Search Results - "Best, William M"

TWO EXTRAORDINARY SUBSTELLAR BINARIES AT THE T/Y TRANSITION AND THE Y-BAND FLUXES OF THE COOLEST BROWN DWARFS by LIU, Michael C, DUPUY, Trent J, BOWLER, Brendan P, LEGGETT, S. K, BEST, William M. J

“…Using Keck laser guide star adaptive optics imaging, we have found that the T9 dwarf WISE J1217+1626 and T8 dwarf WISE J1711+3500 are exceptional binaries,…”
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The Hawaii Infrared Parallax Program. VI. The Fundamental Properties of 1000+ Ultracool Dwarfs and Planetary-mass Objects Using Optical to Mid-infrared Spectral Energy Distributions and Comparison to BT-Settl and ATMO 2020 Model Atmospheres by Sanghi, Aniket, Liu, Michael C., Best, William M. J., Dupuy, Trent J., Siverd, Robert J., Zhang, Zhoujian, Hurt, Spencer A., Magnier, Eugene A., Aller, Kimberly M., Deacon, Niall R.

“…Abstract We derive the bolometric luminosities ( L bol ) of 865 field-age and 189 young ultracool dwarfs (spectral types M6–T9, including 40 new discoveries…”
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A Volume-limited Sample of Ultracool Dwarfs. II. The Substellar Age and Mass Functions in the Solar Neighborhood by Best, William M. J., Sanghi, Aniket, Liu, Michael C., Magnier, Eugene A., Dupuy, Trent J.

“…Abstract We present the most precise constraints to date for the mass and age distributions of single ultracool dwarfs in the solar neighborhood, based on an…”
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ALMA Discovery of a Disk around the Planetary-mass Companion SR 12 c by Wu, Ya-Lin, Bowler, Brendan P., Sheehan, Patrick D., Close, Laird M., Eisner, Joshua A., Best, William M. J., Ward-Duong, Kimberly, Zhu, Zhaohuan, Kraus, Adam L.

“…Abstract We report an Atacama Large Millimeter/submillimeter Array 0.88 mm (Band 7) continuum detection of the accretion disk around SR 12 c, an ∼11 M Jup…”
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Uniform Forward-modeling Analysis of Ultracool Dwarfs. III. Late-M and L Dwarfs in Young Moving Groups, the Pleiades, and the Hyades by Hurt, Spencer A., Liu, Michael C., Zhang, Zhoujian, Phillips, Mark, Allers, Katelyn N., Deacon, Niall R., Aller, Kimberly M., Best, William M. J.

“…Abstract We present a uniform forward-modeling analysis of 90 late-M and L dwarfs in nearby young (∼10–200 Myr) moving groups, the Pleiades, and the Hyades…”
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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 by Zhang, Zhoujian, Liu, Michael C., Best, William M. J., Magnier, Eugene A., Aller, Kimberly M., Chambers, K. C., Draper, P. W., Flewelling, H., Hodapp, K. W., Kaiser, N., Kudritzki, R.-P., Metcalfe, N., Wainscoat, R. J., Waters, C.

“…We are conducting a proper-motion survey for young brown dwarfs in the Taurus-Auriga molecular cloud based on the Pan-STARRS1 3π Survey. Our search uses…”
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The Hawaii Infrared Parallax Program. V. New T-dwarf Members and Candidate Members of Nearby Young Moving Groups by Zhang 张周, Zhoujian 健, Liu, Michael C., Best, William M. J., Dupuy, Trent J., Siverd, Robert J.

“…Abstract We present a search for new planetary-mass members of nearby young moving groups (YMGs) using astrometry for 694 T and Y dwarfs, including 447 objects…”
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Uniform Forward-modeling Analysis of Ultracool Dwarfs. II. Atmospheric Properties of 55 Late-T Dwarfs by Zhang, Zhoujian, Liu, Michael C., Marley, Mark S., Line, Michael R., Best, William M. J.

“…Abstract We present a large uniform forward-modeling analysis for 55 late-T (T7–T9) dwarfs, using low-resolution ( R ≈ 50–250) near-infrared (1.0–2.5 μ m)…”
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Uniform Forward-modeling Analysis of Ultracool Dwarfs. I. Methodology and Benchmarking by Zhang, Zhoujian, Liu, Michael C., Marley, Mark S., Line, Michael R., Best, William M. J.

“…Abstract We present a forward-modeling framework using the Bayesian inference tool Starfish and cloudless Sonora-Bobcat model atmospheres to analyze…”
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Using old and new approaches: determining physical properties of brown dwarfs with empirical relations and machine learning models by Feeser, S Jean, Best, William M J

“…ABSTRACT We investigate applications of machine learning models to directly infer physical properties of brown dwarfs from their photometry and spectra using…”
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A search for variability in exoplanet analogues and low-gravity brown dwarfs by Vos, Johanna M., Biller, Beth A., Bonavita, Mariangela, Eriksson, Simon, Liu, Michael C., Best, William M. J., Metchev, Stanimir, Radigan, Jacqueline, Allers, Katelyn N., Janson, Markus, Buenzli, Esther, Dupuy, Trent J., Bonnefoy, Mickael, Manjavacas, Elena, Brandner, Wolfgang, Crossfield, Ian, Deacon, Niall, Henning, Thomas, Homeier, Derek, Kopytova, Taisiya, Schlieder, Joshua

