Results 71 to 80 of about 48,990 (297)
Intercomparison of Brown Dwarf Model Grids and Atmospheric Retrieval Using Machine Learning
The Astrophysical Journal, 2023 Understanding differences between substellar spectral data and models has proven to be a major challenge, especially for self-consistent model grids that are necessary for a thorough investigation of brown dwarf atmospheres.
Anna Lueber +6 more
doaj +1 more source
HST Spectral Mapping of L/T Transition Brown Dwarfs Reveals Cloud Thickness Variations
, 2013 Most directly imaged giant exoplanets are fainter than brown dwarfs with similar spectra. To explain their relative underluminosity unusually cloudy atmospheres have been proposed.
Apai, Daniel +5 more
core +1 more source
The Galactic disk mass function: reconciliation of the HST and nearby determinations [PDF]
, 2003 We derive and parametrize the Galactic mass function (MF) below 1 $\msol$ characteristic of both single objects and binary systems. We resolve the long standing discrepancy between the MFs derived from the HST and from the nearby luminosity functions ...
Baraffe I. +7 more
core +4 more sources
Functionalizing Conductive Diamond: Recent Advance in Fabrication, Modifications, and Applications
Carbon Energy, EarlyView.This review highlights recent advancements in the synthesis, modification, and electrochemical applications of conductive diamond, particularly boron‐doped diamond (BDD). It emphasizes progress in fabrication methods, including CVD and HPHT, and explores modifications such as doping, surface terminations, and composite design, enabling significant ...
Ning Linghu, Xin Jiang, Jing Xu
wiley +1 more source
DEPLETION OF TiO AND SPECTRA OF THE COOLEST BROWN DWARFS
Odessa Astronomical Publications, 2017 This study was performed in the context of the ”lithium test” for brown dwarfs proposed by Rebolo et al. (1992). We consider the formation of lithium dust species in atmospheres of the coolest stars and substellar objects.
Ya. V. Pavlenko
doaj +1 more source
Latest news on the Physics of Brown dwarfs
, 2013 The physics of brown dwarfs has continuously improved since the discovery of these astrophysical bodies. The first important developments were devoted to the description of their mechanical structure, with the derivation of an appropriate equation of ...
Baraffe, Isabelle
core +1 more source
Astronomy & Astrophysics, 2003 In this paper, we quantify and discuss the physical and surface chemical processes leading to the formation, temporal evolution and sedimentation of dust grains in brown dwarf and giant gas planet atmospheres: nucleation, growth, evaporation and gravitational settling.
P. Woitke, Ch. Helling
openaire +1 more source
Conflict Resolution Quarterly, EarlyView.ABSTRACT This article examines the role of restorative justice coordinators in supporting teachers and schools in adopting a whole‐school approach to restorative justice in education. Coordinators are often tasked with implementing a train‐and‐hope model, in which they receive initial training in restorative justice but are largely left unsupported ...
Crystena Parker‐Shandal +3 more
wiley +1 more source
Mid-infrared followup of cold brown dwarfs: Diversity in age, mass and metallicity
EPJ Web of Conferences, 2011 We use Spitzer IRAC 3.6–8.0 μm photometry of late-type T dwarfs to investigate various trends which can aid the planning and interpretation of infrared (IR) surveys for the coldest T or Y dwarfs. Brown dwarfs with effective temperature (Teff)50% of their
Pinfield D.J. +7 more
doaj +1 more source
Modeling Brown Dwarfs, L Dwarfs, and T Dwarfs [PDF]
Symposium - International Astronomical Union, 2003 In this contribution, I review a subset of our recent efforts in spectral and opacity modeling aimed at guiding the study of brown dwarfs, L dwarfs, and T dwarfs. I discuss theoretical calculations of the alkali line profiles, newly generated CrH opacities, new evidence for refractory rainout in T dwarfs from optical spectral measurements, and the ...
openaire +2 more sources