HATS-31B THROUGH HATS-35B: FIVE TRANSITING HOT JUPITERS DISCOVERED by the HATSOUTH SURVEY

M. De Val-Borro, G. Bakos, R. Brahm, J. D. Hartman, N. Espinoza, K. Penev, S. Ciceri, A. Jordán, W. Bhatti, Z. Csubry, D. Bayliss, J. Bento, G. Zhou, M. Rabus, L. Mancini, T. Henning, B. Schmidt, T. G. Tan, C. G. Tinney, D. J. WrightL. Kedziora-Chudczer, J. Bailey, V. Suc, S. Durkan, J. Lázár, I. Papp, P. Sári

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8 Scopus citations

Abstract

We report the discovery of five new transiting hot-Jupiter planets discovered by the HATSouth survey, HATS-31b through HATS-35b. These planets orbit moderately bright stars with V magnitudes within the range of - mag while the planets span a range of masses of 0.881.22 MJand have somewhat inflated radii between and . These planets can be classified as typical hot Jupiters, with HATS-31b and HATS-35b being moderately inflated gas giant planets with radii of and 1.64 ±0.22 RJ-1.464+0.069 -0.44, respectively, that can be used to constrain inflation mechanisms. All five systems present a higher Bayesian evidence for a fixed-circular-orbit model than for an eccentric orbit. The orbital periods range from 1.8209993 ±0.0000016 day for HATS-35b) to 3.377960 ± 0.000012 day for HATS-31b. Additionally, HATS-35b orbits a relatively young F star with an age of 2.13 ±0.51Gyr. We discuss the analysis to derive the properties of these systems and compare them in the context of the sample of well-characterized transiting hot Jupiters known to date.

Original languageEnglish (US)
Article number161
JournalAstronomical Journal
Volume152
Issue number6
DOIs
StatePublished - Dec 2016

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Keywords

  • planetary systems
  • stars: individual
  • techniques: photometric
  • techniques: spectroscopic

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