HATS-74Ab, HATS-75b, HATS-76b and HATS-77b: Four Transiting Giant Planets around K and M Dwarfs
arXiv:2112.01928 · doi:10.3847/1538-3881/ac4a77
Abstract
The relative rarity of giant planets around low mass stars compared with solar-type stars is a key prediction from core accretion planet formation theory. In this paper we report on the discovery of four gas giant planets that transit low mass late K and early M dwarfs. The planets HATS-74Ab (TOI 737b), HATS-75b (TOI 552b), HATS-76b (TOI 555b), and HATS-77b (TOI 730b), were all discovered from the HATSouth photometric survey and followed-up using TESS and other photometric facilities. We use the new ESPRESSO facility at the VLT to confirm and systems and measure their masses. We find that that planets have masses of 1.46 +- 0.14 MJ , 0.491 +- 0.039 MJ , 2.629 +- 0.089 MJ and 1.374 +0.100-0.074 MJ , respectively, and radii of 1.032 +- 0.021 RJ , 0.884 +- 0.013 RJ , 1.079 +- 0.031 RJ , and 1.165 +- 0.021 RJ, respectively. The planets all orbit close to their host stars with orbital periods ranging from 1.7319 d to 3.0876 d. With further work we aim to test core accretion theory by using these and further discoveries to quantify the occurrence rate of giant planets around low mass host stars.
arXiv commentAccepted for publication in the Astronomical Journal
References in corpus (65)
- Astropy: A Community Python Package for Astronomy
- Gaia Data Release 2. Summary of the contents and survey properties
- Modules for Experiments in Stellar Astrophysics (MESA)
- Binary companions of evolved stars in APOGEE DR14: Search method and catalog of ~5,000 companions
- Modules for Experiments in Stellar Astrophysics (MESA): Giant Planets, Oscillations, Rotation, and Massive Stars
- Modules for Experiments in Stellar Astrophysics (MESA): Binaries, Pulsations, and Explosions
- MESA Isochrones and Stellar Tracks (MIST). I: Solar-Scaled Models
- Analytic Lightcurves for Planetary Transit Searches
- MESA Isochrones and Stellar Tracks (MIST) 0: Methods for the construction of stellar isochrones
- The generalised Lomb-Scargle periodogram. A new formalism for the floating-mean and Keplerian periodograms
- Las Cumbres Observatory Global Telescope Network
- The Fourth US Naval Observatory CCD Astrograph Catalog (UCAC4)
- Astrometry.net: Blind astrometric calibration of arbitrary astronomical images
- A new generation of PARSEC-COLIBRI stellar isochrones including the TP-AGB phase
- A Method of Correcting Near-Infrared Spectra for Telluric Absorption
- Kepler Presearch Data Conditioning II - A Bayesian Approach to Systematic Error Correction
- The Revised TESS Input Catalog and Candidate Target List
- 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
- Spectroscopic [Fe/H] for 98 extra-solar planet-host stars: Exploring the probability of planet formation
- Kepler-16: A Transiting Circumbinary Planet
- Automated data reduction workflows for astronomy
- AstroImageJ: Image Processing and Photometric Extraction for Ultra-Precise Astronomical Light Curves
- AstroImageJ: Image Processing and Photometric Extraction for Ultra-Precise Astronomical Light Curves (Expanded Edition)
- Giant Planet Occurrence in the Stellar Mass-Metallicity Plane
- Overview of the Kepler Science Processing Pipeline
- ESPRESSO@VLT -- On-sky performance and first results
- Towards a deterministic model of planetary formation. III. Mass distribution of short-period planets around stars of various masses
- Accurate, Empirical Radii and Masses of Planets and their Host Stars with Gaia Parallaxes
- Core-Accretion Model Predicts Few Jovian-Mass Planets Orbiting Red Dwarfs
- HAT-P-11b: A Super-Neptune Planet Transiting a Bright K Star in the Kepler Field
- The Wide Field Spectrograph (WiFeS)
- Understanding The Effects Of Stellar Multiplicity On The Derived Planet Radii From Transit Surveys: Implications for Kepler, K2, and TESS
- A Trend Filtering Algorithm for wide field variability surveys
- On Galactic density modeling in the presence of dust extinction
- The Kepler Follow-Up Observation Program. I. A Catalog of Companions to Kepler Stars from High-Resolution Imaging
