Three Long-period Transiting Giant Planets from TESS

We report the discovery and orbital characterization of three new transiting warm giant planets. These systems were initially identified as presenting single-transit events in the light curves generated from the full-frame images of the Transiting Exoplanet Survey Satellite. Follow-up radial velocity measurements and additional light curves were used to determine the orbital periods and confirm the planetary nature of the candidates. The planets orbit slightly metal-rich late F- and early G-type stars. We find that TOI 4406b has a mass of M P = 0.30 ± 0.04 M J, a radius of R P = 1.00 ± 0.02 R J, and a low-eccentricity orbit (e = 0.15 ± 0.05) with a period of P = 30.08364 ±0.00005 days. TOI 2338b has a mass of M P = 5.98 ± 0.20 M J, a radius of R P = 1.00 ± 0.01 R J, and a highly eccentric orbit (e = 0.676 ± 0.002) with a period of P = 22.65398 ± 0.00002 days. Finally, TOI 2589b has a mass of M P = 3.50 ± 0.10 M J, a radius of R P = 1.08 ± 0.03 R J, and an eccentric orbit (e = 0.522 ± 0.006) with a period of P = 61.6277 ± 0.0002 days. TOI 4406b and TOI 2338b are enriched in metals compared to their host stars, while the structure of TOI 2589b is consistent with having similar metal enrichment to its host star.

[1]  N. Grieves,et al.  An old warm Jupiter orbiting the metal-poor G-dwarf TOI-5542 , 2022, Astronomy & Astrophysics.

[2]  H. Isaacson,et al.  A Tendency Toward Alignment in Single-star Warm-Jupiter Systems , 2022, The Astronomical Journal.

[3]  N. Grieves,et al.  Two long-period transiting exoplanets on eccentric orbits: NGTS-20 b (TOI-5152 b) and TOI-5153 b , 2022, Astronomy & Astrophysics.

[4]  T. Henning,et al.  Interpreting the Atmospheric Composition of Exoplanets: Sensitivity to Planet Formation Assumptions , 2022, The Astrophysical Journal.

[5]  Chelsea X. Huang,et al.  NEID Rossiter–McLaughlin Measurement of TOI-1268b: A Young Warm Saturn Aligned with Its Cool Host Star , 2022, The Astrophysical Journal Letters.

[6]  G. Laughlin,et al.  Origins of Hot Jupiters from the Stellar Obliquity Distribution , 2022, The Astrophysical Journal Letters.

[7]  J. Pepper,et al.  The TESS-Keck Survey. VIII. Confirmation of a Transiting Giant Planet on an Eccentric 261 Day Orbit with the Automated Planet Finder Telescope , 2022, The Astronomical Journal.

[8]  C. Beichman,et al.  Kepler-167e as a Probe of the Formation Histories of Cold Giants with Inner Super-Earths , 2021, The Astrophysical Journal.

[9]  S. Quinn,et al.  The Solar Neighborhood XLVIII: Nine Giant Planets Orbiting Nearby K Dwarfs, and the CHIRON Spectrograph’s Radial Velocity Performance , 2021, The Astronomical Journal.

[10]  Chelsea X. Huang,et al.  TOI-3362b: A Proto Hot Jupiter Undergoing High-eccentricity Tidal Migration , 2021, The Astrophysical Journal Letters.

[11]  R. P. Butler,et al.  A Pair of Warm Giant Planets near the 2:1 Mean Motion Resonance around the K-dwarf Star TOI-2202 , 2021, The Astronomical Journal.

[12]  H. Isaacson,et al.  Giant Outer Transiting Exoplanet Mass (GOT ‘EM) Survey. II. Discovery of a Failed Hot Jupiter on a 2.7 Yr, Highly Eccentric Orbit , 2021, The Astronomical Journal.

[13]  C. Lintott,et al.  Planet Hunters TESS III: two transiting planets around the bright G dwarf HD 152843 , 2021, 2106.04603.

[14]  T. Henning,et al.  The New Generation Planetary Population Synthesis (NGPPS). V. Predetermination of planet types in global core accretion models , 2021, Astronomy & Astrophysics.

[15]  Chelsea X. Huang,et al.  Warm Jupiters in TESS Full-frame Images: A Catalog and Observed Eccentricity Distribution for Year 1 , 2021, The Astrophysical Journal Supplement Series.

[16]  P. Figueira,et al.  A Spectral Survey of WASP-19b with ESPRESSO , 2021, 2103.12858.

