Results 31 to 40 of about 6,740 (303)
Binaries and the L Dwarf/T Dwarf Transition [PDF]
The Astrophysical Journal, 2007 51 pages, 14 figures; accepted for publication in ...
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The 2MASS Wide-Field T Dwarf Search. IV. Hunting Out T Dwarfs with Methane Imaging [PDF]
The Astronomical Journal, 2005 We present first results from a major program of methane filter photometry for low-mass stars and brown dwarfs. The definition of a new methane filter photometric system is described. A recipe is provided for the differential calibration of methane imaging data using existing 2MASS photometry.
Tinney, C. G. +3 more
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Dwarf Archives: A Compendium of M, L, and T Dwarf Data [PDF]
AIP Conference Proceedings, 2009 Dwarf Archives is an online archive containing astrometric, photometric, and spectroscopic information for all known L and T dwarfs (over 650 objects), as well as a select sample of over 500 M dwarfs. In this paper, we describe the specific data available in the archive, the interface for searching through it and discuss plans for future updates.
Christopher R. Gelino +3 more
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Informed Systematic Method to identify mid and late-T dwarfs
, 2022 We designed and tested near-infrared spectral indices to pre-select the most likely variable midand late-T dwarfs, which overlap in effective temperatures with directly-imaged exoplanets.
Ashraf, Afra +15 more
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Young T-dwarf candidates in IC 348 [PDF]
Astronomy & Astrophysics, 2009 The determination of the lower-end of the initial mass function (IMF) provides strong constraints on star formation theories. We report here on a search for isolated planetary-mass objects in the 3 Myr-old star-forming region IC 348. Deep, narrowband CH4off and CH4on images were obtained with CFHT/WIRCam over 0.11 sq.deg.
Burgess, A. S. M. +5 more
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NEGLECTED CLOUDS IN T AND Y DWARF ATMOSPHERES [PDF]
The Astrophysical Journal, 2012 17 pages, 12 figures, Accepted for publication in ...
Morley, Caroline V. +5 more
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Discovery of the Brightest T Dwarf in the Northern Hemisphere [PDF]
The Astrophysical Journal, 2006 4 pages, 3 figures, To be published in November 1, 2006 issue of ApJL.
Artigau, Etienne +5 more
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ULAS J141623.94+134836.3: A BLUE T DWARF COMPANION TO A BLUE L DWARF [PDF]
The Astronomical Journal, 2010 We confirm the substellar nature of ULAS J141623.94+134836.3, a common proper motion companion to the blue L dwarf SDSS J141624.08+134826.7 identified by Burningham et al. and Scholz. Low-resolution 0.8-2.4 micron spectroscopy obtained with IRTF/SpeX shows strong H2O and CH4 absorption bands, consistent with a T7.5 spectral type, and we see possible ...
Burgasser, Adam J. +2 more
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THE ORBIT OF THE L DWARF + T DWARF SPECTRAL BINARY SDSS J080531.84+481233.0* [PDF]
The Astrophysical Journal, 2016 ABSTRACT SDSS J080531.84+481233.0 is a closely separated, very-low-mass (VLM) binary identified through combined-light spectroscopy and confirmed as an astrometric variable. Here we report four years of radial velocity monitoring observations of the system that reveal significant and periodic variability, confirming the binary nature of ...
Adam J. Burgasser +4 more
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L and T Dwarf Models and the L to T Transition [PDF]
The Astrophysical Journal, 2006 accepted to the Astrophysical Journal, 21 figures (20 in color); spectral models in electronic form available at http://zenith.as.arizona.edu ...
Burrows, Adam +2 more
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