Discoveries from a Near-infrared Proper Motion Survey using Multi-epoch 2MASS Data

Abstract

We have conducted a 4030-square-deg near-infrared proper motion survey using multi-epoch data from the Two Micron All-Sky Survey (2MASS). We find 2778 proper motion candidates, 647 of which are not listed in SIMBAD. After comparison to DSS images, we find that 107 of our proper motion candidates lack counterparts at B-, R-, and I-bands and are thus 2MASS-only detections. We present results of spectroscopic follow-up of 188 targets that include the infrared-only sources along with selected optical-counterpart sources with faint reduced proper motions or interesting colors. We also establish a set of near-infrared spectroscopic standards with which to anchor near-infrared classifications for our objects. Among the discoveries are six young field brown dwarfs, five "red L" dwarfs, three L-type subdwarfs, twelve M-type subdwarfs, eight "blue L" dwarfs, and several T dwarfs. We further refine the definitions of these exotic classes to aid future identification of similar objects. We examine their kinematics and find that both the "blue L" and "red L" dwarfs appear to be drawn from a relatively old population. This survey provides a glimpse of the kinds of research that will be possible through time-domain infrared projects such as the UKIDSS Large Area Survey, various VISTA surveys, and WISE, and also through z- or y-band enabled, multi-epoch surveys such as Pan-STARRS and LSST.

To appear in the September 2010 issue of The Astrophysical Journal, Supplement Series

References in corpus (24)

• The UKIRT Infrared Deep Sky Survey (UKIDSS)
• Young L Dwarfs Identified in the Field: A Preliminary Low-Gravity, Optical Spectral Sequence from L0 to L5
• A Sample of Very Young Field L Dwarfs and Implications for the Brown Dwarf "Lithium Test" at Early Ages
• Revised metallicity classes for low-mass stars: dwarfs (dM), subdwarfs (sdM), extreme subdwarfs (esdM), and ultra subdwarfs (usdM)
• The MagE Spectrograph
• Discovery of 11 New T Dwarfs in the Two Micron All-Sky Survey, Including a Possible L/T Transition Binary
• Discovery of Two Nearby, Peculiar L Dwarfs from the 2MASS Proper Motion Survey: Young or Metal-Rich?
• Clouds, Gravity and Metallicity in Blue L dwarfs: The Case of 2MASS J11263991-5003550
• A Survey for New Members of Taurus with the Spitzer Space Telescope
• Optical Spectroscopy of 2MASS Color-Selected Ultracool Subdwarfs
• Discovery of a T Dwarf Binary with the Largest Known J-Band Flux Reversal
• An Infrared High Proper Motion Survey Using 2MASS and SDSS: Discovery of M, L and T Dwarfs
• Discovery of a Wide Substellar Companion to a Nearby Low-Mass Star
• The Trigonometric Parallax of the Brown Dwarf Planetary System 2MASSW J1207334-393254
• SDSS J080531.84+481233.0: An Unresolved L Dwarf/T Dwarf Binary
• Parallax and Luminosity Measurements of an L Subdwarf
• Discovery of a nearby L-T transition object in the Southern Galactic plane
• Southern Infrared Proper Motion Survey II: A sample of low mass stars with μ> 0.1''/yr
• Ultra-cool dwarfs: new discoveries, proper motions, and improved spectral typing from SDSS and 2MASS photometric colors
• New High Proper Motion Stars from the Digitized Sky Survey. IV. Completion of the Southern Survey and 170 Additional Stars with pm>0.45 arcsec/yr
