1088/0004-637X/715/1/458
State	Published - 2010
Externally published	Yes

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Access to Document

10.1088/0004-637X/715/1/458

Cite this

Torres, G., Bakos, G. Á., Hartman, J., Kovcs, G., Noyes, R. W., Latham, D. W., Fischer, D. A., Johnson, J. A., Marcy, G. W., Howard, A. W., Sasselov, D. D., Kipping, D., Sipcz, B., Stefanik, R. P., Esquerdo, G. A., Everett, M. E., Lázár, J., Papp, I., & Sári, P. (2010). HAT-P-14b: A 2.2M _J exoplanet transiting a bright F star. Astrophysical Journal, 715(1), 458-467. https://doi.org/10.1088/0004-637X/715/1/458

@article{80bb1af560d34a7b97465dd646b148ee,

title = "HAT-P-14b: A 2.2M J exoplanet transiting a bright F star",

abstract = "We report the discovery of HAT-P-14b, a fairly massive transiting extrasolar planet orbiting the moderately bright star GSC 3086-00152 (V = 9.98), with a period of P = 4.627669 0.000005days. The transit is close to grazing (impact parameter 0.891+0.007 -0.008) and has a duration of 0.0912 0.0017days, with a reference epoch of mid-transit of Tc = 2, 454, 875.28938 ± 0.00047 (BJD). The orbit is slightly eccentric (e = 0.107 ± 0.013), and the orientation is such that occultations are unlikely to occur. The host star is a slightly evolved mid-F dwarf with a mass of 1.386 ± 0.045M ⊙, a radius of 1.468 ± 0.054R ⊙, effective temperature 6600 ± 90K, and a slightly metal-rich composition corresponding to [Fe/H] = +0.11 0.08. The planet has a mass of 2.232 ± 0.059M J and a radius of 1.150 ± 0.052R J, implying a mean density of 1.82 ± 0.24g cm-3. Its radius is well reproduced by theoretical models for the 1.3Gyr age of the system if the planet has a heavy-element fraction of about 50M ⊕ (7% of its total mass). The brightness, near-grazing orientation, and other properties of HAT-P-14 make it a favorable transiting system to look for changes in the orbital elements or transit timing variations induced by a possible second planet, and also to place meaningful constraints on the presence of sub-Earth mass or Earth-mass exomoons, by monitoring it for transit duration variations.",

author = "G. Torres and Bakos, {G. {\'A}} and J. Hartman and G{\'e}za Kovcs and Noyes, {R. W.} and Latham, {D. W.} and Fischer, {D. A.} and Johnson, {J. A.} and Marcy, {G. W.} and Howard, {A. W.} and Sasselov, {D. D.} and D. Kipping and B. Sipcz and Stefanik, {R. P.} and Esquerdo, {G. A.} and Everett, {M. E.} and J. L{\'a}z{\'a}r and I. Papp and P. S{\'a}ri",

year = "2010",

doi = "10.1088/0004-637X/715/1/458",

language = "English (US)",

volume = "715",

pages = "458--467",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "IOP Publishing Ltd.",

number = "1",

}

Torres, G, Bakos, GÁ , Hartman, J, Kovcs, G, Noyes, RW, Latham, DW, Fischer, DA, Johnson, JA, Marcy, GW, Howard, AW, Sasselov, DD, Kipping, D, Sipcz, B, Stefanik, RP, Esquerdo, GA, Everett, ME, Lázár, J, Papp, I & Sári, P 2010, 'HAT-P-14b: A 2.2M _J exoplanet transiting a bright F star', Astrophysical Journal, vol. 715, no. 1, pp. 458-467. https://doi.org/10.1088/0004-637X/715/1/458

TY - JOUR

T1 - HAT-P-14b

T2 - A 2.2M J exoplanet transiting a bright F star

AU - Torres, G.

AU - Bakos, G. Á

AU - Hartman, J.

