BANYAN. XIII. A First Look at Nearby Young Associations with Gaia Data Release 2

Abstract

In this paper we examine the nearest 100 pc entries in the data release 2 of Gaia to identify previously unrecognized candidate members in young associations. We analyze 695 952 stars with the BANYAN Σ Bayesian classification software and discover 898 new high-likelihood candidate members that span a wide range in properties, from spectral types B9 to L2, including 104 co-moving systems, 111 brown dwarfs and 31 new bona fide members. Our sample is mostly composed of highly active M dwarfs and will be crucial to examine the low-mass end of the initial mass function of young associations. Our sample includes new candidate members near the Galactic plane where previous surveys suffered from a high rate of contamination. This paper represents the first step towards a full reassessment of young associations in the Solar neighborhood with the second data release of the Gaia mission.

Accepted for publication in ApJ. 45 pages, 5 tables, 14 figures

References in corpus (51)

• Gaia Data Release 2. Summary of the contents and survey properties
• The Transiting Exoplanet Survey Satellite
• The UKIRT Infrared Deep Sky Survey (UKIDSS)
• Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties
• Gaia Data Release 2: The astrometric solution
• Direct Imaging of Multiple Planets Orbiting the Star HR 8799
• Gaia Data Release 2: Photometric content and validation
• Gaia Data Release 2: using Gaia parallaxes
• The Evolution of L and T Dwarfs in Color-Magnitude Diagrams
• Constraining the Age-Activity Relation for Cool Stars: The SDSS DR5 Low-Mass Star Spectroscopic Sample
• Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 parsecs: The Southern Sample
• BANYAN. XI. The BANYAN $\Sigma$ multivariate Bayesian algorithm to identify members of young associations within 150 pc
• The Radial Velocity Experiment (RAVE): Fifth Data Release
• Second ROSAT all-sky survey (2RXS) source catalogue
• Pulkovo Compilation of Radial Velocities for 35495 Hipparcos Stars in a Common System
• Search for Associations Containing Young stars (SACY): I. Sample & Searching Method
• Trumpeting M Dwarfs with CONCH-SHELL: a Catalog of Nearby Cool Host-Stars for Habitable ExopLanets and Life
• Meeting the Cool Neighbors. IX. The Luminosity Function of M7-L8 Ultracool Dwarfs in the Field
• Gaia Radial Velocity Spectrometer
• A Sample of Very Young Field L Dwarfs and Implications for the Brown Dwarf "Lithium Test" at Early Ages
• Planets Around Low-Mass Stars (PALMS). IV. The Outer Architecture of M Dwarf Planetary Systems
• Activity and Kinematics of Ultracool Dwarfs Including An Amazing Flare Observation
• A Stellar Census of the Tucana-Horologium Moving Group
• CARMENES input catalogue of M dwarfs. I. Low-resolution spectroscopy with CAFOS
• Gaia Data Release 2: The Celestial reference frame (Gaia-CRF2)
• Gaia Data Release 2: The catalogue of radial velocity standard stars
• Gaia Data Release 2: processing of the photometric data
• The Age and Age Spread of the Praesepe and Hyades Clusters: a Consistent, ~800 Myr Picture from Rotating Stellar Models
• Gaia Data Release 2: Processing the spectroscopic data
• BANYAN. IV. Fundamental parameters of low-mass star candidates in nearby young stellar kinematic groups - Isochronal Age determination using Magnetic evolutionary models
• SpeX Spectroscopy of Unresolved Very Low Mass Binaries. II. Identification of Fourteen Candidate Binaries with Late-M/Early-L and T Dwarf Components
• The International Deep Planet Survey II: The frequency of directly imaged giant exoplanets with stellar mass
• BOSS Ultracool Dwarfs I: Colors and Magnetic Activity of M and L dwarfs
• BANYAN. V. A Systematic All-Sky Survey for New Very Late-Type Low-Mass Stars and Brown Dwarfs in Nearby Young Moving Groups
• All-sky Co-moving Recovery Of Nearby Young Members. (ACRONYM) II: The Beta Pictoris Moving Group
• The VLT/NaCo Large program to probe the occurrence of exoplanets and brown dwarfs in wide orbits: I- Sample definition and characterization
• The Spatial Distribution of Brown Dwarfs in Taurus
• Brown dwarfs and very low mass stars in the Hyades cluster : a dynamically evolved mass function
• Meeting the Cool Neighbors X: Ultracool dwarfs from the 2MASS All-Sky Data Release
• Discovery of new nearby L and late-M dwarfs at low Galactic latitude from the DENIS database
• A New Method to Identify Nearby, Young, Low-mass Stars
• BANYAN. IX. The Initial Mass Function and Planetary-Mass Object Space Density of the TW Hya Association
• BANYAN. XII. New Members of Nearby Young Associations from Gaia-Tycho Data
• New low-mass members of the Octans stellar association and an updated 30-40 Myr lithium age
• The LuckyCam Survey for Very Low Mass Binaries II: 13 new M4.5-M6.0 Binaries
• Planets Around Low-Mass Stars (PALMS). VI. Discovery of a Remarkably Red Planetary-Mass Companion to the AB Dor Moving Group Candidate 2MASS J22362452+4751425
• Accurate age determinations of several nearby open clusters containing magnetic Ap stars
• A New Brown Dwarf Desert? A Scarcity of Wide Ultracool Binaries
• Gaia Data Release 2. Calibration and mitigation of electronic offset effects in the data
• A Late-type L Dwarf at 11 pc Hiding in the Galactic Plane Characterized Using Gaia DR2
• BANYAN. X. Discovery of a wide, low-gravity L-type companion to a fast-rotating M3 dwarf

