Results 161 to 170 of about 6,740 (303)
, 2008 . We discuss a new program to measure the parallaxes of a number of L and T dwarfs, objects that bridge the gap between M dwarfs and planets. This pilot project tests the feasibility of using large telescopes with infrared detectors to determine ...
H. R. A. Jones +4 more
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A Uniform Retrieval Analysis of Ultra-cool Dwarfs. IV. A Statistical Census from 50 Late T-dwarfs
, 2020 : The spectra of brown dwarfs are key to exploring the chemistry and physics thattake place in their atmospheres. Late T dwarf (950 - 500 K) spectra are particularly diagnostic due to their relatively cloud free atmospheres and deep molecular bands. With
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Four faint T dwarfs from the UKIRT infrared deep sky surveys (UKIDSS) southern stripe
, 2008 We present the optical and near-infrared photometry and spectroscopy of four faint T dwarfs newly discovered from the UKIDSS first data release. The sample, drawn from an imaged area of ~136 deg2 to a depth of Y = 19.9 (5σ, Vega), is located in the Sloan
Chiu, K +8 more
core +1 more source
Autism Research, EarlyView.ABSTRACT Irritability is a prevalent and impairing feature associated with autism, yet remains poorly understood, particularly in adults. Drawing heavily on insights translated from pediatric and transdiagnostic literatures, we propose that irritability in autistic individuals often reflects a psychophysiological stress or threat response, rooted in a ...
Hsiang‐Yuan Lin +3 more
wiley +1 more source
The Astronomical JournalThe L9 dwarf SDSS J100711.74+193056.2 is situated 7 $\mathop{.}\limits^{^\circ }$ 5 north of the nearest B-type star Regulus ( d = 24.3 ± 0.2 pc), part of a stellar quadruplet.
Eric E. Mamajek, Adam J. Burgasser
doaj +1 more source
Four faint T dwarfs from the UKIRT infrared deep sky survey (UKIDSS) southern stripe
, 2008 We present the optical and near-infrared photometry and spectroscopy of four faint T dwarfs newly discovered from the UKIDSS first data release. The sample, drawn from an imaged area of ∼136 deg2 to a depth of Y = 19.9 (5σ, Vega), is located in the Sloan
Karl Glazebrook (18926938) +8 more
core +1 more source
Motor Disorders in Autism: From Comorbidity to Core Criterion
Autism Research, EarlyView.ABSTRACT While repetitive movements are recognized as a diagnostic hallmark of Autism Spectrum Disorder (ASD) in frameworks such as the DSM and ICD, other motor disturbances, including gait atypicalities and postural control difficulties, have historically been overlooked or framed as secondary comorbidities.
Mohamed Jaber
wiley +1 more source
Detection of Methane in the Closest Extreme Metal-poor T Dwarf WISEA J181006.18−101000.5
The Astrophysical Journal LettersWISEA J181006.18−101000.5 (WISE1810) is the nearest metal-poor ultracool dwarf to the Sun. It has a low effective temperature and has been classified as an extreme early-T subdwarf.
Jerry J.-Y. Zhang +9 more
doaj +1 more source
The Spectra of T Dwarfs. I. Near-Infrared Data and Spectral Classification [PDF]
, 2002 We present near-infrared spectra for a sample of T dwarfs, including 11 new discoveries made using the 2 Micron All Sky Survey. These objects are distinguished from warmer (L-type) brown dwarfs by the presence of methane absorption bands in the 1-2.5 μm ...
Liebert, James +11 more
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Discovery Of Four Field Methane (t-type) Dwarfs With The Two Micron All-sky Survey
, 1999 This is a pre-published version which is collected from arXiv. The published version is at http://iopscience.iop.org/1538-4357/522/1/L65/fulltext.We report the discovery of four field methane ("T"-type) brown dwarfs using Two Micron All-Sky Survey (2MASS)
Dahn, Conard C. +10 more
core +1 more source