Discovery and spectroscopy of the young Jovian planet 51 Eri b with the Gemini Planet Imager

Abstract

Directly detecting thermal emission from young extrasolar planets allows measurement of their atmospheric composition and luminosity, which is influenced by their formation mechanism. Using the Gemini Planet Imager, we discovered a planet orbiting the $sim$20 Myr-old star 51 Eridani at a projected separation of 13 astronomical units. Near-infrared observations show a spectrum with strong methane and water vapor absorption. Modeling of the spectra and photometry yields a luminosity of L/LS=1.6-4.0 x 10-6 and an effective temperature of 600-750 K. For this age and luminosity, "hot-start" formation models indicate a mass twice that of Jupiter. This planet also has a sufficiently low luminosity to be consistent with the "cold- start" core accretion process that may have formed Jupiter.

arXiv comment29 pages, 3 figures, 2 tables, and Supplementary Materials. published in Science Express on Aug 13 2015. List of authors and the magnitudes of the star were correted

References in corpus (68)

• Validation of the new Hipparcos reduction
• Direct Imaging of Multiple Planets Orbiting the Star HR 8799
• Shrinking binary and planetary orbits by Kozai cycles with tidal friction
• Angular Differential Imaging: a Powerful High-Contrast Imaging Technique
• A giant planet imaged in the disk of the young star Beta Pictoris
• Rapid growth of gas-giant cores by pebble accretion
• Optical Images of an Exosolar Planet 25 Light Years from Earth
• Detection and Characterization of Exoplanets and Disks using Projections on Karhunen-Loeve Eigenimages
• The Gemini Planet Imager: First Light
• The Evolution of L and T Dwarfs in Color-Magnitude Diagrams
• Models of Giant Planet formation with migration and disc evolution
• Radial Velocities for 889 Late-type Stars
• On the Luminosity of Young Jupiters
• L' and M' Photometry of Ultracool Dwarfs
• A new algorithm for point spread function subtraction in high-contrast imaging: a demonstration with angular differential imaging
• Neglected Clouds in T and Y Dwarf Atmospheres
• L and T Dwarf Models and the L to T Transition
• ESI, a new Keck Observatory echellette spectrograph and imager
• The 0.8-14.5 micron Spectra of Mid-L to Mid-T Dwarfs: Diagnostics of Effective Temperature, Grain Sedimentation, Gas Transport, and Surface Gravity
• Fundamental limitations of high contrast imaging set by small sample statistics
• Spectral and Photometric Diagnostics of Giant Planet Formation Scenarios
• Further Defining Spectral Type "Y" and Exploring the Low-mass End of the Field Brown Dwarf Mass Function
• Clouds and Chemistry: Ultracool Dwarf Atmospheric Properties from Optical and Infrared Colors
• Clouds and Chemistry in the Atmosphere of Extrasolar Planet HR8799b
• On the age of the $\beta$ Pictoris moving group
• PynPoint: An Image Processing Package for Finding Exoplanets
• Pulkovo Compilation of Radial Velocities for 35495 Hipparcos Stars in a Common System
• Atmospheres of protoplanetary cores: critical mass for nucleated instability
• The Runts of the Litter: Why planets formed through gravitational instability can only be failed binary stars
• BANYAN. II. Very Low Mass and Substellar Candidate Members to Nearby, Young Kinematic Groups With Previously Known Signs of Youth
• Masses, Radii, and Cloud Properties of the HR 8799 Planets
• Direct Imaging of a Cold Jovian Exoplanet in Orbit around the Sun-like Star GJ 504
• Improving Galactic Center Astrometry by Reducing the Effects of Geometric Distortion
• Giant Planet Companion to 2MASSW J1207334-393254
• A lithium depletion boundary age of 21 Myr for the Beta Pictoris moving group
• Direct Imaging and Spectroscopy of a Planetary Mass Candidate Companion to a Young Solar Analog
• Methane, Carbon Monoxide, and Ammonia in Brown Dwarfs and Self-Luminous Giant Planets
• The AstraLux Large M-dwarf Multiplicity Survey
• Discovery of a probable 4-5 Jupiter-mass exoplanet to HD 95086 by direct-imaging
• Direct Imaging Discovery of a `Super-Jupiter' Around the late B-Type Star Kappa And
• Ammonia as a tracer of chemical equilibrium in the T7.5 dwarf Gliese 570D
• Orbital characterization of the βPictoris b giant planet
• Model atmospheres for massive gas giants with thick clouds: Application to the HR 8799 planets and predictions for future detections
• HD 106906 b: A planetary-mass companion outside a massive debris disk
• Stability of the directly imaged multiplanet system HR 8799: resonance and masses
• Directly Imaged L-T Transition Exoplanets in the Mid-Infrared
• Discovery of a wide planetary-mass companion to the young M3 star GU Psc
• Seventy six T dwarfs from the UKIDSS LAS: benchmarks, kinematics and an updated space density
• A survey of young, nearby, and dusty stars to understand the formation of wide-orbit giant planets
• Lucky Imaging survey for southern M dwarf binaries
• Reconnaissance of the HR 8799 Exosolar System II: Astrometry and Orbital Motion