• Trigonometric parallaxes of ten ultracool subdwarfs
• The UKIDSS-2MASS Proper Motion Survey I: Ultracool dwarfs from UKIDSS DR4
• The Solar Neighborhood. XVIII. Discovery of new proper motion stars with 0.40 arcsec yr^-1 > mu >= 0.18 arcsec yr^-1 between declinations -90 degrees and -47 degrees
• Ultracool Subdwarfs: The Halo Population Down to the Substellar Limit

Cited by in corpus (216)

• Further Defining Spectral Type "Y" and Exploring the Low-mass End of the Field Brown Dwarf Mass Function
• Fundamental Parameters and Spectral Energy Distributions of Young and Field Age Objects with Masses Spanning the Stellar to Planetary Regime
• A Near-Infrared Spectroscopic Study of Young Field Ultracool Dwarfs
• BANYAN. II. Very Low Mass and Substellar Candidate Members to Nearby, Young Kinematic Groups With Previously Known Signs of Youth
• Weather on Other Worlds. II. Survey Results: Spots Are Ubiquitous on L and T Dwarfs
• An ultrahot gas-giant exoplanet with a stratosphere
• Population Properties of Brown Dwarf Analogs to Exoplanets
• The Hawaii Infrared Parallax Program. II. Young Ultracool Field Dwarfs
• The Extremely Red, Young L Dwarf PSO J318-22: A Free-Floating Planetary-Mass Analog to Directly Imaged Young Gas-Giant Planets
• Low-Mass Tertiary Companions to Spectroscopic Binaries I: Common Proper Motion Survey for Wide Companions using 2MASS
• BANYAN. VII. A New Population of Young Substellar Candidate Members of Nearby Moving Groups from the BASS Survey
• Discovery of a ~250 K Brown Dwarf at 2 pc from the Sun
• Discovery of a Binary Brown Dwarf at 2 Parsecs from the Sun
• The Field Substellar Mass Function Based on the Full-sky 20-pc Census of 525 L, T, and Y Dwarfs
• 2MASSJ035523.51+113337.4: A Young, Dusty, Nearby, Isolated Brown Dwarf Resembling A Giant Exoplanet
• The AllWISE Motion Survey and The Quest for Cold Subdwarfs
• Brown Dwarf Photospheres are Patchy: A Hubble Space Telescope Near-infrared Spectroscopic Survey Finds Frequent Low-level Variability
• A Study of the Diverse T Dwarf Population Revealed by WISE
• Preliminary Trigonometric Parallaxes of 184 Late-T and Y Dwarfs and an Analysis of the Field Substellar Mass Function into the "Planetary" Mass Regime
• SpeX Spectroscopy of Unresolved Very Low Mass Binaries. II. Identification of Fourteen Candidate Binaries with Late-M/Early-L and T Dwarf Components
• Photometry and Proper Motions of M, L, and T Dwarfs from the Pan-STARRS1 3$\pi$ Survey
• Characterizing 51 Eri b from 1-5 $\mu$m: a partly-cloudy exoplanet
• On the Age of the TRAPPIST-1 System
• BANYAN. V. A Systematic All-Sky Survey for New Very Late-Type Low-Mass Stars and Brown Dwarfs in Nearby Young Moving Groups
• Refining the Census of the Upper Scorpius Association with Gaia
• All-sky Co-moving Recovery Of Nearby Young Members. (ACRONYM) II: The Beta Pictoris Moving Group
• A Volume-Limited Sample of Ultracool Dwarfs. I. Construction, Space Density, and a Gap in the L/T Transition
• Discovery of the Young L Dwarf WISE J1741102.78-464225.5
• 1 to 2.4 micron Near-IR spectrum of the Giant Planet $\beta$ Pictoris b obtained with the Gemini Planet Imager
• The Viewing Geometry of Brown Dwarfs Influences Their Observed Colours and Variability Properties
• Doppler Imaging of Exoplanets and Brown Dwarfs
• Atmospheric Regimes and Trends on Exoplanets and Brown Dwarfs