- Lack of Inflated Radii for Kepler Giant Planet Candidates Receiving Modest Stellar Irradiation
- CERES: A Set of Automated Routines for Echelle Spectra
- HATSouth: a global network of fully automated identical wide-field telescopes
- Near-infrared Metallicities, Radial Velocities and Spectral Types for 447 Nearby M Dwarfs
- The New Generation Planetary Population Synthesis (NGPPS). IV. Planetary systems around low-mass stars
- Occurrence Rates of Planets orbiting FGK Stars: Combining Kepler DR25, Gaia DR2 and Bayesian Inference
- Characterizing the Cool KOIs II. The M Dwarf KOI-254 and its Hot Jupiter
- The TRENDS High-Contrast Imaging Survey. IV. The Occurrence Rate of Giant Planets around M-Dwarfs
- FITSH -- a software package for image processing
- The CARMENES search for exoplanets around M dwarfs -- Planet occurrence rates from a subsample of 71 stars
- Two Classes of Hot Jupiters
- A giant exoplanet orbiting a very low-mass star challenges planet formation models
- A new method to compute limb-darkening coefficients for stellar atmosphere models with spherical symmetry: the space missions TESS, Kepler, Corot, and MOST
- M Dwarf Metallicities and Giant Planet Occurrence: Ironing Out Uncertainties and Systematics
- Synthesizing Exoplanet Demographics from Radial Velocity and Microlensing Surveys, II: The Frequency of Planets Orbiting M Dwarfs
- Measuring the Recoverability of Close Binaries in Gaia DR2 with the Robo-AO Kepler Survey
- An empirical calibration to estimate cool dwarf fundamental parameters from H-band spectra
- On the functional form of the metallicity-giant planet correlation
- 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
- MuSCAT2: four-color Simultaneous Camera for the 1.52-m Telescopio Carlos Sánchez
- Spiral Arms and a Massive Dust Disk with non-Keplerian Kinematics: Possible Evidence for Gravitational Instability in the Disk of Elias 2-27
- HATS-3b: An inflated hot Jupiter transiting an F-type star
- Speckle Imaging Excludes Low-Mass Companions Orbiting the Exoplanet Host Star TRAPPIST-1
- Non-Linearity Corrections and Statistical Uncertainties Associated with Near-Infrared Arrays
- HATS-9b and HATS-10b: Two Compact Hot Jupiters in Field 7 of the K2 Mission
- HATS-60b - HATS-69b: Ten Transiting Planets From HATSouth
- Pan-Planets: Searching for hot Jupiters around cool dwarfs
Cited by in corpus (21)
- The occurrence rate of giant planets orbiting low-mass stars with TESS
- Occurrence rate of hot Jupiters around early-type M dwarfs based on TESS data
- RV-detected planets around M dwarfs: Challenges for core accretion models
- TOI-5205 b: A Short-period Jovian Planet Transiting a Mid-M Dwarf
- Mid-to-Late M Dwarfs Lack Jupiter Analogs
- TOI-3714 b and TOI-3629 b: Two gas giants transiting M dwarfs confirmed with HPF and NEID
- Searching for Giant Exoplanets around M-dwarf Stars (GEMS) I: Survey Motivation
- TOI-3235 b: a transiting giant planet around an M4 dwarf star
- The mass determination of TOI-519 b: a close-in giant planet transiting a metal-rich mid-M dwarf
- TOI-3984 A b and TOI-5293 A b: two temperate gas giants transiting mid-M dwarfs in wide binary systems
- A massive hot Jupiter orbiting a metal-rich early-M star discovered in the TESS full frame images
- Metallicity Dependence of Giant Planets around M Dwarfs
- Measuring Tidal Dissipation in Giant Planets from Tidal Circularization
- EDEN Survey: Small Transiting Planet Detection Limits and Constraints on the Occurrence Rates for Late M Dwarfs within 15 pc
- TOI-5344 b: A Saturn-like planet orbiting a super-Solar metallicity M0 dwarf
- Tidally-induced migration of TESS gas giants orbiting M dwarfs
- GEMS JWST: Transmission spectroscopy of TOI-5205b reveals significant stellar contamination and a metal-poor atmosphere
- L 363-38 b: a planet newly discovered with ESPRESSO orbiting a nearby M dwarf star
- Three Hot Jupiters transiting K-dwarfs with a significant heavy element mass
- TOI-3757 b: A low density gas giant orbiting a solar-metallicity M dwarf
- ExoEcho: Exoplanet Ephemerides Change Observations. III. A JWST Survey for Transit Timing Variations of 37 Exoplanets