Results 71 to 80 of about 53,034 (302)
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 +6 more
wiley +1 more source
TOI-1994b: A Low-mass Eccentric Brown Dwarf Transiting A Subgiant Star
The Astronomical JournalWe present the discovery of TOI-1994b, a low-mass brown dwarf transiting a hot subgiant star on a moderately eccentric orbit. TOI-1994 has an effective temperature of ${7700}_{-410}^{+720}$ K, V magnitude of 10.51 mag and log( g ) of ${3.982}_{-0.065 ...
Emma Page +25 more
doaj +1 more source
Substellar Companions to Main Sequence Stars: No Brown Dwarf Desert at Wide Separations
, 2001 We use three field L and T dwarfs which were discovered to be wide companions to known stars by the Two Micron All-Sky Survey (2MASS) to derive a preliminary brown dwarf companion frequency.
Adam Burgasser +10 more
core +2 more sources
Alpine ungulates adjust diel activity to the natural return of wolves amid anthropogenic pressures
Ecography, 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
UNCOVER: JWST Spectroscopy of Three Cold Brown Dwarfs at Kiloparsec-scale Distances
The Astrophysical JournalWe report JWST/NIRSpec spectra of three distant T-type brown dwarfs identified in the Ultradeep NIRSpec and NIRCam ObserVations before the Epoch of Reionization (UNCOVER) survey of the Abell 2744 lensing field.
Adam J. Burgasser +21 more
doaj +1 more source
PPV Chapter - The Formation of Brown Dwarfs
, 2006 We review five mechanisms for forming brown dwarfs: (i) turbulent fragmentation of molecular clouds, producing very low-mass prestellar cores by shock compression; (ii) collapse and fragmentation of more massive prestellar cores; (iii) disc fragmentation;
Bate, Matthew R. +4 more
core
The 2MASS Wide-Field T Dwarf Search. IV Unting out T dwarfs with Methane Imaging
, 2005 We present first results from a major program of methane filter photometry for low-mass stars and brown dwarfs. The definition of a new methane filter photometric system is described.
Adam J. Burgasser +8 more
core +1 more source
European 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
A Small Brown Dwarf in an Aligned Orbit Around a Young, Fully Convective M Star
The Astronomical JournalA star's spin–orbit angle can give us insight into a system's formation and dynamical history. In this paper, we use MAROON-X observations of the Rossiter–McLaughlin effect to measure the projected obliquity of the LP 261-75 (also known as TOI-1779 ...
Madison Brady +8 more
doaj +1 more source
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