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

  1. Y. C. Joshi1,*,
  2. D. Pollacco1,
  3. A. Collier Cameron2,
  4. I. Skillen3,
  5. E. Simpson1,
  6. I. Steele4,
  7. R. A. Street5,
  8. H. C. Stempels2,
  9. D. J. Christian1,
  10. L. Hebb2,
  11. F. Bouchy6,
  12. N. P. Gibson1,
  13. G. Hébrard6,
  14. F. P. Keenan1,
  15. B. Loeillet6,7,
  16. J. Meaburn8,
  17. C. Moutou7,
  18. B. Smalley9,
  19. I. Todd1,
  20. R. G. West10,
  21. D. R. Anderson9,
  22. S. Bentley9,
  23. B. Enoch11,
  24. C. A. Haswell11,
  25. C. Hellier9,
  26. K. Horne2,
  27. J. Irwin12,
  28. T. A. Lister5,
  29. I. McDonald9,
  30. P. Maxted9,
  31. M. Mayor13,
  32. A. J. Norton11,
  33. N. Parley11,
  34. C. Perrier14,
  35. F. Pont15,
  36. D. Queloz13,
  37. R. Ryans1,
  38. A. M. S. Smith2,
  39. S. Udry13,
  40. P. J. Wheatley16,
  41. D. M. Wilson9

Article first published online: 29 DEC 2008

DOI: 10.1111/j.1365-2966.2008.14178.x

Issue

Monthly Notices of the Royal Astronomical Society

Monthly Notices of the Royal Astronomical Society

Volume 392, Issue 4, pages 1532–1538, February 2009

Additional Information

How to Cite

Joshi, Y. C., Pollacco, D., Cameron, A. C., 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. and Wilson, D. M. (2009), WASP-14b: 7.3 MJ transiting planet in an eccentric orbit. Monthly Notices of the Royal Astronomical Society, 392: 1532–1538. doi: 10.1111/j.1365-2966.2008.14178.x

Author Information

  1. 1

    Astrophysics Research Centre, School of Mathematics and Physics, Queen's University, University Road, Belfast BT7 1NN

  2. 2

    School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, Fife KY16 9SS

  3. 3

    Isaac Newton Group of Telescopes, Apartado de Correos 321, E-38700 Santa Cruz de la Palma, Tenerife, Spain

  4. 4

    Astrophysics Research Institute, Liverpool John Moores University, Twelve Quays House, Egerton Wharf, Birkenhead CH41 1LD

  5. 5

    Las Cumbres Observatory, 6740 Cortona Dr. Suite 102, Santa Barbara, CA 93117, USA

  6. 6

    Institut d'Astrophysique de Paris, UMR 7095 CNRS, Université Pierre and Marie Curie, 98bis bvd. Arago, 75014 Paris, France

  7. 7

    Laboratoire d'Astrophysique de Marseille, CNRS (UMR 6110), BP8, 13376 Marseille Cedex 12, France

  8. 8

    Department of Physics and Astronomy, University of Manchester, Manchester, Macclesfield, Cheshire, SK11 9DL

  9. 9

    Astrophysics Group, Keele University, Staffordshire ST5 5BG

  10. 10

    Department of Physics and Astronomy, University of Leicester, Leicester, LE1 7RH

  11. 11

    Department of Physics and Astronomy, The Open University, Milton Keynes, MK7 6AA

  12. 12

    Harvard-Smithsonian Center for Astrophysics, 60 Garden Street MS-16, Cambridge, MA 02138-1516, USA

  13. 13

    Observatoire de Genève, Université de Genève, 51 Ch. des Maillettes, 1290 Sauverny, Switzerland

  14. 14

    Laboratoire d'AstrOphysique, Observatoire de Grenoble, Univ. J. Fourier - BP 53, F-38041 Grenoble Cedex 9, France

  15. 15

    Physikalisches Institu, University of Bern, Sidlerstrass 5, 3012 Bern, Switzerland

  16. 16

    Department of Physics, University of Warwick, Coventry CV4 7AL

* E-mail: y.joshi@qub.ac.uk

Publication History

  1. Issue published online: 16 JAN 2009
  2. Article first published online: 29 DEC 2008
  3. Accepted 2008 October 31. Received 2008 October 29; in original form 2008 September 10

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Keywords:

  • techniques: photometric;
  • techniques: radial velocities;
  • stars: individual: GSC 01482−00882

ABSTRACT

We report the discovery of a 7.3 MJ 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 MJ and a radius of 1.28 ± 0.08 RJ. 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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