a transiting compact warm Jupiter in a 16.3 day circular orbit

R. Brahm, A. Jordán, G. Á. Bakos, K. Penev, N. Espinoza, M. Rabus, J. D. Hartman, D. Bayliss, S. Ciceri, G. Zhou, L. Mancini, T. G. Tan, M. de Val-Borro, W. Bhatti, Z. Csubry, J. Bento, T. Henning, B. Schmidt, F. Rojas, V. Suc & 3 others J. Lázár, I. Papp, P. Sári

Research output: Contribution to journalArticle

22 Citations (Scopus)


We report the discovery of HATS-17b, the first transiting warm Jupiter of the HATSouth network. HATS-17b transits its bright (V = 12.4) G-type (M∗ = 1.131 ± 0.030 M, R∗ = 1.091-0.046 +0.070 R) metal-rich ([Fe/H] = +0.3 dex) host star in a circular orbit with a period of P = days. HATS-17b has a very compact radius of 0.777 ± 0.056 RJ given its Jupiter-like mass of 1.338 ± 0.065MJ. Up to 50% of the mass of HATS-17b may be composed of heavy elements in order to explain its high density with current models of planetary structure. HATS-17b is the longest period transiting planet discovered to date by a ground-based photometric survey, and is one of the brightest transiting warm Jupiter systems known. The brightness of HATS-17 will allow detailed follow-up observations to characterize the orbital geometry of the system and the atmosphere of the planet.

Original languageEnglish
Article number89
Number of pages11
JournalAstronomical Journal
Issue number4
Publication statusPublished - Apr 2016
Externally publishedYes


  • planetary systems
  • stars: individual (HATS-17)
  • techniques: photometric
  • techniques: spectroscopic

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