WASP-14b: 7.3 M J transiting planet in an eccentric orbit

Y. C. Joshi, D. Pollacco, A. Collier Cameron, I. Skillen, E. Simpson, I. Steele, R. A. Street, H. C. Stempels, D. J. Christian, L. Hebb, F. Bouchy, N. P. Gibson, G. Hébrard, F. P. Keenan, B. Loeillet, J. Meaburn, C. Moutou, B. Smalley, I. Todd, R. G. WestD. R. Anderson, S. Bentley, B. Enoch, C. A. Haswell, C. Hellier, K. Horne, J. Irwin, T. A. Lister, I. McDonald, P. Maxted, M. Mayor, A. J. Norton, N. Parley, C. Perrier, F. Pont, D. Queloz, R. Ryans, A. M S Smith, S. Udry, P. J. Wheatley, D. M. Wilson

Research output: Contribution to journalArticle

74 Citations (Scopus)

Abstract

We report the discovery of a 7.3 M J exoplanet WASP-14b, one of the most massive transiting exoplanets observed to date. The planet orbits the 10th-magnitude F5V star USNO-B1 11118-0262485 with a period of 2.243 752 d and orbital eccentricity e = 0.09. A simultaneous fit of the transit light curve and radial velocity measurements yields a planetary mass of 7.3 ± 0.5 M J and a radius of 1.28 ± 0.08 R J. This leads to a mean density of about 4.6 g cm -3 making it the densest transiting exoplanets yet found at an orbital period less than 3 d. We estimate this system to be at a distance of 160 ± 20 pc. Spectral analysis of the host star reveals a temperature of 6475 ± 100 K, log g = 4.07 cm s -2 and v sin i = 4.9 ± 1.0 km s -1, and also a high lithium abundance, log N(Li) = 2.84 ± 0.05. The stellar density, effective temperature and rotation rate suggest an age for the system of about 0.5-1.0 Gyr.

Original languageEnglish
Pages (from-to)1532-1538
Number of pages7
JournalMonthly Notices of the Royal Astronomical Society
Volume392
Issue number4
DOIs
Publication statusPublished - 1 Feb 2009
Externally publishedYes

Fingerprint

eccentric orbits
extrasolar planets
planets
planet
lithium
eccentricity
spectral analysis
planetary mass
stars
orbitals
temperature
transit
velocity measurement
radial velocity
light curve
spectrum analysis
orbits
radii
estimates
rate

Keywords

  • Stars: individual: GSC 01482-00882
  • Techniques: photometric
  • Techniques: radial velocities

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Joshi, Y. C., Pollacco, D., Cameron, A. C., Skillen, I., Simpson, E., Steele, I., ... Wilson, D. M. (2009). WASP-14b: 7.3 M J transiting planet in an eccentric orbit. Monthly Notices of the Royal Astronomical Society, 392(4), 1532-1538. https://doi.org/10.1111/j.1365-2966.2008.14178.x

WASP-14b : 7.3 M J transiting planet in an eccentric orbit. / Joshi, Y. C.; Pollacco, D.; Cameron, A. Collier; Skillen, I.; Simpson, E.; Steele, I.; Street, R. A.; Stempels, H. C.; Christian, D. J.; Hebb, L.; Bouchy, F.; Gibson, N. P.; Hébrard, G.; Keenan, F. P.; Loeillet, B.; Meaburn, J.; Moutou, C.; Smalley, B.; Todd, I.; West, R. G.; Anderson, D. R.; Bentley, S.; Enoch, B.; Haswell, C. A.; Hellier, C.; Horne, K.; Irwin, J.; Lister, T. A.; McDonald, I.; Maxted, P.; Mayor, M.; Norton, A. J.; Parley, N.; Perrier, C.; Pont, F.; Queloz, D.; Ryans, R.; Smith, A. M S; Udry, S.; Wheatley, P. J.; Wilson, D. M.

In: Monthly Notices of the Royal Astronomical Society, Vol. 392, No. 4, 01.02.2009, p. 1532-1538.

