Acceleration of Small Astrophysical Grains due to Charge Fluctuations

We discuss a novel mechanism of dust acceleration which may dominate for particles smaller than ~0.1 Delta *mm. The acceleration is caused by their direct electrostatic interactions arising from fluctuations of grain charges. The energy sources for the acceleration are the irreversible plasma proces...

Full description

Saved in:
Bibliographic Details
Published in:The Astrophysical journal 2010-11, Vol.723 (1), p.612-619
Main Authors: Ivlev, A. V, Lazarian, A, Tsytovich, V. N, de Angelis, U, Hoang, Thiem, Morfill, G. E
Format: Article
Language:English
Subjects:
ACCELERATION
ASTROPHYSICS
ASTROPHYSICS, COSMOLOGY AND ASTRONOMY
DUSTS
FLUCTUATIONS
INTERSTELLAR GRAINS
PARTICLES
PHYSICS
VARIATIONS
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We discuss a novel mechanism of dust acceleration which may dominate for particles smaller than ~0.1 Delta *mm. The acceleration is caused by their direct electrostatic interactions arising from fluctuations of grain charges. The energy sources for the acceleration are the irreversible plasma processes occurring on the grain surfaces. We show that this mechanism of charge-fluctuation-induced acceleration likely affects the rate of grain coagulation and shattering of the population of small grains.
ISSN:0004-637X
1538-4357
DOI:10.1088/0004-637X/723/1/612