• The Moving Group Targets of the SEEDS High-Contrast Imaging Survey of Exoplanets and Disks: Results and Observations from the First Three Years
• Precise Infrared Radial Velocities from Keck/NIRSPEC and the Search for Young Planets
• High resolution imaging of young M-type stars of the solar neighborhood: Probing the existence of companions down to the mass of Jupiter
• Direct Imaging Detection of Methane in the Atmosphere of GJ 504 b
• Gas and dust in the Beta Pictoris Moving Group as seen by the Herschel Space Observatory
• A Sensitive Identification of Warm Debris Disks in the Solar Neighborhood Through Precise Calibration of Saturated WISE Photometry
• The First H-band Spectrum of the Massive Gas Giant Planet beta Pictoris b with the Gemini Planet Imager
• The ultracool-field dwarf luminosity-function and space density from the Canada-France Brown Dwarf Survey
• Gemini Planet Imager Observational Calibrations I: Overview of the GPI Data Reduction Pipeline
• Deep Thermal Infrared Imaging of HR 8799 bcde: New Atmospheric Constraints and Limits on a Fifth Planet
• The Occurrence of Wide-Orbit Planets in Binary Star Systems
• Gemini Planet Imager Observational Calibrations V: Astrometry and Distortion
• GPI PSF subtraction with TLOCI: the next evolution in exoplanet/disk high-contrast imaging
• 51 Eri and GJ 3305: A 10-15 Myr old binary star system at 30 parsecs
• Orbital Monitoring of the AstraLux Large M-dwarf Multiplicity Sample
• Gemini Planet Imager Observational Calibrations VI: Photometric and Spectroscopic Calibration for the Integral Field Spectrograph
• Measured Diameters of 2 F-stars in the Beta Pic Moving Group

Cited by in corpus (349)

• SPHERE: the exoplanet imager for the Very Large Telescope
• BANYAN. XI. The BANYAN $\Sigma$ multivariate Bayesian algorithm to identify members of young associations within 150 pc
• The Gemini Planet Imager Exoplanet Survey: Giant Planet and Brown Dwarf Demographics From 10-100 AU
• Imaging Extrasolar Giant Planets
• Exoplanetary Atmospheres: Key Insights, Challenges and Prospects
• A population study of gaseous exoplanets
• Population Properties of Brown Dwarf Analogs to Exoplanets
• The Hawaii Infrared Parallax Program. II. Young Ultracool Field Dwarfs
• The SPHERE infrared survey for exoplanets (SHINE). III. The demographics of young giant exoplanets below 300 au with SPHERE
• An accurate, extensive, and practical line list of methane for the HITEMP database
• Exoplanetary Atmospheres - Chemistry, Formation Conditions, and Habitability
• A High-Precision NIR Survey for RV Variable Low-Mass Stars
• Discovery of a warm, dusty giant planet around HIP65426
• Multiple Disk Gaps and Rings Generated by a Single Super-Earth
• The New Generation Planetary Population Synthesis (NGPPS). I. Bern global model of planet formation and evolution, model tests, and emerging planetary systems
• Population-Level Eccentricity Distributions of Imaged Exoplanets and Brown Dwarf Companions: Dynamical Evidence for Distinct Formation Channels
• A self-consistent cloud model for brown dwarfs and young giant exoplanets: comparison with photometric and spectroscopic observations
• Exoplanet Biosignatures: Observational Prospects
• Spectral and atmospheric characterization of 51 Eridani b using VLT/SPHERE
• Direct detection of scattered light gaps in the transitional disk around HD 97048 with VLT/SPHERE
• Discovery of water at high spectral resolution in the atmosphere of 51 Peg b
• A Comparative Study of Atmospheric Chemistry with VULCAN
• Observing Exoplanets with High Dispersion Coronagraphy. I. The scientific potential of current and next-generation large ground and space telescopes
• MIRACLES: atmospheric characterization of directly imaged planets and substellar companions at 4-5 $\mu$m. I. Photometric analysis of $\beta$ Pic b, HIP 65426 b, PZ Tel B and HD 206893 B
• GENESIS: New Self-Consistent Models of Exoplanetary Spectra
• The VLT/NaCo large program to probe the occurrence of exoplanets and brown dwarfs at wide orbits. IV. Gravitational instability rarely forms wide, giant planets
• Characterizing 51 Eri b from 1-5 $\mu$m: a partly-cloudy exoplanet
• Beyond Equilibrium Temperature: How the Atmosphere/Interior Connection Affects the Onset of Methane, Ammonia, and Clouds in Warm Transiting Giant Planets
• Characterization of exoplanets from their formation III: The statistics of planetary luminosities
• Orbits for the Impatient: A Bayesian Rejection Sampling Method for Quickly Fitting the Orbits of Long-Period Exoplanets
• orvara: An Efficient Code to Fit Orbits using Radial Velocity, Absolute, and/or Relative Astrometry
• Characterizing Earth Analogs in Reflected Light: Atmospheric Retrieval Studies for Future Space Telescopes
• Improving and Assessing Planet Sensitivity of the GPI Exoplanet Survey with a Forward Model Matched Filter
• Aerosols in Exoplanet Atmospheres
• Retrieval of Exoplanet Emission Spectra with HyDRA
• Observing Exoplanets with High-Dispersion Coronagraphy. II. Demonstration of an Active Single-Mode Fiber Injection Unit
