Results 81 to 90 of about 51,136 (327)
Gravitational fragmentation and the formation of brown dwarfs in stellar clusters [PDF]
, 2008 We investigate the formation of brown dwarfs and very low-mass stars through the gravitational fragmentation of infalling gas into stellar clusters. The gravitational potential of a forming stellar cluster provides the focus that attracts gas from the ...
Bate +34 more
core +2 more sources
The Astrophysical Journal LettersWe present JWST/Mid Infrared Instrument (MIRI) low-resolution spectroscopy (4.75–14 μ m) of the first known substellar companion, Gliese 229Bab, which was recently resolved into a tight binary brown dwarf.
Jerry W. Xuan +10 more
doaj +1 more source
Dark Sides of Digital Asset Consumption and Consumer Well‐Being: Impact of Psychological Ownership
Journal of Consumer Behaviour, EarlyView.ABSTRACT This research contributes to the literature on consumer digital asset consumption by developing a novel model that examines the effects of psychological ownership on two dark‐side consumption behaviors: digital hoarding and digital piracy. It further examines how these behaviors influence consumer psychological outcomes, specifically, anxiety ...
Mateja Kos Koklic +2 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
Brown dwarfs as Galactic chronometers [PDF]
Proceedings of the International Astronomical Union, 2008 AbstractBrown dwarfs are natural clocks, cooling and dimming over time due to insufficient core fusion. They are also numerous and present in nearly all Galactic environments, making them potentially useful chronometers for a variety of Galactic studies.
openaire +3 more sources
The Versatility of Diazirines: Properties, Synthetic and Modern Applications
Chemistry – A European Journal, EarlyView.Diazirines are 3‐membered heterocycles containing two nitrogen atoms connected by a double bond. They possess a multi‐faceted reactivity that holds great potential for organic synthesis. This review discusses their properties, modes of activation, and their many modern uses, underlining their underappreciated versatility: as carbene precursors, but ...
Mathieu L. Lepage, Emmanuel Gras
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
Habitability in Brown Dwarf Systems [PDF]
, 2017 Chapter accepted for the Handbook of Exoplanets in Section "Where Life May Arise: Habitability".
openaire +3 more sources
Corporate Social Responsibility and Environmental Management, EarlyView.ABSTRACT This study explores how environmental, social, and governance (ESG) performance‐based peer pressure influences corporate resilience, with a focus on the moderating effects of firm‐perceived economic policy uncertainty (FEPU) and governance efficiency (GE).
Han Lu +2 more
wiley +1 more source
The brown dwarf population in the Chamaeleon I cloud [PDF]
, 2003 We present the results of a multiband survey for brown dwarfs in the Chamaeleon I dark cloud with the Wide Field Imager (WFI) camera at the ESO/MPG 2.2-m telescope on La Silla (Chile).
A. Scholz +80 more
core +3 more sources