Results 101 to 110 of about 111,632 (351)

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

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

open access: yesEcography, 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   +6 more
wiley   +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

The Trigonometric Parallax of the Brown Dwarf Planetary System 2MASSW J1207334-393254

open access: yes, 2007
We have measured a trigonometric parallax to the young brown dwarf 2MASSW J1207334-393254. The distance [54.0 (+3.2,-2.8) pc] and space motion confirm membership in the TW Hydrae Association. The primary is a ~25 M_jup brown dwarf.
John E. Gizis   +4 more
core   +1 more source

Alpine ungulates adjust diel activity to the natural return of wolves amid anthropogenic pressures

open access: yesEcography, EarlyView.
As wolves recolonise their historical range across Europe, ungulates face predation once more – but in landscapes profoundly altered by human activity. This shift raises crucial questions about their capacity to express adaptive antipredator behaviours.
Charlotte Vanderlocht   +20 more
wiley   +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

Spitzer Infrared Spectrograph Observations of M, L, and T Dwarfs

open access: yes, 2004
We present the first mid-infrared spectra of brown dwarfs, together with observations of a low-mass star. Our targets are the M3.5 dwarf GJ 1001A, the L8 dwarf DENIS-P J0255-4700, and the T1/T6 binary system epsilon Indi Ba/Bb.
Amy K. Mainzer   +12 more
core   +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

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