• All-sky Co-moving Recovery Of Nearby Young Members. (ACRONYM) II: The Beta Pictoris Moving Group
• The mass of the young planet Pictoris b through the astrometric motion of its host star
• 1 to 2.4 micron Near-IR spectrum of the Giant Planet $\beta$ Pictoris b obtained with the Gemini Planet Imager
• Atmospheric Regimes and Trends on Exoplanets and Brown Dwarfs
• Constraining Gas-Phase Carbon, Oxygen, and Nitrogen in the IM Lup Protoplanetary Disk
• Discovery of a low-mass companion inside the debris ring surrounding the F5V star HD206893
• Magellan Adaptive Optics first-light observations of the exoplanet beta Pic b. II. 3-5 micron direct imaging with MagAO+Clio, and the empirical bolometric luminosity of a self-luminous giant planet
• Photolytic Hazes in the Atmosphere of 51 Eri b
• New Avenues for Thermal Inversions in hot Jupiters
• Prospects for Characterizing the Atmosphere of Proxima Centauri b
• Direct Imaging Discovery of a Jovian Exoplanet Within a Triple Star System
• Zodiacal Exoplanets in Time (ZEIT) V: A Uniform Search for Transiting Planets in Young Clusters Observed by K2
• Let the Great World Spin: Revealing the Stormy, Turbulent Nature of Young Giant Exoplanet Analogs with the Spitzer Space Telescope
• Spectroscopic characterization of HD 95086 b with the Gemini Planet Imager
• An Empirical Planetesimal Belt Radius - Stellar Luminosity Relation
• SPHERE IRDIS and IFS astrometric strategy and calibration
• Astrometric Monitoring of the HR 8799 Planets: Orbit Constraints from Self-Consistent Measurements
• The GJ 504 system revisited. Combining interferometric, radial velocity, and high contrast imaging data
• High-Resolution ALMA Observations of HD100546: Asymmetric Circumstellar Ring, and Circumplanetary Disk Upper Limits
• Two Directly Imaged, Wide-orbit Giant Planets around the Young, Solar Analog TYC 8998-760-1
• AF Lep b: the lowest mass planet detected coupling astrometric and direct imaging data
• Direct imaging discovery of a super-Jovian around the young Sun-like star AF Leporis
• Direct Imaging and Astrometric Detection of a Gas Giant Planet Orbiting an Accelerating Star
• Calibration of quasi-static aberrations in exoplanet direct-imaging instruments with a Zernike phase-mask sensor. II. Concept validation with ZELDA on VLT/SPHERE
• Astrometric Confirmation and Preliminary Orbital Parameters of the Young Exoplanet 51 Eridani b with the Gemini Planet Imager
• The LEECH Exoplanet Imaging Survey: Limits on Planet Occurrence Rates Under Conservative Assumptions
• Discovery of a Substellar Companion to the Nearby Debris Disk Host HR 2562
• A Direct Imaging Survey of Spitzer detected debris disks: Occurrence of giant planets in dusty systems
• Evolution of Gas Giant Entropy During Formation by Runaway Accretion
• SPHERE/SHINE reveals concentric rings in the debris disk of HIP 73145
• The W. M. Keck Observatory infrared vortex coronagraph and a first image of HIP79124 B
• Sulfur Hazes in Giant Exoplanet Atmospheres: Impacts on Reflected Light Spectra
• Peering into the Giant Planet Forming Region of the TW Hydrae Disk with the Gemini Planet Imager
• The LEECH Exoplanet Imaging Survey: Characterization of the Coldest Directly Imaged Exoplanet, GJ 504 b, and Evidence for Super-Stellar Metallicity
• Cloud Atlas: Discovery of Patchy Clouds and High-amplitude Rotational Modulations In a Young, Extremely Red L-type Brown Dwarf
• The SPHERE infrared survey for exoplanets (SHINE) -- II. Observations, Data reduction and analysis Detection performances and early-results
• In-depth study of moderately young but extremely red, very dusty substellar companion HD206893B
• PynPoint: a modular pipeline architecture for processing and analysis of high-contrast imaging data
• Patchy Forsterite Clouds in the Atmospheres of Two Highly Variable Exoplanet Analogs
• The Measurement, Treatment, and Impact of Spectral Covariance and Bayesian Priors in Integral-Field Spectroscopy of Exoplanets
• Direct Imaging Discovery and Dynamical Mass of a Substellar Companion Orbiting an Accelerating Hyades Sun-like Star with SCExAO/CHARIS
• GPI spectra of HR 8799 c, d, and e from 1.5 to 2.4$\mu$m with KLIP Forward Modeling
• Characterizing the performance of the NIRC2 vortex coronagraph at W.M. Keck Observatory
• The First Spectrum of the Coldest Brown Dwarf
• On the Mass Function, Multiplicity, and Origins of Wide-Orbit Giant Planets
• Rotation Periods, Inclinations, and Obliquities of Cool Stars Hosting Directly Imaged Substellar Companions: Spin-Orbit Misalignments are Common
• BANYAN. XII. New Members of Nearby Young Associations from Gaia-Tycho Data
• On the Composition of Young, Directly Imaged Giant Planets
• Flares, Rotation, and Planets of the AU Mic System from TESS Observations
• The SPHERE infrared survey for exoplanets (SHINE)- I Sample definition and target characterization
• SCExAO/CHARIS Near-Infrared Direct Imaging, Spectroscopy, and Forward-Modeling of kappa And b: A Likely Young, Low-Gravity Superjovian Companion
