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
Binaries and the L Dwarf/T Dwarf Transition [PDF]
The Astrophysical Journal, 2007 51 pages, 14 figures; accepted for publication in ...
openaire +2 more sources
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
A SURVEY FOR Hα EMISSION FROM LATE L DWARFS AND T DWARFS* [PDF]
The Astrophysical Journal, 2016 ABSTRACT Recently, studies of brown dwarfs have demonstrated that they possess strong magnetic fields and have the potential to produce radio and optical auroral emissions powered by magnetospheric currents. This emission provides the only window on magnetic fields in the coolest brown dwarfs and identifying additional benchmark objects ...
Pineda, J +5 more
openaire +3 more sources
First T dwarfs in the VISTA Hemisphere Survey [PDF]
Astronomy & Astrophysics, 2012 The aim of the project is to improve our current knowledge of the density of T dwarfs and the shape of the substellar initial mass function by identifying a magnitude-limited sample of T dwarfs in the full southern sky. We present the results of a photometric search aimed at discovering cool brown dwarfs in the Southern sky imaged at infrared ...
Lodieu, N +23 more
openaire +8 more sources
Stellar equilibrium configurations of white dwarfs in the f(R, T) gravity
European Physical Journal C: Particles and Fields, 2017 In this work we investigate the equilibrium configurations of white dwarfs in a modified gravity theory, namely, f(R, T) gravity, for which R and T stand for the Ricci scalar and trace of the energy-momentum tensor, respectively.
G. A. Carvalho +6 more
doaj +1 more source
The Spectra of T Dwarfs I: Near-Infrared Data and Spectral Classification [PDF]
, 2001 We present near-infrared spectra for a sample of T dwarfs, including eleven new discoveries made using the Two Micron All Sky Survey. These objects are distinguished from warmer (L-type) brown dwarfs by the presence of methane absorption bands in the 1 ...
Adam Burrows +26 more
core +5 more sources
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
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 +3 more sources
Primeval very low-mass stars and brown dwarfs - VI. Population properties of metal-poor degenerate brown dwarfs [PDF]
, 2019 © 2019 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society.We presented 15 new T dwarfs that were selected from UKIRT Infrared Deep Sky Survey, Visible and Infrared Survey Telescope for Astronomy, and Wide ...
Allard, F. +6 more
core +5 more sources