HATS-59b,c: A Transiting Hot Jupiter and a Cold Massive Giant Planet Around a Sun-Like Star

Abstract

We report the first discovery of a multi-planetary system by the HATSouth network, HATS-59b,c, a planetary system with an inner transiting hot Jupiter and an outer cold massive giant planet, which was detected via radial velocity. The inner transiting planet, HATS-59b, is on an eccentric orbit with $e=0.129\pm 0.049$, orbiting a $V=13.951\pm 0.030$ mag solar-like star ($M_{\ast }=1.038\pm 0.039M_{\odot }$, and $R_{\ast }=1.036\pm 0.067R_{\odot }$) with a period of $5.416077\pm 0.000017$ days. The outer companion, HATS-59c is on a circular orbit with $m\sin i=12.8\pm 1.1M_{\mathrm{J}}$, and a period of $1422\pm 14$ days. The inner planet has a mass of $0.806\pm 0.069M_{\mathrm{J}}$ and a radius of $1.126\pm 0.077M_{\mathrm{J}}$, yielding a density of $0.70\pm 0.16\mathrm{g}\mathrm{c}{\mathrm{m}}^{-3}$. Unlike most of the planetary systems that include only a single hot Jupiter, HATS-59b,c includes, in addition to the transiting hot Jupiter, a massive outer companion. The architecture of this system is valuable for understanding planet migration.

arXiv comment12 pages, 9 figures, submitted to AJ. For a short discussion, see https://sites.google.com/view/paulasarkis/research/hats-59

References in corpus (59)

• Analytic Lightcurves for Planetary Transit Searches
• Las Cumbres Observatory Global Telescope Network
• Planet Occurrence within 0.25 AU of Solar-type Stars from Kepler
• 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
• The Occurrence and Architecture of Exoplanetary Systems
• Towards Better Age Estimates for Stellar Populations: The Y^2 Isochrones for Solar Mixture
• DHP Framework: Digital Health Passports Using Blockchain -- Use case on international tourism during the COVID-19 pandemic
• On detecting terrestrial planets with timing of giant planet transits
• Formation of Hot Planets by a combination of planet scattering, tidal circularization, and Kozai mechanism
• Improving the Efficiency of Markov Chain Monte Carlo for Analyzing the Orbits of Extrasolar Planets
• The Mass-Metallicity Relation for Giant Planets
• HAT-P-11b: A Super-Neptune Planet Transiting a Bright K Star in the Kepler Field
• GROND - a 7-channel imager
• The imprint of exoplanet formation history on observable present-day spectra of hot Jupiters
• HAT-P-16b: A 4 Mj Planet Transiting A Bright Star On An Eccentric Orbit
• Friends of Hot Jupiters I: A Radial Velocity Search for Massive, Long-Period Companions to Close-In Gas Giant Planets
• Improving Stellar and Planetary Parameters of Transiting Planet Systems: The Case of TrES-2
• The Wide Field Spectrograph (WiFeS)
• A Trend Filtering Algorithm for wide field variability surveys
• WASP-47: A Hot Jupiter System with Two Additional Planets Discovered by K2
• Compositional imprints in density-distance-time: a rocky composition for close-in low-mass exoplanets from the location of the valley of evaporation
• CERES: A Set of Automated Routines for Echelle Spectra
• HATSouth: a global network of fully automated identical wide-field telescopes
• HAT-P-7b: An Extremely Hot Massive Planet Transiting a Bright Star in the Kepler Field
• Eccentricity growth and orbit flip in coplanar hierarchical three body systems
• Hot Jupiters from Coplanar High-eccentricity Migration
• Seven transiting hot-Jupiters from WASP-South, Euler and TRAPPIST: WASP-47b, WASP-55b, WASP-61b, WASP-62b, WASP-63b, WASP-66b & WASP-67b
• Evidence of an Upper Bound on the Masses of Planets and its Implications for Giant Planet Formation
• Friends of Hot Jupiters II: No Correspondence Between Hot-Jupiter Spin-Orbit Misalignment and the Incidence of Directly Imaged Stellar Companions
• Two Classes of Hot Jupiters
• Tidal Interactions and Disruptions of Giant Planets on Highly Eccentric Orbits
• 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-13b,c: a transiting hot Jupiter with a massive outer companion on an eccentric orbit
• HAT-P-39b--HAT-P-41b: Three Highly Inflated Transiting Hot Jupiters
• Instrumentation for the detection and characterization of exoplanets
• Determination of the Interior Structure of Transiting Planets in Multiple-Planet Systems
• HATS-1b: The First Transiting Planet Discovered by the HATSouth Survey
• HATS-4b: A Dense Hot-Jupiter Transiting a Super Metal-Rich G Star
• ZASPE: A Code to Measure Stellar Atmospheric Parameters and their Covariance from Spectra
• Hot Jupiters with relatives: discovery of additional planets in orbit around WASP-41 and WASP-47
• A cool starspot or a second transiting planet in the TrES-1 system?
• The Mass-Radius Relationship for Very Low Mass Stars: Four New Discoveries from the HATSouth Survey
• HATS-3b: An inflated hot Jupiter transiting an F-type star
• Deuterium burning in objects forming via the core accretion scenario - Brown dwarfs or planets?
• HAT-P-28b and HAT-P-29b: Two Sub-Jupiter Mass Transiting Planets
• HATS-2b: A transiting extrasolar planet orbiting a K-type star showing starspot activity
• Dynamical Constraints on the Core Mass of Hot Jupiter HAT-P-13b
• Stellar Spin-Orbit Alignment for Kepler-9, a Multi-transiting Planetary system with Two Outer Planets Near 2:1 Resonance
• Transit Probabilities for Stars With Stellar Inclination Constraints
• HATS-5b: A Transiting hot-Saturn from the HATSouth Survey
• Kepler-424 b: A "Lonely" Hot Jupiter That Found A Companion
• Binaries among low-mass stars in nearby young moving groups
• HATS-25b through HATS-30b: A Half-dozen New Inflated Transiting Hot Jupiters from the HATSouth Survey
• Peculiar architectures for the WASP-53 and WASP-81 planet-hosting systems
• K2-114b and K2-115b: Two Transiting Warm Jupiters
• Kepler-539: a young extrasolar system with two giant planets on wide orbits and in gravitational interaction
• SOPHIE velocimetry of Kepler transit candidates XVIII. Radial velocity confirmation, absolute masses and radii, and origin of the Kepler-419 multiplanetary system
• The Atmosphere and Interior Structure of HAT-P-13b from Spitzer Secondary Eclipses

Cited by in corpus (5)

• TESS Transit Timing of Hundreds of Hot Jupiters
• HATS-60b - HATS-69b: Ten Transiting Planets From HATSouth
• WASP-4 is Accelerating Toward the Earth
• HATS-54b-HATS-58Ab: five new transiting hot Jupiters including one with a possible temperate companion
• XO-7 b: A transiting hot Jupiter with a massive companion on a wide orbit