[17]  The University of Texas at Austin,et al.  A Transiting Warm Giant Planet around the Young Active Star TOI-201 , 2021, The Astronomical Journal.

[18]  Chelsea X. Huang,et al.  Precise Transit and Radial-velocity Characterization of a Resonant Pair: The Warm Jupiter TOI-216c and Eccentric Warm Neptune TOI-216b , 2021, The Astronomical Journal.

[19]  R. Dawson,et al.  Observable Predictions from Perturber-coupled High-eccentricity Tidal Migration of Warm Jupiters , 2021, The Astronomical Journal.

[20]  J. Tayar,et al.  A Guide to Realistic Uncertainties on the Fundamental Properties of Solar-type Exoplanet Host Stars , 2020, The Astrophysical Journal.

[21]  J. Eastman,et al.  Giant Outer Transiting Exoplanet Mass (GOT ‘EM) Survey. I. Confirmation of an Eccentric, Cool Jupiter with an Interior Earth-sized Planet Orbiting Kepler-1514 , 2020, The Astronomical Journal.

[22]  Joseph E. Rodriguez,et al.  A Highly Eccentric Warm Jupiter Orbiting TIC 237913194 , 2020, The Astronomical Journal.

[23]  W. Benz,et al.  AQUA: a collection of H2O equations of state for planetary models , 2020, 2009.10098.

[24]  Chelsea X. Huang,et al.  TOI-481 b and TOI-892 b: Two Long-period Hot Jupiters from the Transiting Exoplanet Survey Satellite , 2020, The Astronomical Journal.

[25]  T. Henning,et al.  Evidence of three mechanisms explaining the radius anomaly of hot Jupiters , 2020, Astronomy & Astrophysics.

[26]  David J Armstrong,et al.  NGTS-11 b (TOI-1847 b): A Transiting Warm Saturn Recovered from a TESS Single-transit Event , 2020, The Astrophysical Journal.

[27]  M. Barbieri,et al.  TOI-677b: A Warm Jupiter (P = 11.2 days) on an Eccentric Orbit Transiting a Late F-type Star , 2019, The Astronomical Journal.

[28]  N. Law,et al.  SOAR TESS Survey. I. Sculpting of TESS Planetary Systems by Stellar Companions , 2019, The Astronomical Journal.

[29]  D. Lai,et al.  In situ scattering of warm Jupiters and implications for dynamical histories , 2019, Monthly Notices of the Royal Astronomical Society.

[30]  J. Speagle.  dynesty: a dynamic nested sampling package for estimating Bayesian posteriors and evidences , 2019, Monthly Notices of the Royal Astronomical Society.

[31]  R. Brahm,et al.  juliet: a versatile modelling tool for transiting and non-transiting exoplanetary systems , 2018, Monthly Notices of the Royal Astronomical Society.

[32]  G. Laughlin,et al.  HD 2685 b: a hot Jupiter orbiting an early F-type star detected by TESS , 2018, Astronomy & Astrophysics.

[33]  T. Henning,et al.  HD 1397b: A Transiting Warm Giant Planet Orbiting A V = 7.8 mag Subgiant Star Discovered by TESS , 2018, The Astronomical Journal.

[34]  D. Bayliss,et al.  K2-287 b: An Eccentric Warm Saturn Transiting a G-dwarf , 2018, The Astronomical Journal.

[35]  Miguel de Val-Borro,et al.  HATS-60b–HATS-69b: 10 Transiting Planets from HATSouth , 2018, The Astronomical Journal.

[36]  E. Chiang,et al.  A balanced budget view on forming giant planets by pebble accretion , 2018, Monthly notices of the Royal Astronomical Society.

[37]  Robert T. Zellem,et al.  A Framework for Prioritizing the TESS Planetary Candidates Most Amenable to Atmospheric Characterization , 2018, Publications of the Astronomical Society of the Pacific.

[38]  A. Claret.  A new method to compute limb-darkening coefficients for stellar atmosphere models with spherical symmetry: the space missions TESS, Kepler, CoRoT, and MOST , 2018, Astronomy & Astrophysics.

[39]  et al,et al.  Gaia Data Release 2 , 2018, Astronomy & Astrophysics.

[40]  Jie Li,et al.  Kepler Data Validation I—Architecture, Diagnostic Tests, and Data Products for Vetting Transiting Planet Candidates , 2018, 1803.04526.

[41]  K. Schlaufman,et al.  Evidence of an Upper Bound on the Masses of Planets and Its Implications for Giant Planet Formation , 2018, 1801.06185.