• A Survey for New Members of the Taurus Star-Forming Region with the Sloan Digital Sky Survey
• $ExtrasolarStorms$: Pressure-dependent Changes In Light Curve Phase In Brown Dwarfs From Simultaneous $Hubble$ and $Spitzer$ Observations
• Spectroscopic Confirmation of Young Planetary-Mass Companions on Wide Orbits
• Planets Around Low-Mass Stars (PALMS). I. A Substellar Companion to the Young M Dwarf 1RXS J235133.3+312720
• Resolved Near-Infrared Spectroscopy of WISE J104915.57-531906.1AB: A Flux-Reversal Binary at the L dwarf/T dwarf Transition
• A Search for L/T Transition Dwarfs With Pan-STARRS1 and WISE. II. L/T Transition Atmospheres and Young Discoveries
• The AllWISE Motion Survey, Part 2
• Atmospheres of Brown Dwarfs
• Discovery of an Unusually Red L-type Brown Dwarf
• A large spectroscopic sample of L and T dwarfs from UKIDSS LAS: peculiar objects, binaries, and space density
• Two bright z > 6 quasars from VST ATLAS and a new method of optical plus mid-infra-red colour selection
• An emission spectrum for WASP-121b measured across the 0.8-1.1 micron wavelength range using the Hubble Space Telescope
• Wide, Cool and Ultracool Companions to Nearby Stars from Pan-STARRS1
• Ultracool Dwarfs Observed with the Spitzer Infrared Spectrograph. II. Emergence and Sedimentation of Silicate Clouds in L Dwarfs, and Analysis of the Full M5--T9 Field Dwarf Spectroscopic Sample
• Nearby M, L, and T Dwarfs Discovered by the Wide-field Infrared Survey Explorer (WISE)
• A New Constraint on Reionization from Evolution of the Ly$\alpha$ Luminosity Function at $z\sim 6-7$ Probed by a Deep Census of $z=7.0$ Ly$\alpha$ Emitter Candidates to 0.3 $L^{\ast }$
• A Widely-Separated, Highly-Occluded Companion to the Nearby Low-Mass T Tauri Star TWA 30
• Two Directly Imaged, Wide-orbit Giant Planets around the Young, Solar Analog TYC 8998-760-1
• Primeval very low-mass stars and brown dwarfs. I. Six new L subdwarfs, classification and atmospheric properties
• The Hawaii Infrared Parallax Program. IV. A Comprehensive Parallax Survey of L0-T8 dwarfs with UKIRT
• Flares in Open Clusters with K2. II. Pleiades, Hyades, Praesepe, Ruprecht 147, and M67
• The Brown Dwarf Kinematics Project (BDKP). IV. Radial Velocities of 85 Late-M and L dwarfs with MagE
• Cloud Atlas: Discovery of Patchy Clouds and High-amplitude Rotational Modulations In a Young, Extremely Red L-type Brown Dwarf
• New Young Stars and Brown Dwarfs in the Upper Scorpius Association
• Parallaxes of Southern Extremely Cool objects (PARSEC) II: Spectroscopic Follow-up and Parallaxes of 52 Targets
• The Kappa Andromedae System: New Constraints on the Companion Mass, System Age & Further Multiplicity
• WISEA J114724.10-204021.3: A Free-Floating Planetary Mass Member of the TW Hya Association
• Two temperate super-Earths transiting a nearby late-type M dwarf
• GPI spectra of HR 8799 c, d, and e from 1.5 to 2.4$\mu$m with KLIP Forward Modeling
• The extremely red L dwarf ULAS J222711$-$004547 - dominated by dust
• A Proper Motion Survey Using the First Sky Pass of NEOWISE-Reactivation Data
• NPARSEC: NTT Parallaxes of Southern Extremely Cool objects. Goals, targets, procedures and first results
• Signatures of Cloud, Temperature, and Gravity From Spectra of the Closest Brown Dwarfs
• Surface Gravities for 228 M, L, and T Dwarfs in the NIRSPEC Brown Dwarf Spectroscopic Survey
