Results 91 to 100 of about 51,136 (327)
The Astrophysical JournalIrradiated brown dwarfs offer a unique opportunity to bridge the gap between stellar and planetary atmospheres. We present high-quality Hubble Space Telescope/Wide Field Camera 3/G141 phase-resolved spectra of the white dwarf–brown dwarf binary GD 1400 ...
Rachael C. Amaro +10 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
JWST/NIRCam Discovery of the First Y+Y Brown Dwarf Binary: WISE J033605.05–014350.4
The Astrophysical Journal Letters, 2023 We report the discovery of the first brown dwarf binary system with a Y dwarf primary, WISE J033605.05−014350.4, observed with NIRCam on JWST with the F150W and F480M filters.
Per Calissendorff +27 more
doaj +1 more source
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
A Possible Correlation between Metallicity and Near-IR Color for Late-M and L Dwarfs
The Astrophysical JournalWe examine the relationship between metallicity and J − K color for 64 benchmark late-M and L dwarfs, all of which are wide companions to higher-mass stars, and six of which are new discoveries.
Ruihan Zhang +2 more
doaj +1 more source
Self-consistent Models of Y Dwarf Atmospheres with Water Clouds and Disequilibrium Chemistry
The Astrophysical Journal, 2023 Y dwarfs are the coolest spectral class of brown dwarf. They have effective temperatures less than 500 K, with the coolest detection as low as ∼250 K.
Brianna Lacy, Adam Burrows
doaj +1 more source
arXiv: Astrophysics, 2005 The formation of objects below or close to the hydrogen burning limit is currently vividly discussed and is one of the main open issues in the field of the origins of stars and planets. Applying various observational techniques, we explored a sample of brown dwarfs and very low-mass stars in the ChaI star forming cloud at an age of only a few million ...
openaire +3 more sources
Brown Dwarf Formation: Theory [PDF]
, 2018 We rehearse the physical and theoretical considerations that define the nature of Brown Dwarfs, in particular the maximum mass for a Brown Dwarf (set by the Hydrogen-Burning Limit) and the minimum mass for a Brown Dwarf (set by the Opacity Limit). We then review the range of mechanisms that have been invoked to explain the formation of Brown Dwarfs and
openaire +3 more sources
Environmental Policy and Governance, EarlyView.ABSTRACT Social science inquiry into environmental governance is theoretically and methodologically diverse, resulting in a large array of isolated pieces of knowledge. Scholars' reflections around knowledge cumulation focus on how separate bits of knowledge can feasibly be integrated to build a broader, consensual state of knowledge.
Laure Gosselin, Mathilde Gauquelin
wiley +1 more source
Detection of lithium in nearby young late-M dwarfs
, 2016 Late M-type dwarfs in the solar neighborhood include a mixture of very low-mass stars and brown dwarfs which is difficult to disentangle due to the lack of constraints on their age such as trigonometric parallax, lithium detection and space velocity ...
Bessell, M. S. +6 more
core +1 more source