[42]  John Asher Johnson,et al.  Origins of Hot Jupiters , 2018, Annual Review of Astronomy and Astrophysics.

[43]  A. Tokovinin.  Ten Years of Speckle Interferometry at SOAR , 2018, 1801.04772.

[44]  Sarah Blunt,et al.  RadVel: The Radial Velocity Modeling Toolkit , 2018, 1801.01947.

[45]  D. Lai,et al.  Moderately eccentric warm Jupiters from secular interactions with exterior companions , 2017, 1706.00084.

[46]  Abel M'endez,et al.  The Equilibrium Temperature of Planets in Elliptical Orbits , 2017, 1702.07314.

[47]  Jonathan Fortney,et al.  Metal Enrichment Leads to Low Atmospheric C/O Ratios in Transiting Giant Exoplanets , 2016, 1611.08616.

[48]  A. Johansen,et al.  The effects of external planets on inner systems: multiplicities, inclinations and pathways to eccentric warm Jupiters , 2016, 1609.08058.

[49]  Rafael Brahm,et al.  CERES: A Set of Automated Routines for Echelle Spectra , 2016, 1609.02279.

[50]  R. Brahm,et al.  ZASPE: A Code to Measure Stellar Atmospheric Parameters and their Covariance from Spectra , 2016, 1607.05792.

[51]  Peter Tenenbaum,et al.  The TESS science processing operations center , 2016, Astronomical Telescopes + Instrumentation.

[52]  Aaron Dotter,et al.  MESA ISOCHRONES AND STELLAR TRACKS (MIST) 0: METHODS FOR THE CONSTRUCTION OF STELLAR ISOCHRONES , 2016, 1601.05144.

[53]  Keivan G. Stassun,et al.  ASTROIMAGEJ: IMAGE PROCESSING AND PHOTOMETRIC EXTRACTION FOR ULTRA-PRECISE ASTRONOMICAL LIGHT CURVES , 2016, 1601.02622.

[54]  Miguel de Val-Borro,et al.  HATS-17b: A TRANSITING COMPACT WARM JUPITER IN A 16.3 DAY CIRCULAR ORBIT , 2015, 1510.05758.

[55]  Laura Kreidberg,et al.  batman: BAsic Transit Model cAlculatioN in Python , 2015, 1507.08285.

[56]  N. Crouzet,et al.  Thermalizing a telescope in Antarctica – analysis of ASTEP observations , 2015, 1506.06009.

[57]  Dean M. Townsley,et al.  MODULES FOR EXPERIMENTS IN STELLAR ASTROPHYSICS (MESA): BINARIES, PULSATIONS, AND EXPLOSIONS , 2015, 1506.03146.

[58]  A. Santerne,et al.  SOPHIE velocimetry of Kepler transit candidates. XV. KOI-614b, KOI-206b, and KOI-680b: a massive warm Jupiter orbiting a G0 metallic dwarf and two highly inflated planets with a distant companion around evolved F-type stars , 2015, 1501.01486.

[59]  Joshua N. Winn,et al.  The Occurrence and Architecture of Exoplanetary Systems , 2014, 1410.4199.

[60]  B. Liu,et al.  Suppression of extreme orbital evolution in triple systems with short-range forces , 2014, 1409.6717.

[61]  A. Johansen,et al.  Separating gas-giant and ice-giant planets by halting pebble accretion , 2014, 1408.6087.

[62]  B. Gibson,et al.  APASS LANDOLT–SLOAN BVgri PHOTOMETRY OF RAVE STARS. I. DATA, EFFECTIVE TEMPERATURES, AND REDDENINGS , 2014, The Astronomical Journal.

[63]  Marco Bonati,et al.  CHIRON—A Fiber Fed Spectrometer for Precise Radial Velocities , 2013, 1309.3971.

[64]  Prasanth H. Nair,et al.  Astropy: A community Python package for astronomy , 2013, 1307.6212.

[65]  D. Dragomir,et al.  Las Cumbres Observatory Global Telescope Network , 2013, 1305.2437.

[66]  M. H. Montgomery,et al.  MODULES FOR EXPERIMENTS IN STELLAR ASTROPHYSICS (MESA): PLANETS, OSCILLATIONS, ROTATION, AND MASSIVE STARS , 2013, 1301.0319.

[67]  P. Hauschildt,et al.  New limb-darkening coefficients for Phoenix/1d model atmospheres - II. Calculations for 5000 K ≤ Teff ≤ 10 000 K Kepler, CoRot, Spitzer, uvby, UBVRIJHK, Sloan, and 2MASS photometric systems , 2012 .

