HD 80606 b, a planet on an extremely elongated orbit

Abstract

We report the detection of a planetary companion orbiting the solar-type star HD 80606, the brighter component of a wide binary with a projected separation of about 2000 AU. Using high-signal spectroscopic observations of the two components of the visual binary, we show that they are nearly identical. The planet has an orbital period of 111.8 days and a minimum mass of 3.9 M_Jup. With e=0.927, this planet has the highest orbital eccentricity among the extrasolar planets detected so far. We finally list several processes this extreme eccentricity could result from.

4 pages, 1 figure included, submitted to A&A, final version

Cited by in corpus (150)

• Catalog of Nearby Exoplanets
• The Keck Planet Search: Detectability and the Minimum Mass and Orbital Period Distribution of Extrasolar Planets
• The Occurrence and Architecture of Exoplanetary Systems
• Planet Migration and Binary Companions: the case of HD 80606b
• Origins of Hot Jupiters
• Dynamical Origin of Extrasolar Planet Eccentricity Distribution
• Homogeneous studies of transiting extrasolar planets. IV. Thirty systems with space-based light curves
• Origins of Eccentric Extrasolar Planets: Testing the Planet-Planet Scattering Model
• Quantifying the Uncertainty in the Orbits of Extrasolar Planets
• Spin-orbit angle measurements for six southern transiting planets; New insights into the dynamical origins of hot Jupiters
• The Mass-Metallicity Relation for Giant Planets
• Secular Chaos and the Production of Hot Jupiters
• HAT-P-16b: A 4 Mj Planet Transiting A Bright Star On An Eccentric Orbit
• Is tidal heating sufficient to explain bloated exoplanets? Consistent calculations accounting for finite initial eccentricity
• The Mass of KOI-94d and a Relation for Planet Radius, Mass, and Incident Flux
• Eccentricity from transit photometry: small planets in Kepler multi-planet systems have low eccentricities
• Predictions of the WFIRST Microlensing Survey I: Bound Planet Detection Rates
• Detectability of Extrasolar Planets in Radial Velocity Surveys
• Two Suns in The Sky: Stellar Multiplicity in Exoplanet Systems
• Statistical properties of exoplanets III. Planet properties and stellar multiplicity
• Planetary System Disruption by Galactic Perturbations to Wide Binary Stars
• Stellar obliquities in exoplanetary systems
• Steady-state planet migration by the Kozai-Lidov mechanism in stellar binaries
• Extrasolar planets in stellar multiple systems
• Evidence of an Upper Bound on the Masses of Planets and its Implications for Giant Planet Formation
• HAT-P-20b--HAT-P-23b: Four Massive Transiting Extrasolar Planets
• Tidal Venuses: Triggering a Climate Catastrophe via Tidal Heating
• The Photoeccentric Effect and Proto-Hot Jupiters I. Measuring photometric eccentricities of individual transiting planets
• Effects of Orbital Eccentricity on Extrasolar Planet Transit Detection and Lightcurves
• A Model for Thermal Phase Variations of Circular and Eccentric Exoplanets
• Photometric and spectroscopic detection of the primary transit of the 111-day-period planet HD 80606 b
• HAT-P-13b,c: a transiting hot Jupiter with a massive outer companion on an eccentric orbit
• Effects of Extreme Obliquity Variations on the Habitability of Exoplanets
• Extrasolar Giant Planets and X-ray Activity
• Tidal evolution of hierarchical and inclined systems
• The NASA-UC Eta-Earth Program: I. A Super-Earth Orbiting HD 7924
• Observational Evidence for Tidal Interaction in Close Binary Systems
• Stellar companions to exoplanet host stars: Lucky Imaging of transiting planet hosts
• Calibration of Equilibrium Tide Theory for Extrasolar Planet Systems II
• Generalized Milankovitch Cycles and Longterm Climatic Habitability
• Giant Planet Migration through the Action of Disk Torques and Planet Scattering
• Observation of the full 12-hour-long transit of the exoplanet HD80606b. Warm-Spitzer photometry and SOPHIE spectroscopy
• Mass constraints on substellar companion candidates from the re-reduced Hipparcos intermediate astrometric data: Nine confirmed planets and two confirmed brown dwarfs
• High eccentricity planets from the Anglo-Australian Planet Search
• Three-dimensional atmospheric circulation of hot Jupiters on highly eccentric orbits
• The CORALIE survey for southern extrasolar planets V: 3 new extrasolar planets
• A Search for Multi-Planet Systems Using the Hobby-Eberly Telescope
• A Transiting Hot Jupiter Orbiting a Metal-Rich Star
