SL
S. K. Leggett
astro-ph.SRastro-phastro-ph.EPastro-ph.GAastro-ph.IMastro-ph.COcond-mat.mtrl-sci
On Valency
published · living versionsW_z6dgcwtt·v1 · currentpublished
The Y-Type Brown Dwarfs: Estimates of Mass and Age from New Astrometry, Homogenized Photometry and Near-Infrared Spectroscopy
with P. Tremblin, T. L. Esplin, K. L. Luhman, Caroline V. Morley
1 version
W_2rfyps5q·v1published
Preprints & journals
129 papers in the corpus · 1998–2026Consistent Multi-Wavelength Spectral Modeling of Cool White Dwarfs with Carbon-Polluted Atmospheres2607.19002v1 · Jay Farihi, Piotr M. Kowalski, Sandy K. Leggett et al.2026 · 0 citationsarXiv
A Spitzer Space Telescope Exploration Science Program to Search for Y Dwarf Variability2606.26411v1 · Michael C. Cushing, Jesica L. Trucks, Kevin K. Hardegree-Ullman et al.2026 · 0 citationsarXiv
The Y Dwarf Companion to the White Dwarf WD 0806-66: Resolving the Discrepancy Between Atmospheric and Evolutionary Models2606.04294v1 · S. K. Leggett, Pascal Tremblin2026 · 0 citationsarXiv
The Coldest Known Y Dwarfs: Estimates of their Effective Temperatures2603.24740v1 · S. K. Leggett2026 · 0 citationsarXiv
Exploration of the Near-Infrared Colors of Cold Y Dwarfs from the Ground and Space2509.05514v1 · S. K. Leggett, Mark W. Phillips, Pascal Tremblin2025 · 5 citationsarXiv
Silicate precursor silane detected in cold low-metallicity brown dwarf.40903599 · Faherty, Jacqueline K, Meisner, Aaron M, Burningham, Ben et al.2025 · 15 citationsNature. 2025;645(8079):62-66
JWST 1.5 {\mu}m and 4.8 {\mu}m Photometry of Y Dwarfs2501.14100v1 · Loic Albert, Sandy K. Leggett, Per Calissendorff et al.2025 · 5 citationsarXiv
Redshifting the Study of Cold Brown Dwarfs and Exoplanets: the Mid-Infrared Wavelength Region as an Indicator of Surface Gravity and Mass2411.03549v2 · S. K. Leggett, Pascal Tremblin2024 · 8 citationsarXiv
Disequilibrium Chemistry, Diabatic Thermal Structure, and Clouds in the Atmosphere of COCONUTS-2b2410.10939v2 · Zhoujian Zhang, Sagnick Mukherjee, Michael C. Liu et al.2024 · 12 citationsarXiv
Y Dwarfs: The Challenge of Discovering the Coldest Substellar Population in the Solar Neighborhood2409.06158v1 · Sandy K. Leggett2024 · 0 citationsarXiv
The First Y Dwarf Data From JWST Show That Dynamic and Diabatic Processes Regulate Cold Brown Dwarf Atmospheres2309.14567v1 · S. K. Leggett, Pascal Tremblin2023 · 20 citationsarXiv
JWST/NIRCam discovery of the first Y+Y brown dwarf binary: WISE J033605.05$-$014350.42303.16923v1 · Per Calissendorff, Matthew De Furio, Michael Meyer et al.2023 · 32 citationsarXiv
Disk or Companion: Characterizing Excess Infrared Flux in Seven White Dwarf Systems with Near-Infrared Spectroscopy2303.16330v1 · Dylan Owens, Siyi Xu, Elena Manjavacas et al.2023 · 12 citationsarXiv
Exploring the Extremes: Characterizing a New Population of Old and Cold Brown Dwarfs2301.09817v1 · A. M. Meisner, S. K. Leggett, S. E. Logsdon et al.2023 · 41 citationsarXiv
A Spectro-photometric Analysis of Cool White Dwarfs in the Gaia and Pan-STARRS Footprint2212.08014v1 · Alexandre Caron, Pierre Bergeron, Simon Blouin et al.2022 · 47 citationsarXiv
