Results 81 to 90 of about 111,392 (348)

BROWN DWARFS: MYSTERY AND SHOW

Odessa Astronomical Publications, 2017
Results of the numerical simulation of the spectrum of the brown dwarf candidate Teide 1 discovered by Rebolo et al. (1995) are discussed.
Ya. V. Pavlenko
doaj   +1 more source

Little Red Dots or Brown Dwarfs? NIRSpec Discovery of Three Distant Brown Dwarfs Masquerading as NIRCam-selected Highly Reddened Active Galactic Nuclei

The Astrophysical Journal Letters, 2023
Cold, substellar objects such as brown dwarfs have long been recognized as contaminants in color-selected samples of active galactic nuclei (AGNs). In particular, their near- to mid-infrared colors (1–5 μ m) can closely resemble the V-shaped ( f _λ ...
Danial Langeroodi, Jens Hjorth
doaj   +1 more source

Addressing Symbolic Versus Substantive Disclosures Under CSRD/ESRS E5 in the Circular Economy Disclosure of the Automotive Industry

Business Strategy and the Environment, EarlyView.
ABSTRACT This study examines how European automotive companies disclose circular economy (CE) information in light of the Corporate Sustainability Reporting Directive (CSRD) and the European Sustainability Reporting Standards (ESRS) E5. Using a mixed‐methods, data‐driven approach that combines keyword analysis and latent Dirichlet allocation (LDA ...
Dominika Hadro, Davide Calandra, Justyna Fijalkowska, Michele Oppioli, Silvana Secinaro   +4 more
wiley   +1 more source

Discovery of two L & T binaries with wide separations and peculiar photometric properties

, 2011
We present spatially resolved photometric and spectroscopic observations of two wide brown dwarf binaries uncovered by the SIMP near-infrared proper motion survey.
Allen, Allers, Artigau, Artigau, Boss, Bowler, Bowler, Burgasser, Burgasser, Burgasser, Burgasser, Burgasser, Burningham, Burrows, Burrows, Chiu, Damien Gratadour, David Lafrenière, Dupuy, Duquennoy, Geballe, Ghez, Jayawardhana, Jonathan Gagné, Kasper, Knapp, Konopacky, Konopacky, Lison Malo, Liu, Liu, Liu, Liu, Liu, Looper, Loïc Albert, Marley, Marley, Maxted, McElwain, McGovern, McLean, Metchev, Metchev, Michael Liu, Mohanty, Monet, Padoan, Padoan, Pravdo, Racine, Reid, Reiners, Reipurth, René Doyon, Salim, Schmidt, Scholz, Skrutskie, Stephens, Trent J. Dupuy, Zacharias, Étienne Artigau   +62 more
core   +2 more sources

Contribution of brown dwarfs and white dwarfs to recent microlensing observations and to the halo mass budget [PDF]

, 1996
We examine the recent results of the MACHO collaboration towards the Large Magellanic Cloud (Alcock et al. 1996) in terms of a halo brown dwarf or white dwarf population.
D. Méra, G. Chabrier, Garcia-Berro E., L. Segretain, Larson R. B., Segretain L., Stevenson D. J., von Hippel T.   +7 more
core   +2 more sources

Transit timing variation analysis of the low-mass brown dwarf KELT-1 b [PDF]

, 2023
Özgür Baştürk, J. Southworth, S. Yalçınkaya, L. Mancini, E. M. Esmer, M. Tekin, F. Tezcan, D. F. Evans, C. T. Tezcan, I. Bruni, C. Yeşilyaprak   +10 more
openalex   +1 more source

“Train and Hope”: The Role of Restorative Justice Coordinators in Sustaining a Culture of Care in Schools

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, Kristina R. Llewellyn, Sandeep Manku, Mackenzie Leclaire   +3 more
wiley   +1 more source

Dust in brown dwarfs [PDF]

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

Environmental and local habitat variables as predictors of trophic interactions in subtidal rocky reefs along the SE Pacific coast

Ecography, EarlyView.
Temperature generally drives latitudinal patterns in the strength of trophic interactions, including consumption rates. However, local community and other environmental conditions might also affect consumption, disrupting latitudinal gradients, which results in complex large‐scale patterns.
Catalina A. Musrri, Alistair G. B. Poore, Oscar Pino, Nicolás Riquelme, Wolfgang B. Stotz, Fadia Tala, Martin Thiel   +6 more
wiley   +1 more source

Constraints to the Masses of Brown Dwarf Candidates from the Lithium Test

, 1994
We present intermediate dispersion (0.7-2.2 \AA ~pix$^{-1}$) optical spectroscopic observations aimed at applying the ``Lithium Test'' to a sample of ten brown dwarf candidates located in the general field, two in young open clusters, and two in close ...
Magazzu, A., Martin, E. L., Rebolo, R.
core   +1 more source