• Surface Gravities for 228 M, L, and T Dwarfs in the NIRSPEC Brown Dwarf Spectroscopic Survey
• Direct imaging of an ultracool substellar companion to the exoplanet host star HD 4113A
• Planet populations inferred from debris discs: insights from 178 debris systems in the ISPY, LEECH and LIStEN planet-hunting surveys
• The Young Suns Exoplanet Survey: Detection of a wide orbit planetary mass companion to a solar-type Sco-Cen member
• The Planetary Accretion Shock. II. Grid of Post-Shock Entropies and Radiative Shock Efficiencies for Non-Equilibrium Radiation Transport
• The MKID Exoplanet Camera for Subaru SCExAO
• Spectroscopic Evolution of Disintegrating Planetesimals: Minutes to Months Variability in the Circumstellar Gas Associated with WD 1145+017
• Variability of the Lowest Mass Objects in the AB Doradus Moving Group
• Assessing the C/O Ratio Formation Diagnostic: A Potential Trend with Companion Mass
• Calibration of quasi-static aberrations in exoplanet direct-imaging instruments with a Zernike phase-mask sensor. III. On-sky validation in VLT/SPHERE
• The Metal-Rich Atmosphere of the Neptune HAT-P-26b
• On The Compatibility of Ground-based and Space-based Data: WASP-96 b, An Example
• SCExAO/CHARIS Direct Imaging Discovery of a 20 au Separation, Low-Mass Ratio Brown Dwarf Companion to an Accelerating Sun-like Star
• A search for a 5th planet around HR 8799 using the star-hopping RDI technique at VLT/SPHERE
• MASSIVE: A Bayesian analysis of giant planet populations around low-mass stars
• Adaptive Optics for Extremely Large Telescopes
• Spectroscopic confirmation of M-dwarf candidate members of the Beta Pictoris and AB Doradus Moving Groups
• 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
• Polarized scattered light from self-luminous exoplanets. Three-dimensional scattering radiative transfer with ARTES
• The coronagraphic Modal Wavefront Sensor: a hybrid focal-plane sensor for the high-contrast imaging of circumstellar environments
• A wide-orbit giant planet in the high-mass b Centauri binary system
• Spectral and orbital characterisation of the directly imaged giant planet HIP 65426 b
• Reaching the boundary between stellar kinematic groups and very wide binaries. III. Sixteen new stars and eight new wide systems in the beta Pictoris moving group
• The JWST Early Release Science Program for the Direct Imaging & Spectroscopy of Exoplanetary Systems
• The TRENDS High-Contrast Imaging Survey. VI. Discovery of a Mass, Age, and Metallicity Benchmark Brown Dwarf
• Outstanding Challenges of Exoplanet Atmospheric Retrievals
• Secular Dynamics of an Exterior Test Particle: The Inverse Kozai and Other Eccentricity-Inclination Resonances
• The Radial and Rotational Velocities of PSO J318.5338$-$22.8603, a Newly Confirmed Planetary-Mass Member of the $\beta$ Pictoris Moving Group
• High-contrast imaging of HD 163296 with the Keck/NIRC2 L'-band vortex coronograph
• The Gemini Planet Imager Exoplanet Survey: Dynamical Mass of the Exoplanet beta Pictoris b from Combined Direct Imaging and Astrometry
• Microlensing Searches for Exoplanets
• The Hawaii Infrared Parallax Program. V. New T-Dwarf Members and Candidate Members of Nearby Young Moving Groups
• The Second Discovery from the COol Companions ON Ultrawide orbiTS (COCONUTS) Program: A Cold Wide-Orbit Exoplanet around a Young Field M Dwarf at 10.9 pc
• COol Companions ON Ultrawide orbiTS (COCONUTS). I. A High-Gravity T4 Benchmark around an Old White Dwarf and A Re-Examination of the Surface-Gravity Dependence of the L/T Transition
• Hint of curvature in the orbital motion of the exoplanet 51 Eridani b using 3 years of VLT/SPHERE monitoring
• Discovery of a directly imaged planet to the young solar analog YSES 2
• Host star metallicity of directly imaged wide-orbit planets: implications for planet formation
• Two New Long-Period Giant Planets from the McDonald Observatory Planet Search and Two Stars with Long-Period Radial Velocity Signals Related to Stellar Activity Cycles
• True masses of the long-period companions to HD 92987 and HD 221420 from Hipparcos-Gaia astrometry
• The effect of radiative feedback on disc fragmentation
• The Elusive Majority of Young Moving Groups. I. Young Binaries and Lithium-Rich Stars in the Solar Neighborhood
• Reference-star differential imaging on SPHERE/IRDIS
• Peering into the Young Planetary System AB Pic. Atmosphere, Orbit, Obliquity & Second Planetary Candidate
• The Hawaii Infrared Parallax Program. III. 2MASS J0249-0557 c: A Wide Planetary-mass Companion to a Low-mass Binary in the beta Pic Moving Group
• ALMA 1.3 Millimeter Map of the HD 95086 System
• Stability and Occurrence Rate Constraints on the Planetary Sculpting Hypothesis for "Transitional" Disks
• Dynamical Mass of the Young Substellar Companion HD 984 B
• ISPY -- NACO Imaging Survey for Planets around Young stars: Survey description and results from the first 2.5 years of observations
