Results 1 to 10 of about 13,215,097 (282)

Infrared Photometry of Late‐M, L, and T Dwarfs [PDF]

The Astrophysical Journal, 2002
We present ZJHKL'M' photometry of a sample of 58 late-M, L, and T dwarfs, most of which are identified from the Sloan Digital Sky Survey and the Two Micron All-Sky Survey. Near-infrared spectra and spectral classifications for most of this sample are presented in a companion paper by Geballe et al.
Leggett, S K, Golimowski, D A, Fan, X H, Geballe, T R, Knapp, G R, Brinkmann, J, Csabai, I, Gunn, J E, Hawley, S L, Henry, T J, Hindsley, R, Ivezic, Z, Lupton, R H, Pier, J R, Schneider, D P, Smyth, J A, Strauss, M A, Uomoto, A, York, D G   +18 more
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Kepler And L Dwarfs [PDF]

, 2014
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Gizis, John (5302501), Gizis, John
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BOSS ULTRACOOL DWARFS. I. COLORS AND MAGNETIC ACTIVITY OF M AND L DWARFS [PDF]

The Astronomical Journal, 2015
We present the colors and activity of ultracool (M7-L8) dwarfs from the Tenth Data Release of the Sloan Digital Sky Survey (SDSS). We combine previous samples of SDSS M and L dwarfs with new data obtained from the Baryon Oscillation Sky Survey (BOSS) to produce the BOSS Ultracool Dwarf (BUD) sample of 11820 M7-L8 dwarfs.
Sarah J. Schmidt, Suzanne L. Hawley, Andrew A. West, John J. Bochanski, James R. A. Davenport, Jian Ge, Donald P. Schneider   +6 more
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A Spitzer Space Telescope Exploration Science Program to Search for Y-dwarf Variability

The Astronomical Journal
We present the results of a Spitzer Space Telescope Exploration Science Program to search for and characterize variability in Y dwarfs. We observed 14 Y dwarfs over a 24 hr period at [3.6] and [4.5] and then repeated the observations a few months later ...
Michael C. Cushing, Jesica L. Trucks, Kevin K. Hardegree-Ullman, Adam J. Burgasser, Sean J. Carey, Jonathan J. Fortney, Christopher R. Gelino, John E. Gizis, J. Davy Kirkpatrick, Sandy Leggett, Gregory N. Mace, Mark S. Marley, Caroline V. Morley   +12 more
doaj   +1 more source

Three Brown Dwarfs Masquerading as High-redshift Galaxies in JWST Observations

The Astrophysical Journal
We report the spectroscopic identification of three brown dwarf candidates—o005_s41280, o006_s00089, and o006_s35616—discovered in RUBIES using James Webb Space Telescope (JWST) Near-Infrared Spectrograph PRISM/CLEAR spectroscopy.
Zhijun Tu, Shu Wang, Xiaodian Chen, Jifeng Liu   +3 more
doaj   +1 more source

A Large Sample of JWST/NIRSpec Brown Dwarfs: New Distant Discoveries

The Astrophysical Journal Supplement Series
Brown dwarfs are essential probes of stellar and planetary formation, yet their low luminosities pose challenges for detection at large Galactic distances.
Zhijun Tu, Shu Wang, Xiaodian Chen, Jifeng Liu   +3 more
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Space Velocities of L‐ and T‐Type Dwarfs

The Astrophysical Journal, 2007
Accepted for publication in ...
Zapatero Osorio, M. R., Martin, E. L., Béjar, V. J. S., Bouy, H., Deshpande, R., Wainscoat, R. J.   +5 more
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Comparing Grid Model Fitting Methodologies for Low-temperature Atmospheres: Markov Chain Monte Carlo versus Random Forest Retrieval

The Astrophysical Journal
The atmospheres of low-temperature stars, brown dwarfs, and exoplanets are challenging to model due to strong molecular features and complex gas and condensate chemistry.
Anna Lueber, Adam J. Burgasser
doaj   +1 more source

The L to T Dwarf Transition

, 2004
4 pages, 6 figures, proceedings from the 13th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun, Hamburg, Germany, July 2004, ESA-SP, in ...
Marley, M. S., Cushing, M. C., Saumon, D.   +2 more
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Discovery of the Remarkably Red L/T Transition Object VHS J183135.58-551355.9

The Astronomical Journal
We present the discovery of VHS J183135.58−551355.9 (hereafter VHS J1831−5513), an L/T transition dwarf identified as a result of its unusually red near-infrared colors ( J − K _S = 3.633 ± 0.277 mag; J − W 2 = 6.249 ± 0.245 mag) from the VISTA ...
Thomas P. Bickle, Adam C. Schneider, Jonathan Gagné, Jacqueline K. Faherty, Austin Rothermich, Johanna M. Vos, Genaro Suárez, J. Davy Kirkpatrick, Aaron M. Meisner, Marc J. Kuchner, Adam J. Burgasser, Federico Marocco, Sarah L. Casewell, Dan Caselden, Daniella C. Bardalez Gagliuffi, The Backyard Worlds: Planet 9 Collaboration   +15 more
doaj   +1 more source