• The Gaia Ultracool Dwarf Sample. I. Known L and T dwarfs and the first Gaia data release
• CHORUS II. Subaru/HSC Determination of the Ly$\alpha$ Luminosity Function at $z=7.0$: Constraints on Cosmic Reionization Model Parameter
• Substellar Objects in Nearby Young Clusters (SONYC) V: New brown dwarfs in rho Ophiuchi
• A Search for Variability in Exoplanet Analogues and Low-Gravity Brown Dwarfs
• The Ultracool SpeXtroscopic Survey. I. Volume-Limited Spectroscopic Sample and Luminosity Function of M7$-$L5 Ultracool Dwarfs
• A Pan-STARRS + UKIDSS Search for Young, Wide Planetary-Mass Companions in Upper Scorpius
• The sub-stellar birth rate from UKIDSS
• Photometric brown-dwarf classification. II. A homogeneous sample of 1361 L and T dwarfs brighter than J = 17.5 with accurate spectral types
• Young Galaxy Candidates in the Hubble Frontier Fields - III. MACSJ0717.5+3745
• A Targeted Search for Peculiarly Red L and T Dwarfs in SDSS, 2MASS, and WISE: Discovery of a Possible L7 Member of the TW Hydrae Association
• Exploring the Role of Sub-micron Sized Dust Grains in the Atmospheres of Red L0 - L6 Dwarfs
• Large Scale Environment of a $z=6.61$ Luminous Quasar Probed by Ly$\alpha$ Emitters and Lyman Break Galaxies
• Characterization of High Proper Motion Objects from the Wide-field Infrared Survey Explorer
• A high resolution spectroscopic atlas of M subdwarfs - Effective temperature and metallicity
• A 2MASS/AllWISE Search for Extremely Red L Dwarfs -- The Discovery of Several Likely L Type Members of $\beta$ Pic, AB Dor, Tuc-Hor, Argus, and the Hyades
• ASASSN-16ae: A Powerful White-Light Flare on an Early-L Dwarf
• Parallax measurements of cool brown dwarfs
• The Gaia Ultra-Cool Dwarf Sample -- II: Structure at the end of the main sequence
• New M, L, and T Dwarf Companions to Nearby Stars from the Wide-field Infrared Survey Explorer
• Photometric brown-dwarf classification. I. A method to identify and accurately classify large samples of brown dwarfs without spectroscopy
• A Survey For Planetary-mass Brown Dwarfs in the Taurus and Perseus Star-forming Regions
• Brown Dwarfs in Young Moving Groups from Pan-STARRS1. I. AB Doradus
• The Dawes Review 3: The Atmospheres of Extrasolar Planets and Brown Dwarfs
• WISEA J041451.67-585456.7 and WISEA J181006.18-101000.5: The First Extreme T-type Subdwarfs?
• New constraints on the formation and settling of dust in the atmospheres of young M and L dwarfs
• Retrieval of SDSS J1416+1348AB
• Primeval very low-mass stars and brown dwarfs - IV. New L subdwarfs, Gaia astrometry, population properties, and a blue brown dwarf binary
• Discovery of a Very Low Mass Triple with Late-M and T Dwarf Components: LP 704-48/SDSS J0006-0852AB
• The Hawaii Infrared Parallax Program. V. New T-Dwarf Members and Candidate Members of Nearby Young Moving Groups
• Discovery of a directly imaged planet to the young solar analog YSES 2
• 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
• Four new T dwarfs identified in PanSTARRS 1 commissioning data
• SDSS J141624.08+134826.7: Blue L Dwarfs and Non-Equilibrium Chemistry
• A Brown Dwarf Census from the SIMP Survey
• Astrometric Accelerations as Dynamical Beacons: Discovery and Characterization of HIP 21152 B, the First T-Dwarf Companion in the Hyades
• 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
