Retired A Stars and Their Companions: Eighteen New Jovian Planets

Abstract

We report the detection of eighteen Jovian planets discovered as part of our Doppler survey of subgiant stars at Keck Observatory, with follow-up Doppler and photometric observations made at McDonald and Fairborn Observatories, respectively. The host stars have masses 0.927 < Mstar /Msun < 1.95, radii 2.5 < Rstar/Rsun < 8.7, and metallicities -0.46 < [Fe/H] < +0.30. The planets have minimum masses 0.9 MJup < MP sin i <3 MJup and semima jor axes a > 0.76 AU. These detections represent a 50% increase in the number of planets known to orbit stars more massive than 1.5 Msun and provide valuable additional information about the properties of planets around stars more massive thantheSun.

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References in corpus (15)

• Direct Imaging of Multiple Planets Orbiting the Star HR 8799
• Spectroscopic parameters for 451 stars in the HARPS GTO planet search program. Stellar [Fe/H] and the frequency of exo-Neptunes
• Planet formation around stars of various masses: The snow line and the frequency of giant planets
• Retired A Stars and Their Companions: Exoplanets Orbiting Three Intermediate-Mass Subgiants
• Planets around evolved intermediate-mass stars. I. Two substellar companions in the open clusters NGC 2423 and NGC 4349
• Efficient fitting of multiplanet Keplerian models to radial velocity and astrometry data
• Evolved stars hint to an external origin of enhanced metallicity in planet-hosting stars
• Gas disks to gas giants: Simulating the birth of planetary systems
• An Eccentric Hot Jupiter Orbiting the Subgiant HD 185269
• The Transit Light Curve (TLC) Project. II. Two Transits of the Exoplanet OGLE-TR-111b
• Precise radial velocities of giant stars: I. Stable stars
• Measurement of the Spin-Orbit Angle of Exoplanet HAT-P-1b
• Metallicities of Planet Hosting Stars: A Sample of Giants and Subgiants
• Giant Planet Accretion and Migration: Surviving the Type I Regime
• The Integral Field Spectrograph of SPHERE: the Planet Finder for VLT