• Evidence that the Directly-Imaged Planet HD 131399 Ab is a Background Star
• A $75\%$ Occurrence Rate of Debris Discs around F stars in the $\beta$ Pic Moving Group
• Effects of Latent Heating on Atmospheres of Brown Dwarfs and Directly Imaged Planets
• TRAP: A temporal systematics model for improved direct detection of exoplanets at small angular separations
• Is the Pale Blue Dot unique? Optimized photometric bands for identifying Earth-like exoplanets
• Synthetic Evolution Tracks of Giant Planets
• Direct characterization of young giant exoplanets at high spectral resolution by coupling SPHERE and CRIRES+
• Constraints on the occurrence and distribution of 1--20 \mj\ companions to stars at separations of 5--5000\,au from a compilation of direct imaging surveys
• Molecular mapping of the PDS70 system: No molecular absorption signatures from the forming planet PDS70 b
• STIM map: detection map for exoplanets imaging beyond asymptotic Gaussian residual speckle noise
• Considerations for Atmospheric Retrieval of High-Precision Brown Dwarf Spectra
• Using Data Imputation for Signal Separation in High Contrast Imaging
• Direct imaging and spectroscopy of exoplanets with the ELT/HARMONI high-contrast module
• Direct emission spectroscopy of exoplanets with the medium resolution imaging spectrometer on board JWST MIRI: I. Molecular mapping and sensitivity to instrumental effects
• Direct Imaging of the HD 35841 Debris Disk: A Polarized Dust Ring from Gemini Planet Imager and an Outer Halo from HST/STIS
• Active correction of aperture discontinuities - optimized stroke minimization II: optimization for future missions
• Retrieval study of cool, directly imaged exoplanet 51 Eri b
• The B-Star Exoplanet Abundance Study: a co-moving 16-25 Mjup companion to the young binary system HIP 79098
• A PCA-based approach for subtracting thermal background emission in high-contrast imaging data
• KELT-11 b: Abundances of water and constraints on carbon-bearing molecules from the Hubble transmission spectrum
• Cloud Atlas: High-Contrast Time-Resolved Observations of Planetary-Mass Companions
• Kernel-nulling for a robust direct interferometric detection of extrasolar planets
• 2MASS J13243553+6358281 is an Early T-Type Planetary-Mass Object in the AB Doradus Moving Group
• Revisiting the atmosphere of the exoplanet 51 Eridani b with VLT/SPHERE
• SPOTS: The Search for Planets Orbiting Two Stars. III. Complete Sample and Statistical Analysis
• Point Source Polarimetry with the Gemini Planet Imager: Sensitivity Characterization with T5.5 Dwarf Companion HD 19467 B
• WISE2150-7520AB: A very low mass, wide co-moving brown dwarf system discovered through the citizen science project Backyard Worlds: Planet 9
• Characterization of Exoplanet Atmospheres with the Optical Coronagraph on WFIRST
• Optical and Near-Infrared Spectra of sigma Orionis Isolated Planetary-mass Objects
• Formation of secondary atmospheres on terrestrial planets by late disk accretion
• Color Classification of Extrasolar Giant Planets: Prospects and Cautions
• The Orbital Eccentricities of Directly Imaged Companions Using Observable-Based Priors: Implications for Population-level Distributions
• ExoReL${}^{\Re }$: A Bayesian Inverse Retrieval Framework For Exoplanetary Reflected Light Spectra
• The mass of planet GJ676A b from ground-based astrometry: A planetary system with two mature gas giants suitable for direct imaging
• Dynamical Mass Measurement of the Young Spectroscopic Binary V343 Normae AaAb Resolved With the Gemini Planet Imager
• Towards on-sky adaptive optics control using reinforcement learning
• BEAST begins: Sample characteristics and survey performance of the B-star Exoplanet Abundance Study
• Limits on the Mass and Initial Entropy of 51 Eri b from Gaia EDR3 Astrometry
• No difference in orbital parameters of RV-detected giant planets between 0.1 and 5 au in single vs multi-stellar systems
• High contrast imaging at 10 microns, a search for exoplanets around: Eps Indi A, Eps Eri, Tau Ceti, Sirius A and Sirius B
• Supervised Machine Learning for Intercomparison of Model Grids of Brown Dwarfs: Application to GJ 570D and the Epsilon Indi B Binary System
• Integrating light-curve and atmospheric modelling of transiting exoplanets
• Jet Streams and Tracer Mixing in the Atmospheres of Brown Dwarfs and Isolated Young Giant Planets
• Zodiacal Exoplanets in Time (ZEIT) IX: a flat transmission spectrum and a highly eccentric orbit for the young Neptune K2-25b as revealed by Spitzer
• Atmospheric characterization of directly imaged exoplanets with JWST/MIRI
• Radial Velocity Discovery of an Eccentric Jovian World Orbiting at 18 au
• GPI Spectroscopy of the Mass, Age, and Metallicity Benchmark Brown Dwarf HD 4747 B
• A scaled-up planetary system around a supernova progenitor
• Upper limits on protolunar disc masses using ALMA observations of directly-imaged exoplanets
• The Effect of Protoplanetary Disk Cooling Times on the Formation of Gas Giant Planets by Gravitational Instability