[68]  L. Girardi,et al.  parsec: stellar tracks and isochrones with the PAdova and TRieste Stellar Evolution Code , 2012, 1208.4498.

[69]  Y. Alibert,et al.  Characterization of exoplanets from their formation - I. Models of combined planet formation and evolution , 2012, 1206.6103.

[70]  Martin C. Stumpe,et al.  Kepler Presearch Data Conditioning II - A Bayesian Approach to Systematic Error Correction , 2012, 1203.1383.

[71]  W. Kley,et al.  Planet-Disk Interaction and Orbital Evolution , 2012, 1203.1184.

[72]  Daniel Foreman-Mackey,et al.  emcee: The MCMC Hammer , 2012, 1202.3665.

[73]  John Southworth,et al.  Homogeneous studies of transiting extrasolar planets – IV. Thirty systems with space-based light curves , 2011, 1107.1235.

[74]  Frank Timmes,et al.  MODULES FOR EXPERIMENTS IN STELLAR ASTROPHYSICS (MESA) , 2010, 1009.1622.

[75]  C. Ormel,et al.  The effect of gas drag on the growth of protoplanets. Analytical expressions for the accretion of small bodies in laminar disks , 2010, 1007.0916.

[76]  T. Guillot.  On the radiative equilibrium of irradiated planetary atmospheres , 2010, 1006.4702.

[77]  D. Kipping.  Morphological Lightcurve Distortions due to Finite Integration Time , 2010, 1004.3741.

[78]  M. Asplund,et al.  The chemical composition of the Sun , 2009, 0909.0948.

[79]  M. Zechmeister,et al.  The generalised Lomb-Scargle periodogram. A new formalism for the floating-mean and Keplerian periodograms , 2009, 0901.2573.

[80]  S. Tremaine,et al.  Submitted to ApJ Preprint typeset using L ATEX style emulateapj v. 10/09/06 SHRINKING BINARY AND PLANETARY ORBITS BY KOZAI CYCLES WITH TIDAL FRICTION , 2022 .

[81]  E. Ford,et al.  Dynamical Outcomes of Planet-Planet Scattering , 2007, astro-ph/0703166.

[82]  Carnegie,et al.  HAT-P-1b: A Large-Radius, Low-Density Exoplanet Transiting One Member of a Stellar Binary , 2006, astro-ph/0609369.

[83]  M. Marley,et al.  Planetary Radii across Five Orders of Magnitude in Mass and Stellar Insolation: Application to Transits , 2006, astro-ph/0612671.

[84]  F. Adams,et al.  Long-Term Evolution of Close Planets Including the Effects of Secular Interactions , 2006, astro-ph/0606349.

[85]  M. Skrutskie,et al.  The Two Micron All Sky Survey (2MASS) , 2006 .

[86]  F. Allard,et al.  Evolutionary models for cool brown dwarfs and extrasolar giant planets. The case of HD 209458 , 2003, astro-ph/0302293.

[87]  G. Kov'acs,et al.  A box-fitting algorithm in the search for periodic transits , 2002, astro-ph/0206099.

[88]  T. Guillot,et al.  A Nongray Theory of Extrasolar Giant Planets and Brown Dwarfs , 1997, astro-ph/9705201.

[89]  Eric B. Ford,et al.  Dynamical Instabilities and the Formation of Extrasolar Planetary Systems , 1996, Science.

[90]  Michel Mayor,et al.  ELODIE: A spectrograph for accurate radial velocity measurements , 1996 .

[91]  M. Mayor,et al.  A Jupiter-mass companion to a solar-type star , 1995, Nature.

[92]  Gilles Chabrier,et al.  An Equation of State for Low-Mass Stars and Giant Planets , 1995 .

[93]  D. Lin,et al.  On the tidal interaction between protoplanets and the protoplanetary disk. III. Orbital migration of protoplanets , 1986 .

[94]  D. Stevenson.  Formation of Giant Planets , 1982 .

[95]  Peter Goldreich,et al.  Disk-Satellite Interactions , 1980 .

[96]  E. Salpeter,et al.  The mass-radius relation for cold spheres of low mass , 1969 .

[97]  Martin C. Stumpe,et al.  Multiscale Systematic Error Correction via Wavelet-Based Bandsplitting in Kepler Data , 2014 .

[98]  Floris van Liere.  Planet Formation , 2009 .

[99]  Steven Soter,et al.  Q in the solar system , 1966 .