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• Past, Present and Future Stars that can see Earth as a Transiting Exoplanet
• FUMES. II. Ly$\alpha$ Reconstructions of Young, Active M Dwarfs
• A quarter century of spectroscopic monitoring of the nearby M dwarf Gl 514. A super-Earth on an eccentric orbit moving in and out of the habitable zone
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• Active Stars in the Spectroscopic Survey of Mid-to-Late M Dwarfs Within 15pc
• Dynamical Mass of the Young Brown Dwarf Companion PZ Tel B
• The GALAH Survey: Lithium-strong KM dwarfs
• Discovery of an Edge-on Circumstellar Debris Disk Around BD+45${}^{\circ }$598: a Newly Identifed Member of the $\beta$ Pictoris Moving Group
• Birth Sites of Young Stellar Associations and Recent Star Formation in a Flocculent Corrugated Disk
• Long-term stability of planets in and around binary stars
• Pearls on a String: Numerous Stellar Clusters Strung along the Same Orbit
• Discovery of new members of the nearby young stellar association in Cepheus
• YOUNG Star detrending for Transiting Exoplanet Recovery (YOUNGSTER) -- I. A search for young exoplanets in Sectors 1-5 of the TESS Full-Frame-Images
• A spectroscopically confirmed Gaia-selected sample of 318 new young stars within $\sim$200 pc
• Examining the Rotation Period Distribution of the 40 Myr Tucana-Horologium Association with TESS
• Low-mass members of nearby young stellar moving groups from Gaia EDR3
• Strong H$\alpha$ emission in the young planetary mass companion 2MASS J0249-0557 c
• A close-in puffy Neptune with hidden friends: The enigma of TOI 620
• Development of models for nearby young stellar moving groups: creation, revision, and finalisation of the models
• Disks in Nearby Young Stellar Associations Found Via Virtual Reality
• Reaching the boundary between stellar kinematic groups and very wide binaries. IV. The widest Washington double star systems with rho > 1000 arcsec in Gaia DR3
• COol Companions ON Ultrawide orbiTS (COCONUTS). III. A Very Red L6 Benchmark Brown Dwarf around a Young M5 Dwarf
• X-SHYNE: X-Shooter spectra of young exoplanet analogs II. Presentation and analysis of the full library
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• Chandra Observations of Six Peter Pan Disks: Diversity of X-ray-driven Internal Photoevaporation Rates Doesn't Explain Their Rare Longevity
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• A method to analyse velocity structure
• YOUNG Star detrending for Transiting Exoplanet Recovery (YOUNGSTER) II: Using Self-Organising Maps to explore young star variability in Sectors 1-13 of TESS data
• Bayesian ages of local young stellar associations I. Through the expansion rate method
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• Lost Sisters Found: TESS and Gaia Reveal a Dissolving Pleiades Complex
• Probing stellar rotation in the Pleiades with gravity-mode pulsators
• Abundant sub-micron grains revealed in newly discovered extreme debris discs
• A sub-Neptune transiting the young field star HD 18599 at 40 pc
• Flare frequency in M dwarfs belonging to Young Moving Groups
• Characterising Young Visual M-dwarf Binaries with Near-Infrared Integral Field Spectra
• Toward the fabric of the Milky Way I. The density of disk streams from a local $250^3$ pc${}^3$ volume
• Discovery of carbon monoxide emission from five debris disks around young A-type stars
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• Exoplanet detection and its dependence on stochastic sampling of the stellar Initial Mass Function
• Radial Velocities of Low-mass Candidate TWA Members
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• The Gaia Ultracool Dwarf Sample -- IV. GTC/OSIRIS optical spectra of Gaia late-M and L dwarfs
• The internal kinematics of local young stellar associations. Identifying correlations among age, expansion, rotation, and shear
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