“…We report the results of a J-band survey for photometric variability in a sample of young, low-gravity objects using the New Technology Telescope (NTT) and the…”
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On the masses, age, and architecture of the VHS J1256−1257AB b system by Dupuy, Trent J, Liu, Michael C, Evans, Elise L, Best, William M J, Pearce, Logan A, Sanghi, Aniket, Phillips, Mark W, Bardalez Gagliuffi, Daniella C

“…ABSTRACT VHS J1256−1257 AB is an ultracool dwarf binary that hosts a wide-separation planetary-mass companion that is a key target of the JWST Exoplanet Early…”
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A Uniform Retrieval Analysis of Ultra-cool Dwarfs. IV. A Statistical Census from 50 Late-T Dwarfs by Zalesky, Joseph A., Saboi, Kezman, Line, Michael R., Zhang, Zhoujian, Schneider, Adam C., Liu, Michael C., Best, William M. J., Marley, Mark S.

“…Abstract The spectra of brown dwarfs are key to exploring the chemistry and physics that take place in their atmospheres. Late-T dwarf spectra are particularly…”
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The TEMPO Survey. I. Predicting Yields of Transiting Exosatellites, Moons, and Planets from a 30 days Survey of Orion with the Roman Space Telescope by Limbach, Mary Anne, Soares-Furtado, Melinda, Vanderburg, Andrew, Best, William M. J., Cody, Ann Marie, D’Onghia, Elena, Heller, René, Hensley, Brandon S., Kounkel, Marina, Kraus, Adam, Mann, Andrew W., Robberto, Massimo, Rosen, Anna L., Townsend, Richard, Vos, Johanna M.

“…Abstract We present design considerations for the Transiting Exosatellites, Moons, and Planets in Orion (TEMPO) Survey with the Nancy Grace Roman Space…”
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BROWN DWARFS IN YOUNG MOVING GROUPS FROM PAN-STARRS1. I. AB DORADUS by Aller, Kimberly M., Liu, Michael C., Magnier, Eugene A., Best, William M. J., Kotson, Michael C., Burgett, William S., Chambers, Kenneth C., Hodapp, Klaus W., Flewelling, Heather, Kaiser, Nick, Metcalf, Nigel, Tonry, John L., Wainscoat, Richard J., Waters, Christopher

“…ABSTRACT Substellar members of young ( 150 Myr) moving groups are valuable benchmarks to empirically define brown dwarf evolution with age and to study the…”
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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 by Best, William M. J., Liu, Michael C., Magnier, Eugene A., Bowler, Brendan P., Aller, Kimberly M., Zhang, Zhoujian, Kotson, Michael C., Burgett, W. S., Chambers, K. C., Draper, P. W., Flewelling, H., Hodapp, K. W., Kaiser, N., Metcalfe, N., Wainscoat, R. J., Waters, C.

“…We present the discovery of eight young M7-L2 dwarfs in the Taurus star-forming region and the Scorpius-Centaurus OB Association, serendipitously found during…”
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3.8 μm Imaging of 400–600 K Brown Dwarfs and Orbital Constraints for WISEP J045853.90+643452.6AB by Leggett, S. K., Dupuy, Trent J., Morley, Caroline V., Marley, Mark S., Best, William M. J., Liu, Michael C., Apai, D., Casewell, S. L., Geballe, T. R., Gizis, John E., Pineda, J. Sebastian, Rieke, Marcia, Wright, G. S.

“…Abstract Half of the energy emitted by late-T- and Y-type brown dwarfs emerges at 3.5 ≤  λ μ m ≤ 5.5. We present new L ′ (3.43 ≤  λ μ m ≤ 4.11) photometry…”
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A PARAMETRIC MODELING APPROACH TO MEASURING THE GAS MASSES OF CIRCUMSTELLAR DISKS by Williams, Jonathan P, Best, William M J

“…The disks that surround young stars are mostly composed of molecular gas, which is harder to detect and interpret than the accompanying dust. Disk mass…”
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THE BRIGHTENING OF Re50N: ACCRETION EVENT OR DUST CLEARING? by Chiang, Hsin-Fang, Reipurth, Bo, Walawender, Josh, Connelley, Michael S., Pessev, Peter, Geballe, T. R., Best, William M. J., Paegert, Martin

“…ABSTRACT The luminous Class I protostar HBC 494, embedded in the Orion A cloud, is associated with a pair of reflection nebulae, Re50 and Re50N, which appeared…”
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A SEARCH FOR L/T TRANSITION DWARFS WITH Pan-STARRS1 AND WISE : DISCOVERY OF SEVEN NEARBY OBJECTS INCLUDING TWO CANDIDATE SPECTROSCOPIC VARIABLES by Best, William M J, Liu, Michael C, Magnier, Eugene A, Aller, Kimberly M, Deacon, Niall R, Dupuy, Trent J, Redstone, Joshua, Burgett, W S, Chambers, K C, Hodapp, K W

“…We present initial results from a wide-field (30,000 deg super(2)) search for L/T transition brown dwarfs within 25 pc using the Pan-STARRS1 and Wide-field…”
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