On the Nature of Ultracool White Dwarfs: Not so Cool Afterall2206.03174v1 · P. Bergeron, Mukremin Kilic, Simon Blouin et al.2022 · 33 citationsarXiv
Gemini/GMOS Transmission Spectroscopy of the Grazing Planet Candidate WD 1856+534 b2110.14106v1 · Siyi Xu, Hannah Diamond-Lowe, Ryan J. MacDonald et al.2021 · 14 citationsarXiv
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 Spectrophotometry2107.14282v1 · Genaro Su'arez, Stanimir Metchev, Sandy K. Leggett et al.2021 · 16 citationsarXiv
Infrared Excesses around Bright White Dwarfs from Gaia and unWISE. II2107.01221v2 · Samuel Lai, Erik Dennihy, Siyi Xu et al.2021 · 35 citationsarXiv
Measuring and Replicating the 1-20 um Energy Distributions of the Coldest Brown Dwarfs: Rotating, Turbulent and Non-Adiabatic Atmospheres2107.00696v1 · S. K. Leggett, Pascal Tremblin, Mark W. Phillips et al.2021 · 2 citationsarXiv
Faint Standards for ZYJHK from the UKIDSS and VISTA Surveys2001.10660v1 · S. K. Leggett, Nicholas J. G. Cross, Nigel C. Hambly2020 · 3 citationsarXiv
Strategic Scientific Plan for Gemini Observatory1909.09196v1 · J. P. Blakeslee, A. Adamson, C. Davis et al.2019 · 1 citationarXiv
3.8um Imaging of 400-600K Brown Dwarfs and Orbital Constraints for WISEP J045853.90+643452.6AB1907.07798v2 · S. K. Leggett, Trent J. Dupuy, Caroline V. Morley et al.2019 · 23 citationsarXiv
Discovery of Cold Brown Dwarfs or Free-Floating Giant Planets Close to the Sun1903.04686v1 · Sandy K. Leggett, Daniel Apai, Adam Burgasser et al.2019 · 2 citationsarXiv
Distant White Dwarfs in the US Naval Observatory Flagstaff Station Parallax Sample1809.10803v1 · S. K. Leggett, P. Bergeron, John P. Subasavage et al.2018 · 25 citationsarXiv
CCD Parallaxes for 309 Late-type Dwarfs and Subdwarfs1709.02729v1 · Conard C. Dahn, Hugh C. Harris, John P. Subasavage et al.2017 · 34 citationsarXiv
The Y-Type Brown Dwarfs: Estimates of Mass and Age from New Astrometry, Homogenized Photometry and Near-Infrared Spectroscopy1704.03573v1 · S. K. Leggett, P. Tremblin, T. L. Esplin et al.2017 · 96 citationsarXivon Valency
Parallaxes and Infrared Photometry of three Y0 dwarfs1703.10341v1 · R. L. Smart, D'aniel Apai, J. Davy Kirkpatrick et al.2017 · 8 citationsarXiv
Untangling the Near-IR Spectral Features in the Protoplanetary Environment of KH 15D1611.09319v1 · Nicole A. Arulanantham, William Herbst, Martha S. Gilmore et al.2016 · 9 citationsarXiv
Observed Variability at 1um and 4um in the Y0 Brown Dwarf WISEP J173835.52+273258.91607.07888v1 · S. K. Leggett, Michael C. Cushing, Kevin K. Hardegree-Ullman et al.2016 · 42 citationsarXiv
Near-Infrared Spectroscopy of the Y0 WISEP J173835.52+273258.9 and the Y1 WISE J035000.32-565830.2: the Importance of Non-Equilibrium Chemistry1603.09400v1 · S. K. Leggett, P. Tremblin, D. Saumon et al.2016 · 30 citationsarXiv
The Mass-Luminosity Relation in the L/T Transition: Individual Dynamical Masses for the New J-Band Flux Reversal Binary SDSSJ105213.51+442255.7AB1503.06212v1 · Trent J. Dupuy, Michael C. Liu, S. K. Leggett et al.2015 · 44 citationsarXiv
