Results 61 to 70 of about 5,171 (308)

Physical Characterization of Brown Dwarfs

open access: yes, 2015
The initial mass function describes the distribution of masses for a population of stars and substellar objects when they are born. It defines the evolution of a population of stars and provides constrains on the star formation theory.
Manjavacas, Elena
core   +1 more source

Sustainable Development Goals' Discourse in the Accounting and Business Literature: A Rhetorical Lens

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT The role of academia in shaping the Sustainable Development Goals (SDGs) remains insufficiently understood. This study examines how SDG discourse is constructed within accounting and business research by integrating bibliometric analysis with a systematic review of 731 peer‐reviewed articles published between 2020 and 2024.
Silvia Panfilo   +2 more
wiley   +1 more source

A New Spectral Class of Brown Dwarfs at the Bottom of the IMF in IC 348

open access: yesThe Astrophysical Journal Letters
In a previous study, we used James Webb Space Telescope (JWST) to identify three new brown dwarfs in the center of a nearby star-forming cluster, IC 348.
K. L. Luhman, C. Alves de Oliveira
doaj   +1 more source

Dust in brown dwarfs [PDF]

open access: yesAstronomy & Astrophysics, 2003
In this paper, we quantify and discuss the physical and surface chemical processes leading to the formation, temporal evolution and sedimentation of dust grains in brown dwarf and giant gas planet atmospheres: nucleation, growth, evaporation and gravitational settling.
P. Woitke, Ch. Helling
openaire   +1 more source

Do CSR Efforts Reduce Environmental Decoupling: Evidence From S&P 500 Firms

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This study investigates the impact of Corporate Social Responsibility (CSR) committees and CSR‐focused employee training on environmental decoupling. Using panel data of 2489 firm‐year observations from S&P 500 firms between 2009 and 2022, we employ fixed‐effects models to examine how CSR governance mechanisms influence the alignment between ...
Burcu Gürol   +2 more
wiley   +1 more source

Little Red Dots or Brown Dwarfs? NIRSpec Discovery of Three Distant Brown Dwarfs Masquerading as NIRCam-selected Highly Reddened Active Galactic Nuclei

open access: yesThe Astrophysical Journal Letters, 2023
Cold, substellar objects such as brown dwarfs have long been recognized as contaminants in color-selected samples of active galactic nuclei (AGNs). In particular, their near- to mid-infrared colors (1–5 μ m) can closely resemble the V-shaped ( f _λ ...
Danial Langeroodi, Jens Hjorth
doaj   +1 more source

GROWTH OF GRAINS IN BROWN DWARF DISKS [PDF]

open access: yesThe Astrophysical Journal, 2013
6 pages, 4 figures, accepted by ...
Meru, Farzana   +2 more
openaire   +2 more sources

Speaking About Artificial Intelligence for Sustainability—How Employees’ Perception of Credibility Shapes Their Initial Attitudes Toward AI Adoption

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Companies increasingly claim to adopt artificial intelligence (AI) not only for economic but also for ecological and social purposes. However, in light of rising greenwashing, bluewashing, and ethics washing, the impact of the communicated rationale on employees' initial attitude toward AI introduction remains unclear.
Marco Baumgartner   +3 more
wiley   +1 more source

A Smooth Transition from Giant Planets to Brown Dwarfs from the Radial Occurrence Distribution

open access: yesThe Astronomical Journal
Measuring the occurrence rates of celestial objects is a valuable way to study their origins and evolution. Giant planets and brown dwarfs produce large Doppler signatures that are easily detectable by modern instrumentation, and legacy radial velocity ...
Judah Van Zandt   +5 more
doaj   +1 more source

Brown dwarfs forming in discs: Where to look for them?

open access: yesEPJ Web of Conferences, 2011
A large fraction of the observed brown dwarfs may form by gravitational fragmentation of unstable discs. This model reproduces the brown dwarf desert, and provides an explanation for the existence of planetary-mass objects and for the binary properties ...
Stamatellos D., Whitworth A.
doaj   +1 more source

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