The ultracool-field dwarf luminosity-function and space density from the Canada-France Brown Dwarf Survey [PDF]
, 2010 Context. Thanks to recent and ongoing large scale surveys, hundreds of brown dwarfs have been discovered in the last decade. The Canada-France Brown Dwarf Survey is a wide-field survey for cool brown dwarfs conducted with the MegaCam camera on the Canada-
Allen +73 more
core +5 more sources
The Classification of T Dwarfs [PDF]
, 2001 15 pages, 6 figures, conference proceedings for IAU Ultracool Dwarf Stars session, ed. I.
Burgasser, A. J. +2 more
openaire +5 more sources
A Statistical Survey of Peculiar L and T Dwarfs in SDSS, 2MASS, and WISE [PDF]
, 2017 We present the final results from a targeted search for brown dwarfs with unusual near-infrared colors. From a positional cross-match of the Sloan Digital Sky Survey (SDSS), 2-Micron All-Sky Survey (2MASS), and Wide-Field Infrared Survey Explorer (WISE ...
K. Kellogg +3 more
semanticscholar +1 more source
Parallaxes of Southern Extremely Cool objects III: 118 L and T dwarfs [PDF]
Monthly notices of the Royal Astronomical Society, 2018 We present new results from the Parallaxes of Southern Extremely Cool dwarfs program to measure parallaxes, proper motions and multiepoch photometry of L and early T dwarfs.
R. Smart +20 more
semanticscholar +1 more source
Discovery of 11 New T Dwarfs in the Two Micron All-Sky Survey, Including a Possible L/T Transition Binary [PDF]
, 2007 We present the discovery of 11 new T dwarfs, found during the course of a photometric survey for mid-to-late T dwarfs in the 2MASS Point Source Catalog and from a proper motion selected sample of ultracool dwarfs in the 2MASS Working Database.
Burgasser, Adam J. +2 more
core +4 more sources
The Temperatures of White Dwarfs in Dwarf Novae [PDF]
International Astronomical Union Colloquium, 1996 AbstractWe attempt to measure the temperature of all the quiescent dwarf novae that have been observed with IUE, by fitting the observed flux distribution of white dwarfs (WDs) with known temperatures. This approach gives results similar to those using much more sophisticated modelling, but allows us to investigate the relationship with system ...
C. La Dous, B. J. M. Hassall
openaire +2 more sources
Uniform Atmospheric Retrieval Analysis of Ultracool Dwarfs. II. Properties of 11 T dwarfs [PDF]
, 2016 Brown dwarf spectra are rich in information revealing of the chemical and physical processes operating in their atmospheres. We apply a recently developed atmospheric retrieval tool to an ensemble of late-T dwarf (600–800 K) near-infrared (1–2.5 μm ...
M. Line +9 more
semanticscholar +1 more source
L-dwarf Detection from SDSS Images using Improved Faster R-CNN
The Astronomical Journal, 2023 We present a data-driven approach to automatically detect L dwarfs from Sloan Digital Sky Survey (SDSS) images using an improved Faster R-CNN framework based on deep learning.
Zhi Cao +6 more
doaj +1 more source
A Cross-Match of 2MASS and SDSS. II. Peculiar L Dwarfs, Unresolved Binaries, and the Space Density of T Dwarf Secondaries [PDF]
, 2011 We present the completion of a program to cross-correlate the SDSS Data Release 1 and 2MASS Point Source Catalog in search for extremely red L and T dwarfs.
Abazajian +54 more
core +2 more sources
TRIGONOMETRIC PARALLAXES AND PROPER MOTIONS OF 134 SOUTHERN LATE M, L, AND T DWARFS FROM THE CARNEGIE ASTROMETRIC PLANET SEARCH PROGRAM [PDF]
, 2016 We report trigonometric parallaxes for 134 low-mass stars and brown dwarfs, of which 38 have no previously published measurement and 79 more have improved uncertainties. Our survey focused on nearby targets, so 119 are closer than 30 pc.
A. Weinberger +5 more
semanticscholar +1 more source