• What asteroseismology can do for exoplanets: Kepler-410A b is a Small Neptune around a bright star, in an eccentric orbit consistent with low obliquity
• Impact of Orbital Eccentricity on the Detection of Transiting Extrasolar Planets
• The CORALIE survey for southern extra-solar planets XV. Discovery of two eccentric planets orbiting HD4113 and HD156846
• On the Nature of Stars with Planets
• Spin-orbit misalignment in the HD80606 planetary system
• Constraining Orbital Parameters Through Planetary Transit Monitoring
• The Transit Ingress and the Tilted Orbit of the Extraordinarily Eccentric Exoplanet HD 80606b
• An Exomoon Survey of 70 Cool Giant Exoplanets and the New Candidate Kepler-1708 b-i
• Detection of a transit by the planetary companion of HD 80606
• Possible Commensurabilities Among Pairs of Extrasolar Planets
• SOPHIE velocimetry of Kepler transit candidates XII. KOI-1257 b: a highly eccentric three-month period transiting exoplanet
• Orbital Orientations of Exoplanets: HAT-P-4b is Prograde and HAT-P-14b is Retrograde
• Hydrodynamic Simulations of Unevenly Irradiated Jovian Planets
• Are Debris Disks and Massive Planets Correlated?
• Formation and Evolution of Planetary Systems in Presence of Highly Inclined Stellar Perturbers
• Refined stellar, orbital and planetary parameters of the eccentric HAT-P-2 planetary system
• Transit timing variations in eccentric hierarchical triple exoplanetary systems. I. Perturbations on the time-scale of the orbital period of the perturber
• Dynamical Interactions Make Hot Jupiters in Open Star Clusters
• New developments for modern celestial mechanics. I. General coplanar three-body systems. Application to exoplanets
• Statistical properties of exoplanets IV. The period--eccentricity relations of exoplanets and of binary stars
• The ELODIE survey for northern extra--solar planets I. 6 new extra--solar planet candidates
• Astrometric Methods and Instrumentation to Identify and Characterize Extrasolar Planets: A Review
• Evidence for Hidden Nearby Companions to Hot Jupiters
• On the Double Planet System Around HD 83443
• HATS-17b: A Transiting Compact Warm Jupiter in a 16.3 Days Circular Orbit
• A Planet Candidate in the Stellar Triple System HD178911
• The multiplicity of exoplanet host stars - Spectroscopic confirmation of the companions GJ3021B and HD27442B, one new planet host triple-star system, and global statistics
• Transiting exoplanets from the CoRoT space mission IX. CoRoT-6b: a transiting `hot Jupiter' planet in an 8.9d orbit around a low-metallicity star
• A Posteriori Transit Probabilities
• Solar System Physics for Exoplanet Research
• Photometric Detection of a Transit of HD 80606b
• Precise Estimates of the Physical Parameters for the Exoplanet System HD-17156 Enabled by HST FGS Transit and Asteroseismic Observations
• WASP-38b: A Transiting Exoplanet in an Eccentric, 6.87d Period Orbit
• WASP-37b: a 1.8 MJ exoplanet transiting a metal-poor star
• The Photoeccentric Effect and Proto-Hot Jupiters II. KOI-1474.01, a candidate eccentric planet perturbed by an unseen companion
• The HARPS search for southern extrasolar planets. XXIII. 8 planetary companions to low-activity solar-type stars
• Galactic orbits of stars with planets
• Orbital Dynamics of Multi-Planet Systems with Eccentricity Diversity
• Radio Observations of HD 80606 Near Planetary Periastron
• Probing potassium in the atmosphere of HD 80606b with tunable filter transit spectrophotometry from the Gran Telescopio Canarias
• A High Eccentricity Component in the Double Planet System Around HD 163607 and a Planet Around HD 164509
• Zodiacal Exoplanets in Time (ZEIT) VII: A Temperate Candidate Super-Earth in the Hyades Cluster
• Choosing a Maximum Drift Rate in a SETI Search: Astrophysical Considerations
• MOST Space Telescope Photometry of the 2010 January Transit of Extrasolar Planet HD80606b
• The Pan-Pacific Planet Search VII: The most eccentric planet orbiting a giant star
• Colour-magnitude diagrams of transiting Exoplanets - II. A larger sample from photometric distances
• Detailed chemical compositions of the wide binary HD 80606/80607: revised stellar properties and constraints on planet formation
• Dynamical and Observational Constraints on Additional Planets in Highly Eccentric Planetary Systems
• Limits on the Orbits and Masses of Moons around Currently-Known Transiting Exoplanets
• Self-Consistent Spin, Tidal and Dynamical Equations of Motion in the REBOUNDx Framework
