Results 21 to 30 of about 243,837 (300)

Effects of Barnett Magnetic Dipole–Dipole Interaction on Grain Growth and Destruction

open access: yesThe Astrophysical Journal, 2023
Rapidly spinning magnetic grains can acquire large magnetic dipole moments due to the Barnett effect. Here we study the new effect of Barnett magnetic dipole–dipole interaction on grain–grain collisions and grain growth, assuming that grains are spun up ...
Thiem Hoang, Bao Truong
doaj   +1 more source

Physical Processes on Circumplanetary Dust [PDF]

open access: yesInternational Astronomical Union Colloquium, 1991
Abstract The life cycles of grains in circumplanetary space are governed by various physical processes that alter sizes and modify orbits. Lifetimes are quite short, perhaps 102-104 years for typical circumplanetary grains of 1 micron radius. Thus particles must be continually supplied to the circumplanetary complex, probably by the grinding down of
openaire   +1 more source

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

Physical Modeling of the Zodiacal Dust Cloud [PDF]

open access: yesSymposium - International Astronomical Union, 2001
This review is based on extensive work done in collaboration with N. Gorkavyi, J. Mather, and T. Taidakova, which aimed at physical modeling of the interplanetary dust (IPD) cloud in the Solar System, i.e., establishing a link between the observable characteristics of the zodiacal cloud and the dynamical and physical properties of the parent minor ...
openaire   +2 more sources

Investigation of Dust Grains by Optical Tweezers for Space Applications

open access: yesThe Astrophysical Journal, 2022
Cosmic dust plays a dominant role in the universe, especially in the formation of stars and planetary systems. Furthermore, the surface of cosmic dust grains is the benchwork where molecular hydrogen and simple organic compounds are formed. We manipulate
A. Magazzù   +13 more
doaj   +1 more source

A review of nanoparticle decharging in atmospheric pressure plasma afterglows

open access: yesFrontiers in Physics, 2022
Plasma afterglows interacting with dust grains present a dynamic environment in which negatively charged dust grains leaving the plasma bulk experience an environment with plasma conditions transient in space and time.
T.J.A. Staps , T.J.A. Staps 
doaj   +1 more source

Orbital-motion-limited theory of dust charging and plasma response

open access: yes, 2014
The foundational theory for dusty plasmas is the dust charging theory that provides the dust potential and charge arising from the dust interaction with a plasma.
Delzanno, Gian Luca, Tang, Xian-Zhu
core   +1 more source

Analytical study of (3 + 1)-dimensional fractional ultralow-frequency dust acoustic waves in a dual-temperature plasma

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2019
Ultralow-frequency dust acoustic waves in plasma are an important branch of study in plasma physics. Due to the important application of dust acoustic waves in the space environment, industrial processing, and the laboratory, they have aroused great ...
Junchao Sun, Lei Fu, Hongwei Yang
doaj   +1 more source

Depletion patterns and dust evolution in the ISM [PDF]

open access: yes, 1999
We review the use of elemental depletions in determining the composition of interstellar dust and present a new interpretation of the elemental depletion patterns for the dust forming elements in a range of diffuse cloud types. We discuss this within the
Jones, A. P.
core   +3 more sources

On Dust Charging Equation

open access: yes, 2008
A general derivation of the charging equation of a dust grain is presented, and indicated where and when it can be used. A problem of linear fluctuations of charges on the surface of the dust grain is discussed.Comment: Invited Talk National Symposium on
Tsintsadze, Levan N.   +1 more
core   +1 more source

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