• Orbital and spectral characterization of the benchmark T-type brown dwarf HD 19467B
• Occurrence Rates from Direct Imaging Surveys
• SCExAO and GPI $YJH$ Band Photometry and Integral Field Spectroscopy of the Young Brown Dwarf Companion to HD 1160
• VLT/SPHERE astrometric confirmation and orbital analysis of the brown dwarf companion HR 2562 B
• WASP-117 b: an eccentric hot-Saturn as a future complex chemistry laboratory
• Exploring H${}_2$O Prominence in Reflection Spectra of Cool Giant Planets
• Detecting Exomoons Around Self-luminous Giant Exoplanets Through Polarization
• An updated visual orbit of the directly-imaged exoplanet 51 Eridani b and prospects for a dynamical mass measurement with Gaia
• SCExAO/MEC and CHARIS Discovery of a Low Mass, 6 AU-Separation Companion to HIP 109427 using Stochastic Speckle Discrimination and High-Contrast Spectroscopy
• Investigating the detectability of hydrocarbons in exoplanet atmospheres with JWST
• On-sky verification of Fast and Furious focal-plane wavefront sensing: Moving forward toward controlling the island effect at Subaru/SCExAO
• The Near Infrared Imager and Slitless Spectrograph for the James Webb Space Telescope -- IV. Aperture Masking Interferometry
• Convective dynamics and disequilibrium chemistry in the atmospheres of giant planets and brown dwarfs
• JWST-TST High Contrast: Living on the Wedge, or, NIRCam Bar Coronagraphy Reveals CO${}_2$ in the HR 8799 and 51 Eri Exoplanets' Atmospheres
• TOI-2046b, TOI-1181b and TOI-1516b, three new hot Jupiters from \textit{TESS}: planets orbiting a young star, a subgiant and a normal star
• Imaging exoplanets with coronagraphic instruments
• PSYM-WIDE: a survey for large-separation planetary-mass companions to late spectral type members of young moving groups
• Single conjugate adaptive optics for the ELT instrument METIS
• Constrained Reference Star Differential Imaging: Enabling High-Fidelity Imagery of Highly Structured Circumstellar Disks
• Polynomial Apodizers for Centrally Obscured Vortex Coronagraphs
• Active correction of aperture discontinuities - optimized stroke minimization I: a new adaptive interaction matrix algorithm
• RefPlanets: Search for reflected light from extra-solar planets with SPHERE/ZIMPOL
• Simulated performance of the molecular mapping for young giant exoplanets with the Medium Resolution Spectrometer of JWST/MIRI
• Redder than Red: Discovery of an Exceptionally Red L/T Transition Dwarf
• The ESO SupJup Survey IV. Unveiling the carbon isotope ratio of GQ Lup B and its host star
• Deep orbital search for additional planets in the HR 8799 system
• Efficiently Imaging Accreting Protoplanets from Space: Reference Star Differential Imaging of the PDS 70 Planetary System using the HST/WFC3 Archival PSF Library
• Cloud Atlas: High-precision HST/WFC3/IR Time-Resolved Observations of Directly-Imaged Exoplanet HD106906b
• Increasing the raw contrast of VLT/SPHERE with the dark hole technique. I. Simulations and validation on the internal source
• On the Orbital Inclination of Proxima Centauri b
• Laboratory and On-Sky Validation of the Shaped Pupil Coronagraph's Sensitivity to Low-Order Aberrations With Active Wavefront Control
• WEIRD: Wide-orbit Exoplanet search with InfraRed Direct imaging
• Constraining the presence of giant planets in two-belt debris disk systems with VLT/SPHERE direct imaging and dynamical arguments
• Orbiting a binary: SPHERE characterisation of the HD 284149 system
• An Integrated Analysis with Predictions on the Architecture of the tau Ceti Planetary System, Including a Habitable Zone Planet
• Spitzer Light Curves of the Young, Planetary-Mass TW Hya Members 2MASS J11193254-1137466AB and WISEA J114724.10-204021.3
• A Bayesian Framework for Exoplanet Direct Detection and Non-Detection
• Review of high-contrast imaging systems for current and future ground- and space-based telescopes I. Coronagraph design methods and optical performance metrics
• Direct-imaging Discovery of a Substellar Companion Orbiting the Accelerating Variable Star, HIP 39017
• Multi-orbital-phase and multi-band characterization of exoplanetary atmospheres with reflected light spectra
• Visible and Near Infrared Laboratory Demonstration of a Simplified Pyramid Wavefront Sensor
• Rotation and Abundances of the Benchmark Brown Dwarf HD 33632 Ab from Keck/KPIC High-resolution Spectroscopy
• Apodized vortex coronagraph designs for segmented aperture telescopes
• New spectro-photometric characterization of the substellar object HR 2562 B using SPHERE
• Phase Quantization Study of Spatial Light Modulator for Extreme High contrast Imaging
• Thermal Infrared Imaging and Atmospheric Modeling of VHS J125601.92-125723.9 b: Evidence for Moderately Thick Clouds and Equilibrium Carbon Chemistry in a Hierarchical Triple System
• Modelling the Inner Debris Disc of HR 8799
• A high precision technique to correct for residual atmospheric dispersion in high-contrast imaging systems
• Combining angular differential imaging and accurate polarimetry with SPHERE/IRDIS to characterize young giant exoplanets