• The Pan-STARRS1 Proper-motion Survey for Young Brown Dwarfs in Nearby Star-forming Regions. I. Taurus Discoveries and a Reddening-free Classification Method for Ultracool Dwarfs
• The Hyperactive L Dwarf 2MASS J13153094-2649513: Continued Emission and a Brown Dwarf Companion
• Giant white-light flares on fully convective stars occur at high latitudes
• Retrieval Study of Brown Dwarfs Across the L-T Sequence
• Evidence that the Directly-Imaged Planet HD 131399 Ab is a Background Star
• High-redshift galaxies and low-mass stars
• A Search for L/T Transition Dwarfs With Pan-STARRS1 and WISE: Discovery of Seven Nearby Objects Including Two Candidate Spectroscopic Variables
• Little Red Dots or Brown Dwarfs? NIRSpec Discovery of Three Distant Brown Dwarfs Masquerading as NIRCam-Selected Highly-Reddened AGNs
• A Very High Proper Motion Star and the First L dwarf in the Kepler Field
• An Eclipsing Substellar Binary in a Young Triple System discovered by SPECULOOS
• CCD Parallaxes for 309 Late-type Dwarfs and Subdwarfs
• A spectroscopic and proper motion search of Sloan digital Sky Survey: red subdwarfs in binary systems
• Cloud Atlas: Discovery of Rotational Spectral Modulations in a Low-mass, L-type Brown Dwarf Companion to a Star
• New ultracool subdwarfs identified in large-scale surveys using Virtual Observatory tools: Part I: UKIDSS LAS DR5 vs SDSS DR7
• One more neighbor: The first brown dwarf in the VVV survey
• Ultracool Dwarfs Observed with the Spitzer Infrared Spectrograph -- III. Dust Grains in Young L Dwarf Atmospheres Are Heavier
• High Resolution Imaging of Very Low Mass Spectral Binaries: Three Resolved Systems and Detection of Orbital Motion in an L/T Transition Binary
• A Search for L/T Transition Dwarfs With Pan-STARRS1 and WISE. III. Young L Dwarf Discoveries and Proper Motion Catalogs in Taurus and Scorpius-Centaurus
• A New Sample of Cool Subdwarfs from SDSS: Properties and Kinematics
• Identifying Ultra-Cool Dwarfs at Low Galactic Latitudes: A Southern Candidate Catalogue
• Discovery of Four High Proper Motion L Dwarfs, Including a 10 pc L Dwarf at the L/T Transition
• Optical and Near-Infrared Spectra of sigma Orionis Isolated Planetary-mass Objects
• WISE2150-7520AB: A very low mass, wide co-moving brown dwarf system discovered through the citizen science project Backyard Worlds: Planet 9
• A Reanalysis of the Fundamental Parameters and Age of TRAPPIST-1
• The VAST Survey - IV. A wide brown dwarf companion to the A3V star $\zeta$ Delphini
• Characterization of Stellar and Substellar Members in the Coma Berenices Star Cluster
• Detection of new strongly variable brown dwarfs in the L/T transition
• New ultracool subdwarfs identified in large-scale surveys using Virtual Observatory tools: II. SDSS DR7 vs UKIDSS LAS DR6, SDSS DR7 vs UKIDSS LAS DR8, SDSS DR9 vs UKIDSS LAS DR10, and SDSS DR7 vs 2MASS
• Spectroscopic Follow-Up of Discoveries from the NEOWISE Proper Motion Survey
• Characterization of the Very Low Mass Secondary in the GJ 660.1AB System
• A 1500 deg${}^2$ Near Infrared Proper Motion Catalogue from the UKIDSS Large Area Survey
• A Statistical Survey of Peculiar L and T Dwarfs in SDSS, 2MASS, and WISE
• A Novel Survey for Young Substellar Objects with the W-band Filter. I. Filter Design and New Discoveries in Ophiuchus and Perseus
