HATS-5b: A transiting hot saturn from the HATsouth survey

  • G. Zhou
  • , D. Bayliss
  • , K. Penev
  • , G. Á Bakos
  • , J. D. Hartman
  • , A. Jordán
  • , L. Mancini
  • , M. Mohler
  • , Z. Csubry
  • , S. Ciceri
  • , R. Brahm
  • , M. Rabus
  • , L. Buchhave
  • , T. Henning
  • , V. Suc
  • , N. Espinoza
  • , B. Béky
  • , R. W. Noyes
  • , B. Schmidt
  • , R. P. Butler
  • S. Shectman, I. Thompson, J. Crane, B. Sato, B. Csák, J. Lázár, I. Papp, P. Sári, N. Nikolov

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

We report the discovery of HATS-5b, a transiting hot Saturn orbiting a G-type star, by the HATSouth survey. HATS-5b has a mass of Mp 0.24 MJ, radius of Rp 0.91 R J, and transits its host star with a period of P 4.7634 days. The radius of HATS-5b is consistent with both theoretical and empirical models. The host star has a V-band magnitude of 12.6, mass of 0.94 M , and radius of 0.87 R. The relatively high scale height of HATS-5b and the bright, photometrically quiet host star make this planet a favorable target for future transmission spectroscopy follow-up observations. We reexamine the correlations in radius, equilibrium temperature, and metallicity of the close-in gas giants and find hot Jupiter-mass planets to exhibit the strongest dependence between radius and equilibrium temperature. We find no significant dependence in radius and metallicity for the close-in gas giant population.

Original languageEnglish
Article number144
JournalAstronomical Journal
Volume147
Issue number6
DOIs
StatePublished - Jun 2014
Externally publishedYes

Keywords

  • stars: individual (HATS-5, GSC 5897-00933)
  • techniques: photometric
  • techniques: spectroscopic

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