Methane and Ammonia in the near-infrared spectra of late T dwarfs1503.04715v1 · J. I. Canty, P.W. Lucas, Sergei N. Yurchenko et al.2015 · 58 citationsarXiv
Discovery of a Low-Luminosity, Tight Substellar Binary at the T/Y Transition1502.04707v1 · Trent J. Dupuy, Michael C. Liu, S. K. Leggett2015 · 43 citationsarXiv
Near-infrared photometry of Y dwarfs: low ammonia abundance and the onset of water clouds1411.2020v2 · S. K. Leggett, Caroline V. Morley, M. S. Marley et al.2014 · 84 citationsarXiv
Discovery of a new Y dwarf: WISE J030449.03-270508.31408.0284v1 · D. J. Pinfield, M. Gromadzki, S. K. Leggett et al.2014 · 34 citationsarXiv
White Dwarfs In The UKIRT Infrared Deep Sky Survey Data Release 91405.0266v1 · P.-E. Tremblay, S. K. Leggett, N. Lodieu et al.2014 · 8 citationsarXiv
Resolved Spectroscopy of the T8.5 and Y0-0.5 Binary WISEPC J121756.91+162640.2AB1311.2108v1 · S. K. Leggett, Michael C. Liu, Trent J. Dupuy et al.2013 · 20 citationsarXiv
The Binary White Dwarf LHS 32361309.1173v1 · Hugh Harris, Conard Dahn, Trent Dupuy et al.2013 · 12 citationsarXiv
A deep WISE search for very late type objects and the discovery of two halo/thick-disk T dwarfs: WISE 0013+0634 and WISE 0833+00521308.0495v1 · D. J. Pinfield, J. Gomes, A. C. Day-Jones et al.2013 · 38 citationsarXiv
NPARSEC: NTT Parallaxes of Southern Extremely Cool objects. Goals, targets, procedures and first results1306.4527v1 · R. L. Smart, C. G. Tinney, B. Bucciarelli et al.2013 · 65 citationsarXiv
Seventy six T dwarfs from the UKIDSS LAS: benchmarks, kinematics and an updated space density1304.7246v2 · Ben Burningham, C. V. Cardoso, L. Smith et al.2013 · 125 citationsarXiv
A Comparison of Near-Infrared Photometry and Spectra for Y Dwarfs with a New Generation of Cool Cloudy Models1212.1210v2 · S. K. Leggett, Caroline V. Morley, M. S. Marley et al.2012 · 82 citationsarXiv
Towards an Understanding of the Atmospheres of Cool White Dwarfs1210.3192v1 · Piotr M. Kowalski, Didier Saumon, Jay Holberg et al.2012 · 0 citationsarXiv
The Frequency of Debris Disks at White Dwarfs1209.3310v1 · Sara D. Barber, Adam J. Patterson, Mukremin Kilic et al.2012 · 98 citationsarXiv
Locating the Trailing Edge of the Circumbinary Ring in the KH 15D System1208.5497v1 · Holly L. Capelo, William Herbst, S. K. Leggett et al.2012 · 62 citationsarXiv
Neglected Clouds in T and Y Dwarf Atmospheres1206.4313v2 · Caroline V. Morley, Jonathan J. Fortney, Mark S. Marley et al.2012 · 465 citationsarXiv
Two Extraordinary Substellar Binaries at the T/Y Transition and the Y-Band Fluxes of the Coolest Brown Dwarfs1206.4044v2 · Michael C. Liu (IfA/Hawaii), Trent J. Dupuy (CfA/SAO), Brendan P. Bowler (IfA/Hawaii) et al.2012 · 90 citationsarXiv
GNOMOS: The Gemini NIR-Optical Multi Object Spectrograph1203.4229v2 · Ricardo P. Schiavon, Andy Adamson, Kristin Chiboucas et al.2012 · 0 citationsarXiv
Discovery of the benchmark metal poor T8 dwarf BD+01 2920B1201.3243v1 · D. J. Pinfield, B. Burningham, N. Lodieu et al.2012 · 80 citationsarXiv
Career total: at least 428 works. 129 are in this corpus.Showing the 50 most recent.
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