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• Characterizing the Cool KOIs II. The M Dwarf KOI-254 and its Hot Jupiter
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• Statistics of Long Period Gas Giant Planets in Known Planetary Systems
• The International Deep Planet Survey I. The frequency of wide-orbit massive planets around A-stars
• Science with a wide-field UV transient explorer
• Stochastic accretion of planetesimals onto white dwarfs: constraints on the mass distribution of accreted material from atmospheric pollution
• Evidence for the Tidal Destruction of Hot Jupiters by Subgiant Stars
• Calibration of Equilibrium Tide Theory for Extrasolar Planet Systems II
• Kepler-20: A Sun-like Star with Three Sub-Neptune Exoplanets and Two Earth-size Candidates
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• The Dynamical Mass and Three-Dimensional Orbit of HR7672B: A Benchmark Brown Dwarf with High Eccentricity
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• The McDonald Observatory Planet Search: New Long-Period Giant Planets, and Two Interacting Jupiters in the HD 155358 System
• Kepler-432: a red giant interacting with one of its two long period giant planets
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• HAT-P-57b: A Short-Period Giant Planet Transiting A Bright Rapidly Rotating A8V Star Confirmed Via Doppler Tomography
• Objects in Kepler's Mirror May be Larger Than They Appear: Bias and Selection Effects in Transiting Planet Surveys
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• The Discovery of HD 37605c and a Dispositive Null Detection of Transits of HD 37605b
• A-type Stars, the Destroyers of Worlds: The lives and deaths of Jupiters in evolving stellar binaries
• The SOPHIE search for northern extrasolar planets. V. Follow-up of ELODIE candidates: Jupiter-analogs around Sun-like stars
• Evolved stars and the origin of abundance trends in planet hosts
• A Second Giant Planet in 3:2 Mean-Motion Resonance in the HD 204313 System
• Substellar Companions to Seven Evolved Intermediate-Mass Stars
• The Mass Distribution of Subgiant Planet Hosts
• Dynamical Masses of Young M Dwarfs: Masses and Orbital Parameters of GJ 3305 AB, the Wide Binary Companion to the Imaged Exoplanet Host 51 Eri
• Astrophysical Insights into Radial Velocity Jitter from an Analysis of 600 Planet-search Stars
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• A low stellar obliquity for WASP-47, a compact multiplanet system with a hot Jupiter and an ultra-short period planet
• Herschel Observations of Debris Discs Orbiting Planet-hosting Subgiants
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• Resonances Required: Dynamical Analysis of the 24 Sex and HD 200964 Planetary Systems
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• Measuring the Galactic Distribution of Transiting Planets with WFIRST
• On the Chemical Abundance of HR 8799 and the Planet c
• A planet in an 840-d orbit around a Kepler main-sequence A star found from phase modulation of its pulsations
• Three red giants with substellar-mass companions
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• SWEET-Cat update and FASMA. A new minimization procedure for stellar parameters using high-quality spectra
• The Pan-Pacific Planet Search VII: The most eccentric planet orbiting a giant star
• KELT-21b: A Hot Jupiter Transiting the Rapidly-Rotating Metal-Poor Late-A Primary of a Likely Hierarchical Triple System
• KELT-25b and KELT-26b: A Hot Jupiter and a Substellar Companion Transiting Young A-stars Observed by TESS
• Stars Don't Eat Their Young Migrating Planets - Empirical Constraints On Planet Migration Halting Mechanisms
• The masses of retired A stars with asteroseismology: Kepler and K2 observations of exoplanet hosts
• Retired A Stars and Their Companions VIII: 15 New Planetary Signals Around Subgiants and Transit Parameters for California Planet Search Planets with Subgiant Hosts
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• Extrasolar planets and brown dwarfs around A--F type stars. VIII. A giant planet orbiting the young star HD113337
• Three Temperate Neptunes Orbiting Nearby Stars
• No difference in orbital parameters of RV-detected giant planets between 0.1 and 5 au in single vs multi-stellar systems
• Revised Exoplanet Radii and Habitability Using Gaia Data Release 2
• Photometric transit search for planets around cool stars from the western Italian Alps: A pilot study
• The APOGEE Spectroscopic Survey of Kepler Planet Hosts: Feasibility, Efficiency, and First Results
• TAPAS IV. TYC 3667-1280-1 b - the most massive red giant star hosting a warm Jupiter
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• An Extreme-AO Search for Giant Planets around a White Dwarf --VLT/SPHERE performance on a faint target GD 50
• Shape of a slowly rotating star measured by asteroseismology
• Tracking Advanced Planetary Systems (TAPAS) with HARPS-N. VI. HD 238914 and TYC 3318-01333-1 - two more Li-rich giants with planets
• The Pan-Pacific Planet Search V. Fundamental Parameters for 164 Evolved Stars
• The TRENDS High-Contrast Imaging Survey. II. Direct Detection of the HD 8375 Tertiary
• SPECIES II. Stellar parameters of the EXPRESS program giant star sample
• Automated approach to measure stellar inclinations: validation through large-scale measurements on the red giant branch
• Unseen companions of V Hya inferred from periodic ejections
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• Consequences of tidal interaction between disks and orbiting protoplanets for the evolution of multi-planet systems with architecture resembling that of Kepler 444
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• The GALAH Survey: Using Galactic Archaeology to Refine our Knowledge of TESS Target Stars
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• A Jupiter-mass planet around the K0 giant HD 208897
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• Direct Spectral Detection: An Efficient Method to Detect and Characterize Binary Systems
• Tracking Advanced Planetary Systems (TAPAS) with HARPS-N. III. HD 5583 and BD+15 2375 - two cool giants with warm companions
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