• HD 80606: Searching the chemical signature of planet formation
• An ingress and a complete transit of HD 80606 b
• Transits of Known Planets Orbiting a Naked-Eye Star
• Estimating the masses of extra-solar planets
• Direct Measure of Radiative and Dynamical Properties of an Exoplanet Atmosphere
• Habitability and Water Loss Limits on Eccentric Planets Orbiting Main Sequence Stars
• Ground-based multisite observations of two transits of HD 80606b
• Evidence for Reflected Light from the Most Eccentric Exoplanet Known
• Orbital effects of non-isotropic mass depletion of the atmospheres of evaporating hot Jupiters in extrasolar systems
• The Aligned Orbit of the Eccentric Proto Hot Jupiter TOI-3362b
• Revised Exoplanet Radii and Habitability Using Gaia Data Release 2
• Detectability of Exoplanet Periastron Passage in the Infra-Red
• A Massive Planet to the Young Disc Star HD 81040
• The obliquity of HIP 67522 b: a 17 Myr old transiting hot Jupiter-sized planet
• Robust Transiting Exoplanet Radii in the Presence of Starspots from Ingress and Egress Durations
• On the Fate of Close-in Extrasolar Planets
• A search for planets in the metal-enriched binary HD 219542
• Detecting the General Relativistic Orbital Precession of the Exoplanet HD 80606b
• Keplerian periodogram for Doppler exoplanets detection: optimized computation and analytic significance thresholds
• Orbital alignment of the eccentric warm Jupiter TOI-677 b
• XO-2b: a Prograde Planet with a Negligible Eccentricity, and an Additional Radial Velocity Variation
• Detailed Abundances of Planet-Hosting Wide Binaries. II. HD80606 + HD80607
• TOI-1670 b and c: An Inner Sub-Neptune with an Outer Warm Jupiter Unlikely to have Originated from High-Eccentricity Migration
• Giant Outer Transiting Exoplanet Mass (GOT 'EM) Survey. I. Confirmation of an Eccentric, Cool Jupiter With an Interior Earth-sized Planet Orbiting Kepler-1514
• Giant Outer Transiting Exoplanet Mass (GOT 'EM) Survey. II. Discovery of a Failed Hot Jupiter on a 2.7 Year, Highly Eccentric Orbit
• Using HARPS-N to characterise the long-period planets in the PH-2 and Kepler-103 systems
• Utilizing a global network of telescopes to update the ephemeris for the highly eccentric planet HD 80606 b and to ensure the efficient scheduling of JWST
• Precision of a Low-Cost InGaAs Detector for Near Infrared Photometry
• A High-Eccentricity Warm Jupiter Orbiting TOI-4127
• The GALAH Survey: Using Galactic Archaeology to Refine our Knowledge of TESS Target Stars
• Two Jupiter-Mass Planets Orbiting HD 154672 and HD 205739
• A third star in the HAT-P-7 system, and a new dynamical pathway to misaligned hot Jupiters
• Observable Predictions from Perturber-coupled High-eccentricity Tidal Migration of Warm Jupiters
• Accurate Atmospheric Parameters at Moderate Resolution Using Spectral Indices: Preliminary Application to the MARVELS Survey
• On the Fundamental Mass-Period Functions of Extrasolar Planets
• Directly Imaging Tidally Powered Migrating Jupiters
• Seasonal Changes in the Atmosphere of HD 80606b Observed with JWST's NIRSpec/G395H
• Characterization of seven transiting systems including four warm Jupiters from SOPHIE and TESS
• The Telltale Heartbeat: Detection and Characterization of Eccentric Orbiting Planets via Tides on their Host Star
• Doppler confirmation of TESS planet candidate TOI1408.01: grazing transit and likely eccentric orbit
• BEER analysis of Kepler and CoRoT light curves. V. eBEER: Extension of the Algorithm to Eccentric Binaries
• Discovery of a cold giant planet and mass measurement of a hot super-Earth in the multi-planetary system WASP-132
• Outbursts on normal stars. FH Leo misclassified as a novalike variable
• Revised Properties and Dynamical History for the HD 17156 System
• TESS discovery of a super-Earth and two sub-Neptunes orbiting the bright, nearby, Sun-like star HD 22946
• A One-Dimensional Energy Balance Model Parameterization for the Formation of CO2 Ice on the Surfaces of Eccentric Extrasolar Planets
• Planetary architectures under the influence of a stellar binary
• A tidally detached super Neptune on a strongly misaligned retrograde orbit
• TOI-3362b: A Proto-Hot Jupiter Undergoing High-Eccentricity Tidal Migration
• Examining the detectability of ringing on highly eccentric exoplanets
• Red giant asteroseismic binaries in the Kepler field
• A Homogeneous Catalog of Rossiter-McLaughlin Systems: Distinct $e$-$\lambda$ Trends in Three Gas-Giant Mass Regimes