Results 21 to 30 of about 4,499,156 (300)

Dust formation and evolution in the ejecta of core-collapse supernovae [PDF]

open access: yes, 2015
Observations of local supernovae over the past couple of decades have reported the presence of dust in the ejecta. The dust masses inferred from observations in mid-infrared and submillimeter wavelengths differ by a factor of 10^2 to 10^4 The composition
Sarangi, Arkaprabha
core   +1 more source

A Potential Site for Wide-orbit Giant Planet Formation in the IM Lup Disk

open access: yesThe Astrophysical Journal Letters, 2023
The radial transport, or drift, of dust has taken a critical role in giant planet formation theory. However, it has been challenging to identify dust drift pileups in the hard-to-observe inner disk. We find that the IM Lup disk shows evidence that it has
Arthur D. Bosman   +4 more
doaj   +1 more source

The feasibility of using an L1 positioned dust cloud as a method of space-based geoengineering [PDF]

open access: yes, 2012
In this paper a method of geoengineering is proposed involving clouds of dust placed in the vicinity of the L1 point as an alternative to the use of thin film reflectors.
Bewick, Russell   +2 more
core   +3 more sources

The Astrodust+PAH Model: A Unified Description of the Extinction, Emission, and Polarization from Dust in the Diffuse Interstellar Medium

open access: yesThe Astrophysical Journal, 2023
We present a new model of interstellar dust in which large grains are a single composite material, “astrodust,” and nanoparticle-sized grains come in distinct varieties including polycyclic aromatic hydrocarbons (PAHs). We argue that a single-composition
Brandon S. Hensley, B. T. Draine
doaj   +1 more source

Dust emission in powder handling: Free falling particle plume characterisation [PDF]

open access: yes, 2009
Dust generation during solids handling, principally from the free falling of bulk materials and their impact on stockpiles, can be a health threat for operators and a cause of dust explosions.
Ansart, Renaud   +5 more
core   +1 more source

AGB Winds with Gas-Dust Drift in Stellar Evolution Codes

open access: yesUniverse, 2021
A significant fraction of new metals produced in stars enter the interstellar medium in the form of dust grains. Including dust and wind formation in stellar evolution models of late-stage low- and intermediate-mass stars provides a way to quantify their
Lars Mattsson, Christer Sandin
doaj   +1 more source

Dust emission by powder handling: Influence of the hopper outlet on the dust plume [PDF]

open access: yes, 2011
Dust generation in solids handling involving free fall of bulk materials and impacts on a stockpile can cause many problems in industry and be a great danger for operators health. This paper describes an experimental set up to characterize the dust plume
Letourneau, Jean-Jacques   +8 more
core   +1 more source

Dust to Dust: Evidence for Planet Formation?

open access: yes, 2001
8 pages, 3 figures, Conf. Proc.
Schneider, G.   +5 more
openaire   +2 more sources

Dust Formation in Astrophysical Environments: The Importance of Kinetics

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Astronomical observations and analysis of stardust isolated from meteorites have revealed a highly diverse interstellar and circumstellar grain inventory, including a wide range of amorphous materials and crystalline compounds (silicates and carbon). This diversity reflects the wide range of stellar sources injecting solids into the interstellar medium
A.G.G.M. Tielens, A.G.G.M. Tielens
openaire   +4 more sources

Numerical simulation computational zone during dust loading (1) formation of dust cake during dust loading (2) computational domain.

open access: yes, 2023
Numerical simulation computational zone during dust loading (1) formation of dust cake during dust loading (2) computational domain.
Guoqing Shi (5661274)   +3 more
core   +1 more source

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