AU - Kovcs, Géza

AU - Noyes, R. W.

AU - Latham, D. W.

AU - Fischer, D. A.

AU - Johnson, J. A.

AU - Marcy, G. W.

AU - Howard, A. W.

AU - Sasselov, D. D.

AU - Kipping, D.

AU - Sipcz, B.

AU - Stefanik, R. P.

AU - Esquerdo, G. A.

AU - Everett, M. E.

AU - Lázár, J.

AU - Papp, I.

AU - Sári, P.

PY - 2010

Y1 - 2010

N2 - We report the discovery of HAT-P-14b, a fairly massive transiting extrasolar planet orbiting the moderately bright star GSC 3086-00152 (V = 9.98), with a period of P = 4.627669 0.000005days. The transit is close to grazing (impact parameter 0.891+0.007 -0.008) and has a duration of 0.0912 0.0017days, with a reference epoch of mid-transit of Tc = 2, 454, 875.28938 ± 0.00047 (BJD). The orbit is slightly eccentric (e = 0.107 ± 0.013), and the orientation is such that occultations are unlikely to occur. The host star is a slightly evolved mid-F dwarf with a mass of 1.386 ± 0.045M ⊙, a radius of 1.468 ± 0.054R ⊙, effective temperature 6600 ± 90K, and a slightly metal-rich composition corresponding to [Fe/H] = +0.11 0.08. The planet has a mass of 2.232 ± 0.059M J and a radius of 1.150 ± 0.052R J, implying a mean density of 1.82 ± 0.24g cm-3. Its radius is well reproduced by theoretical models for the 1.3Gyr age of the system if the planet has a heavy-element fraction of about 50M ⊕ (7% of its total mass). The brightness, near-grazing orientation, and other properties of HAT-P-14 make it a favorable transiting system to look for changes in the orbital elements or transit timing variations induced by a possible second planet, and also to place meaningful constraints on the presence of sub-Earth mass or Earth-mass exomoons, by monitoring it for transit duration variations.

AB - We report the discovery of HAT-P-14b, a fairly massive transiting extrasolar planet orbiting the moderately bright star GSC 3086-00152 (V = 9.98), with a period of P = 4.627669 0.000005days. The transit is close to grazing (impact parameter 0.891+0.007 -0.008) and has a duration of 0.0912 0.0017days, with a reference epoch of mid-transit of Tc = 2, 454, 875.28938 ± 0.00047 (BJD). The orbit is slightly eccentric (e = 0.107 ± 0.013), and the orientation is such that occultations are unlikely to occur. The host star is a slightly evolved mid-F dwarf with a mass of 1.386 ± 0.045M ⊙, a radius of 1.468 ± 0.054R ⊙, effective temperature 6600 ± 90K, and a slightly metal-rich composition corresponding to [Fe/H] = +0.11 0.08. The planet has a mass of 2.232 ± 0.059M J and a radius of 1.150 ± 0.052R J, implying a mean density of 1.82 ± 0.24g cm-3. Its radius is well reproduced by theoretical models for the 1.3Gyr age of the system if the planet has a heavy-element fraction of about 50M ⊕ (7% of its total mass). The brightness, near-grazing orientation, and other properties of HAT-P-14 make it a favorable transiting system to look for changes in the orbital elements or transit timing variations induced by a possible second planet, and also to place meaningful constraints on the presence of sub-Earth mass or Earth-mass exomoons, by monitoring it for transit duration variations.

UR - http://www.scopus.com/inward/record.url?scp=77951782722&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77951782722&partnerID=8YFLogxK

U2 - 10.1088/0004-637X/715/1/458

DO - 10.1088/0004-637X/715/1/458

M3 - Article

AN - SCOPUS:77951782722

SN - 0004-637X

VL - 715

SP - 458

EP - 467

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1

ER -

HAT-P-14b: A 2.2M _J exoplanet transiting a bright F star

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this