• Iterative Angular Differential Imaging (IADI): An exploration of recovering disk structures in scattered light with an iterative ADI approach
• Calibration of quasi-static aberrations in exoplanet direct-imaging instruments with a Zernike phase-mask sensor. IV. Temporal stability of non-common path aberrations in VLT/SPHERE
• Direct imaging of exoplanets: Legacy and prospects
• Prospects for Directly Imaging Young Giant Planets at Optical Wavelengths
• One-third of Sun-like stars are born with misaligned planet-forming disks
• In-depth direct imaging and spectroscopic characterization of the young Solar System analog HD 95086
• A Pilot Radio Search for Magnetic Activity in Directly Imaged Exoplanets
• Data Reduction and Image Reconstruction Techniques for Non-Redundant Masking
• Ultracool Dwarfs Observed with the Spitzer Infrared Spectrograph. I. An Accurate Look at the L-to-T Transition at $\sim$300 Myr from Optical through Mid-infrared Spectrophotometry
• Stochastic Speckle Discrimination with Time-Tagged Photon Lists: Digging Below the Speckle Noise Floor
• High-contrast observations of brown dwarf companion HR 2562 B with the vector Apodizing Phase Plate coronagraph
• A decade of radial-velocity monitoring of Vega and new limits on the presence of planets
• L-band Spectroscopy with Magellan-AO/Clio2: First Results on Young Low-Mass Companions
• ExoLyn: a golden mean approach to multi-species cloud modelling in atmospheric retrieval
• The Demographics of Wide-Separation Planets
• Implementing focal-plane phase masks optimized for real telescope apertures with SLM-based digital adaptive coronagraphy
• Calibration of residual aberrations in exoplanet imagers with large numbers of degrees of freedom
• The COBREX archival survey: improved constraints on the occurrence rate of wide-orbit substellar companions. I. A uniform re-analysis of 400 stars from the GPIES survey
• Constraints on the nearby exoplanet $\epsilon$ Ind Ab from deep near/mid-infrared imaging limits
• Trade-offs in high-contrast integral field spectroscopy for exoplanet detection and characterisation: Young gas giants in emission
• Kernel nullers for an arbitrary number of apertures
• SCExAO and Keck Direct Imaging Discovery of a Low-Mass Companion Around the Accelerating F5 Star HIP 5319
• Search for giant planets around seven white dwarfs in the Hyades cluster with the Hubble Space Telescope
• Traces of exomoons in computed flux and polarization phase curves of starlight reflected by exoplanets
• Direct Imaging discovery of a second planet candidate around the possibly transiting planet host CVSO 30
• Recovering saturated images for high dynamic Kernel-Phase analysis Application to the determination of dynamical masses for the system Gl 494AB
• Constraining masses and separations of unseen companions to five accelerating nearby stars
• Direct Imaging Discovery of a Young Brown Dwarf Companion to an A2V Star
• The Scorpion Planet Survey: Wide-Orbit Giant Planets Around Young A-type Stars
• The Feasibility of Directly Imaging Nearby Cold Jovian Planets with MIRI/JWST
• Use the 4S (Signal-Safe Speckle Subtraction): Explainable Machine Learning reveals the Giant Exoplanet AF Lep b in High-Contrast Imaging Data from 2011
• Portable Adaptive Optics for Exoplanet Imaging
• An Early Catalog of Planet Hosting Multiple Star Systems of Order Three and Higher
• Multiband imaging of the HD 36546 debris disk: a refined view from SCExAO/CHARIS
• Spectral unmixing for exoplanet direct detection in hyperspectral data
• Spectral and angular differential imaging with SPHERE/IFS. Assessing the performance of various PCA-based approaches to PSF subtraction
• The Likelihood of Detecting Young Giant Planets with High Contrast Imaging and Interferometry
• Mapping the Skies of Ultracool Worlds: Detecting Storms and Spots with Extremely Large Telescopes
• A High-Resolution Spectroscopic Survey of Directly Imaged Companion Hosts: I. Determination of diagnostic stellar abundances for planet formation and composition
• Instrumentation prospects for rocky exoplanet atmospheres studies with high resolution spectroscopy
• Breaking degeneracies in exoplanetary parameters through self-consistent atmosphere-interior modelling
• The infrared colors of 51 Eridani b: micrometereoid dust or chemical disequilibrium?
• Zodiacal Exoplanets in Time (ZEIT) XII: A Directly-Imaged Planetary-Mass Companion to a Young Taurus M Dwarf Star
• First on-sky demonstration of spatial Linear Dark Field Control with the vector-Apodizing Phase Plate at Subaru/SCExAO
• Planet detection down to a few $\lambda$/D: an RSDI/TLOCI approach to PSF subtraction
• Detecting Biosignatures in Nearby Rocky Exoplanets using High-Contrast Imaging and Medium-Resolution Spectroscopy with Extremely Large Telescope
• Direct Spectroscopy of 51 Eridani b with JWST NIRSpec
• CFBDSIR 2149-0403: young isolated planetary-mass object or high-metallicity low-mass brown dwarf??
