Results 41 to 50 of about 2,970 (266)
Brown dwarf spectra offer vital testbeds for our understanding of the chemical and physical processes that sculpt substellar atmospheres. Recently, atmospheric retrieval approaches have been successfully applied to low-resolution ( R ∼ 100) spectra of L,
Callie E. Hood +3 more
doaj +1 more source
ABSTRACT Gliomas have undergone a profound redefinition over the past decade, transitioning from morphology‐based entities to biologically coherent diseases defined by molecular alterations. The 2021 WHO Classification of Tumors of the Central Nervous System and its 2022 update formalize this shift, establishing integrated diagnosis as the global ...
Maria Guarnaccia, Sebastiano Cavallaro
wiley +1 more source
Extending the Canada-France Brown Dwarf Survey to the near infrared
We present the first results of the Canada-France Brown Dwarfs Survey-InfraRed, hereafter CFBDSIR, our near infrared extension to the optical wide field survey CFBDS.
Bertin E. +8 more
doaj +1 more source
Constraining the Distribution of L and T Dwarfs in the Galaxy
We estimate the thin disk scale height of the Galactic population of L- & T-dwarfs based on star counts from 15 deep parallel fields from the Hubble Space Telescope. From these observations, we have identified 28 candidate L- & T- dwarfs based on their (i'-z') color and morphology.
Ryan Jr., Russell E. +3 more
openaire +2 more sources
The 2MASS Wide-Field T Dwarf Search. V. Discovery of a T Dwarf via Methane Imaging [PDF]
Accepted for publication in AJ.
Ellis, SC +4 more
openaire +3 more sources
Immune Checkpoint Inhibitor–Related Myositis and Associated Triad Overlap Syndrome
Objective Immune checkpoint inhibitor (ICI) myositis is a rare but a highly morbid condition, particularly with the ICI myositis triad syndrome of myositis, myocarditis, and myasthenia gravis. We report the clinical characteristics of ICI myositis and all‐cause mortality in these patients.
Selene Rubino +9 more
wiley +1 more source
Exploration of the Near-infrared Colors of Cold Y Dwarfs from the Ground and Space
The James Webb Space Telescope (JWST) has provided critical mid-infrared data for cold brown dwarfs. It has also provided low-resolution near-infrared spectra, and for faint sources these are the first spectra at these wavelengths.
S. K. Leggett +2 more
doaj +1 more source
Infrared Photometry of Late‐M, L, and T Dwarfs [PDF]
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 +18 more
openaire +3 more sources
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee +7 more
wiley +1 more source
Gray Spectral Variability in Three Brown Dwarfs Observed by HST/WFC3 Time-series Observations
The L/T transition is a critical evolutionary stage for brown dwarfs and self-luminous giant planets. L/T transition brown dwarfs are more likely to be spectroscopically variable, and their high-amplitude variability probes distributions in their clouds ...
Madalyn F. Chapleski, Yifan Zhou
doaj +1 more source