• Gemini Planet Imager Spectroscopy of the Dusty Substellar Companion HD 206893 B
• $K2$ Ultracool Dwarfs Survey. VI. White light superflares observed on an L5 dwarf and flare rates of L dwarfs
• Early Results from VLT-SPHERE: Long-Slit Spectroscopy of 2MASS 0122-2439B, a Young Companion Near the Deuterium Burning Limit
• Discovery of a brown dwarf companion to the A3V star β Circini
• Youth analysis of near infrared spectra of young low-mass stars and brown dwarfs
• SCExAO and GPI $YJH$ Band Photometry and Integral Field Spectroscopy of the Young Brown Dwarf Companion to HD 1160
• Infrared Spectroscopy of free-floating planet candidates in Upper Scorpius and Ophiuchus
• Low-mass visual companions to nearby G-dwarfs
• Distant White Dwarfs in the US Naval Observatory Flagstaff Station Parallax Sample
• Discovery of Two Very Wide Binaries with Ultracool Companions and a New Brown Dwarf at the L/T Transition
• ATLAS Probe: Breakthrough Science of Galaxy Evolution, Cosmology, Milky Way, and the Solar System
• High Proper Motion Objects from the UKIDSS Galactic Plane Survey
• A novel survey for young substellar objects with the W-band filter VI: Spectroscopic census of sub-stellar members and the IMF of $\sigma$ Orionis cluster
• Integral Field Spectroscopy of the Low-Mass Companion HD984B with the Gemini Planet Imager
• A Novel Survey for Young Substellar Objects with the W-band filter II. The Coolest and Lowest Mass Members of the Serpens-South Star-forming Region
• The Oceanus Moving Group: A New 500 Myr-Old Host for the Nearest Brown Dwarf
• The First Brown Dwarf/Planetary-Mass Object in the 32 Orionis Group
• PSYM-WIDE: a survey for large-separation planetary-mass companions to late spectral type members of young moving groups
• Redder than Red: Discovery of an Exceptionally Red L/T Transition Dwarf
• Beyond the Local Volume. I. Surface Densities of Ultracool Dwarfs in Deep HST/WFC3 Parallel Fields
• Large Adaptive Optics Survey for Substellar Objects (LASSO) Around Young, Nearby, Low-mass Stars with Robo-AO
• Benchmark cool companions: Ages and abundances for the PZ Tel system
• Self-consistent atmosphere modeling with cloud formation for low-mass stars and exoplanets
• Parallax of the L4.5 dwarf 2M1821$+$14 from high-precision astrometry with OSIRIS at GTC
• Understanding Fundamental Properties and Atmospheric Features of Subdwarfs via a Case Study of SDSS J125637.13-022452.4
• Ultracool dwarf benchmarks with \emph{Gaia} primaries
• Detection of an Earth-sized exoplanet orbiting the nearby ultracool dwarf star SPECULOOS-3
• A search for lithium in metal-poor L dwarfs
• The SRG/eROSITA All-Sky Survey: X-ray beacons at late cosmic dawn
• A Late-type L Dwarf at 11 pc Hiding in the Galactic Plane Characterized Using Gaia DR2
• The $\text{Gaia}$ Ultra-Cool Dwarf Sample $-$ III: Seven new multiple systems containing at least one $\text{Gaia}$ DR2 ultra-cool dwarf
• Substellar and low-mass dwarf identification with near-infrared imaging space observatories
• TESS discovery of a super-Earth orbiting the M dwarf star TOI-1680
• A Systematic Search for Lensed High-Redshift Galaxies in HST Images of MACS Clusters
• Spectral Variability of Two Rapidly Rotating Brown Dwarfs: 2MASS J08354256-0819237 and 2MASS J18212815+1414010
• Joint Survey Processing I: Compact oddballs in the COSMOS field -- low-luminosity Quasars at z > 6?
