Results 71 to 80 of about 13,165 (147)

Dust Clumping in Outer Protoplanetary Disks: The Interplay among Four Instabilities

open access: yesThe Astrophysical Journal Letters
Dust concentration in protoplanetary disks (PPDs) is the first step toward planetesimal formation, a crucial yet highly uncertain stage in planet formation.
Pinghui Huang, Xue-Ning Bai
doaj   +1 more source

Asian Long-Range Transport in Relation to Atmospheric Rivers in Northern California

open access: yesAtmosphere, 2019
The study investigates the effect of aerosol long-range transport on precipitation over Northern California during atmospheric river (AR) events in the 2017 cold season (January−April). ARs in 2017 were one of the strongest to date, and the intense
Catherine N. Liu   +2 more
doaj   +1 more source

Dust Destruction and Ion Formation in the Inner Solar System

open access: yesThe Astrophysical Journal, 2005
We suggest that dust-dust collisions feed ions into the interplanetary medium and produce a significant amount of the heavy inner-source pickup ions detected by the Solar Wind Ion Composition Spectrometer aboard the Ulysses spacecraft. Organic refractory material contained in the cometary dust could explain the existence of carbon among the measured ...
Ingrid Mann, Andrzej Czechowski
openaire   +1 more source

Near-infrared [P II] and [Fe II] Emission-line Study of Supernova Remnants in the Magellanic Clouds

open access: yesThe Astronomical Journal
We report findings from near-infrared imaging observations of 17 young and middle-aged supernova remnants (SNRs) in the Magellanic Clouds to examine the impact of SNR shocks on dust destruction and the possible detection of supernova ejecta.
Rommy L. S. E. Aliste Castillo   +6 more
doaj   +1 more source

Normal high velocity solid dust impacts on tiles of tokamak-relevant temperature

open access: yesNuclear Materials and Energy
Runaway electron incidence on plasma facing components triggers explosive events that are accompanied by the expulsion of fast solid debris. Subsequent dust-wall high speed impacts constitute a mechanism of wall damage and dust destruction.
Marco De Angeli   +9 more
doaj   +1 more source

Extreme-ultraviolet Photochemistry in Water-covered Carbonaceous Dust Analogs: Effects of Dust Thickness and Hydrogen Content

open access: yesThe Astrophysical Journal
Carbonaceous grains, as an abundant interstellar dust material, persist through several stages of the interstellar medium, providing a surface for gas-phase species condensation and chemical reactions.
C.-Y. Lee   +5 more
doaj   +1 more source

Tracing the History of Obscured Star Formation with the SIMBA Cosmological Galaxy Evolution Simulation

open access: yesThe Astrophysical Journal
We explore the cosmic evolution of the fraction of dust-obscured star formation predicted by the simba cosmological hydrodynamic simulations featuring an on-the-fly model for dust formation, evolution, and destruction.
Dhruv T. Zimmerman   +3 more
doaj   +1 more source

Missing dust of super-early galaxies

open access: yesAstronomy & Astrophysics
Context. A subset of very young super-early galaxies at z ≳ 10, often called blue monsters, shows extremely blue UV continua and faint far-IR emission. This might imply much less dust than expected from standard enrichment scenarios. Aims.
Martínez-González Sergio   +2 more
doaj   +1 more source

Modeling Dust Production, Growth, and Destruction in Reionization-era Galaxies with the CROC Simulations. II. Predicting the Dust Content of High-redshift Galaxies

open access: yesThe Astrophysical Journal
We model the interstellar dust content of the reionization era with a suite of cosmological, fluid-dynamical simulations of galaxies with stellar masses ranging from ∼10 ^5 to 10 ^9 M _⊙ in the first 1.2 Gyr of the Universe.
Clarke J. Esmerian, Nickolay Y. Gnedin
doaj   +1 more source

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