• ISPY - the NaCo Imaging Survey for Planets around Young stars: A young companion candidate embedded in the R CrA cloud
• Narrow belt of debris around the Sco-Cen star HD 141011
• A deep search for planets in the inner 15 au around Vega
• Confirming the least massive members of the Pleiades star cluster
• Laboratory Demonstration of Spatial Linear Dark Field Control For Imaging Extrasolar Planets in Reflected Light
• BEAST detection of a brown dwarf and a low-mass stellar companion around the young bright B star HIP 81208
• Unveiling wide-orbit companions to K-type stars in Sco-Cen with Gaia EDR3
• COol Companions ON Ultrawide orbiTS (COCONUTS). III. A Very Red L6 Benchmark Brown Dwarf around a Young M5 Dwarf
• Atmospheric Characterization and Further Orbital Modeling of $\kappa$ And b
• HD 28185 Revisited: An Outer Planet, Instead of a Brown Dwarf, On a Saturn-like Orbit
• X-SHYNE: X-Shooter spectra of young exoplanet analogs II. Presentation and analysis of the full library
• Information-theoretical Limits of Recursive Estimation and Closed-loop Control in High-contrast Imaging
• Post-processing CHARIS integral field spectrograph data with PyKLIP
• CO${}_2$ collision-induced line parameters for the ${\nu }_3$ band of ${}^{12}$CH${}_4$ measured using a hard-collision speed-dependent line shape and the relaxation matrix formalism
• Probing Photon Statistics in Adaptive Optics Images with SCExAO/MEC
• Applying a temporal systematics model to vector Apodizing Phase Plate coronagraphic data: TRAP4vAPP
• Integral field spectroscopy with the solar gravitational lens
• Converting the sub-Jovian desert of exoplanets to a savanna with TESS, PLATO and Ariel
• Mining the GPIES database
• Low-order wavefront control using a Zernike sensor through Lyot coronagraphs for exoplanet imaging: II. Concurrent operation with stroke minimization
• Seeking echoes of circumstellar disks in Kepler light curves
• Constraints on Planets in Nearby Young Moving Groups Detectable by High-Contrast Imaging and Gaia Astrometry
• Dynamical masses of M-dwarf binaries in young moving groups: II - Toward empirical mass-luminosity isochrones
• The Bi-O-edge wavefront sensor: How Foucault-knife-edge variants can boost eXtreme Adaptive Optics
• Effects of Mirror Seeing on High-Contrast Adaptive Optics Instruments
• The ExoGRAVITY survey: A K-band spectral library of giant exoplanet and brown dwarf companions
• Exoplanet Atmosphere Measurements from Direct Imaging
• Utilizing a Database of Simulated Geometric Albedo Spectra for Photometric Characterization of Rocky Exoplanet Atmospheres
• WIde Separation Planets In Time (WISPIT): Two directly imaged exoplanets around the Sun-like stellar binary WISPIT 1
• The Direct Mid-Infrared Detectability of Habitable-zone Exoplanets Around Nearby Stars
• An L+T Spectral Binary with Possible AB Doradus Kinematics
• Weighing stars from birth to death: mass determination methods across the HRD
• VLT/SPHERE survey for exoplanets around young, early-type stars including systems with multi-belt architectures
• SAFARI I: A SPHERE discovery of a super metal-rich M dwarf companion to the star HD 86006
• Informed systematic method to identify variable mid and late-T dwarfs
• GPI+SPHERE detection of a 6.1 $M_{\text{Jup}}$ circumbinary planet around HD 143811
• High-contrast integral field spectropolarimetry of planet-forming disks with SCExAO/CHARIS
• Model of the Search For Extraterrestrial Intelligence with Coronagraphic Imaging
• Tracing the Top-of-the-atmosphere and Vertical Cloud Structure of a fast-rotating late T-dwarf
• Combining Photometry and Astrometry to Improve Orbit Retrieval of Directly Imaged Exoplanets
• A multi-technique detection of an eccentric giant planet around accelerating star HD 57625
• An optimised survey strategy for the ERIS/NIX imager: searching for young giant exoplanets and very low mass brown dwarfs using the K-peak custom photometric filter
• Apodized Pupil Lyot Coronagraphs with arbitrary aperture telescopes: novel designs using hybrid focal plane masks
• Spectral cube extraction for the VLT/SPHERE IFS: Open-source pipeline with full forward modeling and improved sensitivity
• Planet Search with the Keck/NIRC2 Vortex Coronagraph in Ms-band for Vega
• 2MASS J04435686+3723033 B: A Young Companion at the Substellar Boundary with Potential Membership in the $\beta$ Pictoris Moving Group
• Exoplanets Sciences with Nulling Interferometers and a Single-Mode Fiber-Fed Spectrograph
• A High-Resolution Spectroscopic Survey of Directly Imaged Companion Hosts: II. Diversity in C/O Ratios among Host Stars
• HD 143811 AB b: A Directly Imaged Planet Orbiting a Spectroscopic Binary in Sco-Cen
• Redundant apodization for direct imaging of exoplanets 2: Application to island effects
• Active focal-plane coronagraphy with liquid-crystal spatial-light modulators: Broadband contrast performance in the visible
• Machine learning for exoplanet detection in high-contrast spectroscopy Combining cross correlation maps and deep learning on medium-resolution integral-field spectra
• Discovery of a Nearby Habitable Zone Super-Earth Candidate Amenable to Direct Imaging
• High contrast imaging of exoplanets on ELTs using a super-Nyquist wavefront control scheme
• Recovering simulated planet and disk signals using SCALES aperture masking
• Apache Point Observatory follow-up of ACcelerating Candidate ExopLanet host Stars (APO ACCELS): Ages for 166 Accelerating Stars in the Northern Hemisphere
• The Brown Dwarf Kinematics Project (BDKP). V. Radial and Rotational Velocities of T Dwarfs from Keck/NIRSPEC High-Resolution Spectroscopy
• Detecting Exoplanets Using Eclipsing Binaries as Natural Starshades
• Direct Imaging Discovery of Giant Exoplanet $\beta$ Pictoris d: A Decade-Long Game of Hide-and-Seek
• A planetary-mass candidate imaged in the Young Suns Exoplanet Survey
• Keck Observations in the INfrared of Taurus and $\rho$ Oph Exoplanets And Ultracool dwarfs (KOINTREAU) II: Two Young Bound Companions to Ophiuchus Stars
• Stellar flare study of nearby young moving group members with TESS Data
• Low-order wavefront control using a Zernike sensor through Lyot coronagraphs for exoplanet imaging
• Toward the Analysis of JWST Exoplanet Spectra: the effective temperature in the context of direct imaging
• The Directly-Imaged Exoplanet Host Star 51 Eridani is a Gamma Doradus Pulsator
• Imaging exoplanets below the telescope stability limit
• The Nearest, Brightest Debris Disk Host Stars: Updated Photosphere Models and Dust Properties for Stars with Saturated 2MASS Photometry