HATS-31b Through HATS-35b: Five Transiting Hot Jupiters Discovered by the HATSouth Survey

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 11.9-14.4mag while the planets span a range of masses 0.88-1.22MJ, and have somewhat inflated radii between 1.23-1.64RJ.These planets can be classified as typical hot Jupiters, with HATS-31b and HATS-35b being moderately inflated gas giant planets with radii of $1.64\pm 0.22$ RJ and 1.464+0.069-0.044RJ, 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 $1.8209993\pm 0.0000016$ day for HATS-35b) to $3.377960\pm 0.000012$ day for HATS-31b. Additionally, HATS-35b orbits a relatively young F star with an age of $2.13\pm 0.51$ Gyr. 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.

arXiv commentsubmitted to ApJ

References in corpus (26)

• Evolutionary tracks and isochrones for low- and intermediate-mass stars: from 0.15 to 7 M_sun, and from Z=0.0004 to 0.03
• Analytic Lightcurves for Planetary Transit Searches
• The WASP Project and the SuperWASP Cameras
• Las Cumbres Observatory Global Telescope Network
• Planetary Radii across Five Orders of Magnitude in Mass and Stellar Insolation: Application to Transits
• A box-fitting algorithm in the search for periodic transits
• Towards Better Age Estimates for Stellar Populations: The Y^2 Isochrones for Solar Mixture
• Wide-field millimagnitude photometry with HAT: A Tool for Extra-solar Planet Detection
• HAT-P-11b: A Super-Neptune Planet Transiting a Bright K Star in the Kepler Field
• Improving Stellar and Planetary Parameters of Transiting Planet Systems: The Case of TrES-2
• KELT-1b: A Strongly Irradiated, Highly Inflated, Short Period, 27 Jupiter-mass Companion Transiting a mid-F Star
• A Trend Filtering Algorithm for wide field variability surveys
• HATSouth: a global network of fully automated identical wide-field telescopes
• Transiting exoplanets from the CoRoT space mission I - CoRoT-Exo-1b: a low-density short-period planet around a G0V star
• HAT-P-7b: An Extremely Hot Massive Planet Transiting a Bright Star in the Kepler Field
• Two Classes of Hot Jupiters
• HATS-6b: A Warm Saturn Transiting an Early M Dwarf Star, and a Set of Empirical Relations for Characterizing K and M Dwarf Planet Hosts
• HAT-P-39b--HAT-P-41b: Three Highly Inflated Transiting Hot Jupiters
• HATS-1b: The First Transiting Planet Discovered by the HATSouth Survey
• HATS-4b: A Dense Hot-Jupiter Transiting a Super Metal-Rich G Star
• HATS-3b: An inflated hot Jupiter transiting an F-type star
• A Nearly Polar Orbit for the Extrasolar Hot Jupiter WASP-79b
• Secondary eclipse observations for seven hot-Jupiters from the Anglo-Australian Telescope
• HATS-9b and HATS-10b: Two Compact Hot Jupiters in Field 7 of the K2 Mission
• CYCLOPS2: the fibre image slicer upgrade for the UCLES high resolution spectrograph
• HATS-13b and HATS-14b: two transiting hot Jupiters from the HATSouth survey

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• HATS-22b, HATS-23b and HATS-24b: Three new transiting Super-Jupiters from the HATSouth Project
• Background-Limited Imaging in the Near-Infrared with Warm InGaAs Sensors: Applications for Time-Domain Astronomy
• Measuring Tidal Dissipation in Giant Planets from Tidal Circularization
• AutoRegressive Planet Search: Feasibility Study for Irregular Time Series
• HATS-34b and HATS-46b: Re-characterisation Using TESS and Gaia
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