Results 121 to 130 of about 77,477 (148)

Dust Ion–Acoustic Shock Waves in Laboratory, Ionospheric, and Astrophysical Plasmas

Plasma Physics Reports, 2020
T V Losseva, S I Popel, A P Golub'
exaly   +2 more sources

Primary astrophysical dust formation: laboratory desiderata

Planetary and Space Science, 1995
E Sedlmayr
exaly   +2 more sources

CHARGING OF DUST GRAINS IN ASTROPHYSICAL ENVIRONMENTS BY SECONDARY ELECTRON EMISSIONS

Astrophysical Journal, 2012
M M Abbas, D Tankosić, J F Spann
exaly   +2 more sources

Study of the amorphization process of MgSiO3 by ion irradiation as a form of dust processing in astrophysical environments

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2002
Abstract The study of the crystalline-to-amorphous transition of silicates triggered by ion irradiation is useful for the understanding of the structural modification of interstellar dust grains. We focused our experiments on the mineral enstatite (MgSiO3), an essential part of the polycrystalline silicate dust.
F. Schrempel, C. Jäger, D. Fabian, J. Dorschner, Th. Henning, W. Wesch   +5 more
openaire   +1 more source

Dust Formation from Vapor through Multistep Nucleation in Astrophysical Environments

Proceedings of the International Astronomical Union, 2018
Cosmic dust grains are believed to form in outflows in the late stages of evolution of stars such as AGB stars and supernovae. The condensation and crystallization processes are important for understanding the origin of cosmic dusts and have seen by ...
Kyoko K. Tanaka
semanticscholar   +1 more source

High-temperature dust formation in carbon-rich astrophysical environments

Nature Astronomy
Condensation processes, which are responsible for the main chemical differences between gas and solids in the Galaxy, are the major mechanisms that control the cycle of dust from evolved stars to planetary systems.
Guy Libourel, Marwane Mokhtari, V. Rohani, Bernard Bourdon, C. Ganino, E. Lagadec, Philippe Vennéguès, V. Guigoz, F. Cauneau, L. Fulcheri   +9 more
semanticscholar   +1 more source

Is cosmic dust porous?

The Astronomy and Astrophysics Review
There is a long-standing discussion in the astrophysical/astrochemical community as to the structure and morphology of dust grains in various astrophysical environments (e.g., interstellar clouds, protostellar envelopes, protoplanetary and debris disks ...
Alexey Potapov, M. McCoustra, Ryo Tazaki, Edwin A. Bergin, Stefan T. Bromley, R. Garrod, A. Rimola   +6 more
semanticscholar   +1 more source

From small dust to micron-sized aggregates: The influence of structure and composition on the dust optical properties

Astronomy & Astrophysics
Models of astrophysical dust are key to understanding several physical processes, from the role of dust grains as cooling agents in the ism to their evolution in dense circumstellar discs, explaining the occurrence of planetary systems around many stars.
M.-A. Carpine, N. Ysard, A. Maury, A. Jones   +3 more
semanticscholar   +1 more source

Modeling dust dynamics in OpenGadget3. I. SPH implementation of the One-Fluid model

Astronomy & Astrophysics
Dust dynamics plays a critical role in astrophysical processes and has been modeled in hydrodynamical simulations using various approaches. Among particle-based methods like Smoothed Particle Hydrodynamics (SPH), the One-Fluid model has proven to be ...
Giovanni Tedeschi-Prades, Til Birnstiel, K. Dolag, B. Ercolano, Mark Hutchison   +4 more
semanticscholar   +1 more source

Physical properties of clusters relevant for the dust formation process in oxygen-rich astrophysical environments

2003
The formation of small solid particles (dust grains) from the gas phase in the circumstellar environments of evolved stars or the atmospheres of substellar objects (brown dwarfs) requires suitable physical and chemical conditions. The temperature and density of the gas have to be confined to a certain regime, the emph{dust formation window}, in order ...
openaire   +2 more sources