Results 91 to 100 of about 111,392 (348)

The Initial Mass Function Based on the Full-sky 20 pc Census of ∼3600 Stars and Brown Dwarfs

open access: yesThe Astrophysical Journal Supplement Series
A complete accounting of nearby objects—from the highest-mass white dwarf progenitors down to low-mass brown dwarfs—is now possible, thanks to an almost complete set of trigonometric parallax determinations from Gaia, ground-based surveys, and Spitzer ...
J. Davy Kirkpatrick   +85 more
doaj   +1 more source

A Clear View of a Cloudy Brown Dwarf Companion from High-resolution Spectroscopy [PDF]

open access: gold, 2022
Jerry W. Xuan   +39 more
openalex   +1 more source

Modeling Brown Dwarfs, L Dwarfs, and T Dwarfs [PDF]

open access: yesSymposium - 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

Brown Dwarf Companions to Solar-Type Stars and other Brown Dwarfs [PDF]

open access: yesSymposium - International Astronomical Union, 2004
We report on our ongoing imaging efforts to detect brown dwarfs orbiting solar-type stars and other brown dwarfs. We study the properties of brown dwarf companions as a function of primary mass. Our results indicate that the frequency of brown dwarf companions around solar-type stars for separations larger than about 40 AU is non-negligible.
Eduardo L. Martín   +3 more
openaire   +1 more source

Matching your way to Success: The Influence of Motivational Frame Matching on Interaction Outcomes and Reciprocal Matching

open access: yesEuropean Journal of Social Psychology, EarlyView.
ABSTRACT Theories of interpersonal sensemaking postulate that positive interactions emerge in interactions where speakers match on motivational frames. Across three experiments (N = 1609) using a hypothetical simulation framework, we provide the first evidence of a causal link between motivational frame matching and positive interaction outcomes in ...
Mattias Sjöberg   +2 more
wiley   +1 more source

Expect the unexpected: non-equilibrium processes in brown dwarf atmospheres [PDF]

open access: yes, 2014
Brown Dwarf atmosphere are a chemically extremely rich, one example being the formation of clouds driven by the phase-non-equilibrium of the atmospheric gas.
Helling, Christiane
core   +1 more source

Main-oval Auroral Emission from a T6 Brown Dwarf: Observations, Modeling, and Astrometry

open access: yesThe Astrophysical Journal
From a series of 5 GHz Very Long Baseline Array (VLBA) radio observations taken over a 1 yr span, we present the detection of compact, highly polarized radio emission from the T6 brown dwarf WISE J112254.72+255022.2, compatible with electron cyclotron ...
J. C. Guirado   +5 more
doaj   +1 more source

STUDIES ON HOST PREFERENCE OF PARASA LEPIDA ON SOME CULTIVARS OF HYBRID COCONUT IN SWAMPY AREA

open access: yesCORD, 1994
A two‑month f ield experiment to study host preference of the leaf‑eating cater­pillar, Parasa lepida cramer, on 5 cultivars of hybrid coconut: Green Khina‑1, Brown Khina‑1, Nias Yellow Dwarf (NYD) x West African Tall (WAT),.
Wily A. Baringbing, Bariyah Baringbing
doaj   +1 more source

Composition and Functional Properties of Tender Coconut Water: Effect of Variety and Maturity Stage

open access: yesFuture Postharvest and Food, EarlyView.
The study highlights the effect of coconut variety and maturity stage on tender coconut water's composition and functional properties. Sugars, enzyme activities, antioxidant levels, mineral profile, and flavor profile vary across stages, affecting quality.
Raja Vijayakumar   +6 more
wiley   +1 more source

Carbon‐based materials from renewable sources: Challenges and perspectives with a focus on green coconut

open access: yesJournal of Chemical Technology &Biotechnology, EarlyView.
Abstract This article presents a comprehensive examination of agricultural production, biomass generation, and its transformation into biochar, with a particular emphasis on green coconut waste as a primary resource. It underscores the link between agriculture and substantial biomass output, shedding light on the ecological issues associated with solid
Yslaine Andrade de Almeida   +4 more
wiley   +1 more source

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