Research output: Contribution to journalArticle

Joshi, YC, Pollacco, D, Cameron, AC, Skillen, I, Simpson, E, Steele, I, Street, RA, Stempels, HC, Christian, DJ, Hebb, L, Bouchy, F, Gibson, NP, Hébrard, G, Keenan, FP, Loeillet, B, Meaburn, J, Moutou, C, Smalley, B, Todd, I, West, RG, Anderson, DR, Bentley, S, Enoch, B, Haswell, CA, Hellier, C, Horne, K, Irwin, J, Lister, TA, McDonald, I, Maxted, P, Mayor, M, Norton, AJ, Parley, N, Perrier, C, Pont, F, Queloz, D, Ryans, R, Smith, AMS, Udry, S, Wheatley, PJ & Wilson, DM 2009, 'WASP-14b: 7.3 M J transiting planet in an eccentric orbit', Monthly Notices of the Royal Astronomical Society, vol. 392, no. 4, pp. 1532-1538. https://doi.org/10.1111/j.1365-2966.2008.14178.x
Joshi YC, Pollacco D, Cameron AC, Skillen I, Simpson E, Steele I et al. WASP-14b: 7.3 M J transiting planet in an eccentric orbit. Monthly Notices of the Royal Astronomical Society. 2009 Feb 1;392(4):1532-1538. https://doi.org/10.1111/j.1365-2966.2008.14178.x
Joshi, Y. C. ; Pollacco, D. ; Cameron, A. Collier ; Skillen, I. ; Simpson, E. ; Steele, I. ; Street, R. A. ; Stempels, H. C. ; Christian, D. J. ; Hebb, L. ; Bouchy, F. ; Gibson, N. P. ; Hébrard, G. ; Keenan, F. P. ; Loeillet, B. ; Meaburn, J. ; Moutou, C. ; Smalley, B. ; Todd, I. ; West, R. G. ; Anderson, D. R. ; Bentley, S. ; Enoch, B. ; Haswell, C. A. ; Hellier, C. ; Horne, K. ; Irwin, J. ; Lister, T. A. ; McDonald, I. ; Maxted, P. ; Mayor, M. ; Norton, A. J. ; Parley, N. ; Perrier, C. ; Pont, F. ; Queloz, D. ; Ryans, R. ; Smith, A. M S ; Udry, S. ; Wheatley, P. J. ; Wilson, D. M. / WASP-14b : 7.3 M J transiting planet in an eccentric orbit. In: Monthly Notices of the Royal Astronomical Society. 2009 ; Vol. 392, No. 4. pp. 1532-1538.
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abstract = "We report the discovery of a 7.3 M J exoplanet WASP-14b, one of the most massive transiting exoplanets observed to date. The planet orbits the 10th-magnitude F5V star USNO-B1 11118-0262485 with a period of 2.243 752 d and orbital eccentricity e = 0.09. A simultaneous fit of the transit light curve and radial velocity measurements yields a planetary mass of 7.3 ± 0.5 M J and a radius of 1.28 ± 0.08 R J. This leads to a mean density of about 4.6 g cm -3 making it the densest transiting exoplanets yet found at an orbital period less than 3 d. We estimate this system to be at a distance of 160 ± 20 pc. Spectral analysis of the host star reveals a temperature of 6475 ± 100 K, log g = 4.07 cm s -2 and v sin i = 4.9 ± 1.0 km s -1, and also a high lithium abundance, log N(Li) = 2.84 ± 0.05. The stellar density, effective temperature and rotation rate suggest an age for the system of about 0.5-1.0 Gyr.",
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TY - JOUR

T1 - WASP-14b

T2 - 7.3 M J transiting planet in an eccentric orbit

AU - Joshi, Y. C.

AU - Pollacco, D.

AU - Cameron, A. Collier

AU - Skillen, I.

AU - Simpson, E.

AU - Steele, I.

AU - Street, R. A.

AU - Stempels, H. C.

AU - Christian, D. J.

AU - Hebb, L.

AU - Bouchy, F.

AU - Gibson, N. P.

AU - Hébrard, G.

AU - Keenan, F. P.

AU - Loeillet, B.

AU - Meaburn, J.

AU - Moutou, C.

AU - Smalley, B.

AU - Todd, I.

AU - West, R. G.

AU - Anderson, D. R.

AU - Bentley, S.

AU - Enoch, B.

AU - Haswell, C. A.

AU - Hellier, C.

AU - Horne, K.

AU - Irwin, J.

AU - Lister, T. A.

AU - McDonald, I.

AU - Maxted, P.

AU - Mayor, M.

AU - Norton, A. J.

AU - Parley, N.

AU - Perrier, C.

AU - Pont, F.

AU - Queloz, D.

AU - Ryans, R.

AU - Smith, A. M S

AU - Udry, S.

AU - Wheatley, P. J.

AU - Wilson, D. M.

PY - 2009/2/1

Y1 - 2009/2/1

N2 - We report the discovery of a 7.3 M J exoplanet WASP-14b, one of the most massive transiting exoplanets observed to date. The planet orbits the 10th-magnitude F5V star USNO-B1 11118-0262485 with a period of 2.243 752 d and orbital eccentricity e = 0.09. A simultaneous fit of the transit light curve and radial velocity measurements yields a planetary mass of 7.3 ± 0.5 M J and a radius of 1.28 ± 0.08 R J. This leads to a mean density of about 4.6 g cm -3 making it the densest transiting exoplanets yet found at an orbital period less than 3 d. We estimate this system to be at a distance of 160 ± 20 pc. Spectral analysis of the host star reveals a temperature of 6475 ± 100 K, log g = 4.07 cm s -2 and v sin i = 4.9 ± 1.0 km s -1, and also a high lithium abundance, log N(Li) = 2.84 ± 0.05. The stellar density, effective temperature and rotation rate suggest an age for the system of about 0.5-1.0 Gyr.

AB - We report the discovery of a 7.3 M J exoplanet WASP-14b, one of the most massive transiting exoplanets observed to date. The planet orbits the 10th-magnitude F5V star USNO-B1 11118-0262485 with a period of 2.243 752 d and orbital eccentricity e = 0.09. A simultaneous fit of the transit light curve and radial velocity measurements yields a planetary mass of 7.3 ± 0.5 M J and a radius of 1.28 ± 0.08 R J. This leads to a mean density of about 4.6 g cm -3 making it the densest transiting exoplanets yet found at an orbital period less than 3 d. We estimate this system to be at a distance of 160 ± 20 pc. Spectral analysis of the host star reveals a temperature of 6475 ± 100 K, log g = 4.07 cm s -2 and v sin i = 4.9 ± 1.0 km s -1, and also a high lithium abundance, log N(Li) = 2.84 ± 0.05. The stellar density, effective temperature and rotation rate suggest an age for the system of about 0.5-1.0 Gyr.

KW - Stars: individual: GSC 01482-00882

KW - Techniques: photometric

KW - Techniques: radial velocities

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