• CWISE J014611.20-050850.0AB: The Widest Known Brown Dwarf Binary in the Field
• A new L-dwarf member of the moderately metal-poor triple system HD 221356
• Primeval very low-mass stars and brown dwarfs - V. A halo L3 subdwarf with prograde eccentric orbit in the Galactic plane
• The Perkins INfrared Exosatellite Survey (PINES) II. Transit Candidates and Implications for Planet Occurrence around L and T Dwarfs
• VVVX near-IR photometry for 99 low-mass stars in the Gaia EDR3 Catalog of Nearby Stars
• TOI-4336 A b: A temperate sub-Neptune ripe for atmospheric characterization in a nearby triple M-dwarf system
• L dwarfs detection from SDSS images using improved Faster R-CNN
• 2MASS J11151597+1937266: A Young, Dusty, Isolated, Planetary-Mass Object with a Potential Wide Stellar Companion
• A focus on L dwarfs with trigonometric parallaxes
• Science Commissioning of NIHTS: The Near-infrared High Throughput Spectrograph on the Lowell Discovery Telescope
• Backyard Worlds: Planet 9 Discovery of an Unusual Low-mass Companion to an M Dwarf at 80 pc
• COol Companions ON Ultrawide orbiTS (COCONUTS). III. A Very Red L6 Benchmark Brown Dwarf around a Young M5 Dwarf
• Discovery of a Possible Early-T Thick-Disk Subdwarf from the AllWISE2 Motion Survey
• Primeval very low-mass stars and brown dwarfs -- VIII. The first age benchmark L subdwarf, a wide companion to a halo white dwarf
• Spectroscopy of Candidate Members of the Sco-Cen Complex
• Atmospheric Characterization and Further Orbital Modeling of $\kappa$ And b
• Detecting free-floating planets using water-depend colour terms in the next generation of infrared space-based surveys
• Environment of the submillimeter-bright massive starburst HFLS3 at $z\sim$6.34
• A Novel Survey for Young Substellar Objects with the W band Filter.V. IC 348 and Barnard 5 in the Perseus Cloud
• Spectro-photometric characterization of high proper motion sources from WISE
• Detection of a low-mass stellar companion to the accelerating A2IV star HR 1645
• A Novel Survey for Young Substellar Objects with the W-band filter III: Searching for very low mass brown dwarfs in Serpens South and Serpens Core
• Long-term 4.6$\mu$m Variability in Brown Dwarfs and a New Technique for Identifying Brown Dwarf Binary Candidates
• Euclid: The potential of slitless infrared spectroscopy: A z=5.4 quasar and new ultracool dwarfs
• New ultracool dwarf candidates from multi-epoch WISE data
• An L+T Spectral Binary with Possible AB Doradus Kinematics
• The substellar population in Corona Australis
• Large Scale Searches for Brown Dwarfs and Free-Floating Planets
• Discovery of a brown dwarf with quasi-spherical mass-loss
• Near-infrared spectroscopic characterisation of Gaia ultra-cool dwarf candidates; Spectral types and peculiarities
• Diversity of Cold Worlds: A Near Complete Spectral Energy Distribution for 2MASS J04151954-0935066 using JWST
• The L dwarf/T dwarf transition: multiplicity, magnetic activity and mineral meteorology across the hydrogen burning limit
• Discovery of Two Different Full Disk Evolutionary Patterns of M-type T Tauri Stars with LAMOST DR8
• Low-resolution near-infrared spectroscopic signatures of unresolved ultracool companions to M dwarfs
• SDSS J100711.74+193056.2: A Candidate Common Motion Substellar Companion to the Nearest B-Type Star Regulus
• The Brown Dwarf Kinematics Project (BDKP). V. Radial and Rotational Velocities of T Dwarfs from Keck/NIRSPEC High-Resolution Spectroscopy
• Binary frequency of planet-host stars at wide separations: A new brown dwarf companion to a planet-host star
• The Gaia Ultracool Dwarf Sample -- IV. GTC/OSIRIS optical spectra of Gaia late-M and L dwarfs
• Spectroscopic Characterization of WD J000801.25-350450 and its Two Co-Moving Companions
• Using Old and New Approaches: Determining Physical Properties of Brown Dwarfs with Empirical Relations and Machine Learning Models
• JWST NIRSpec Spectral Standards for M, L, and T Dwarfs and Subdwarfs
• The kinematics of very low mass dwarfs: splinter session summary
• Two close binaries across the hydrogen-burning limit in the Praesepe open cluster
• Substellar Hyades Candidates from the UKIRT Hemisphere Survey
• Disentangling the Signatures of Blended-Light Atmospheres in L/T Transition Brown Dwarfs