DocumentCode
1490525
Title
Dust-magnetosonic modes in planetary rings
Author
Verheest, Frank ; Hellberg, Manfred A.
Author_Institution
Sterrenkundig Obs., Gent Univ., Belgium
Volume
29
Issue
2
fYear
2001
fDate
4/1/2001 12:00:00 AM
Firstpage
283
Lastpage
287
Abstract
Dust particles on near-Keplerian orbits in planetary rings drift relative to the co-rotating background plasma. Such relative streaming may drive dust-magnetosonic instabilities. Using a magnetofluid model, we revisit this situation, and include the possibility of polydisperse dust. In particular, we show that the growth rate is lower than anticipated from earlier work and that the instabilities cannot occur close to synchronous distance from the planet
Keywords
dusty plasmas; planetary rings; plasma instability; co-rotating background plasma; dust-magnetosonic instabilities; dust-magnetosonic modes; instabilities; magnetofluid model; near-Keplerian orbits; planetary rings; polydisperse dust; synchronous distance; Dusty plasma; Electrons; Frequency; Kinetic theory; Magnetosphere; Orbits; Planets; Plasma properties; Plasma waves; Space technology;
fLanguage
English
Journal_Title
Plasma Science, IEEE Transactions on
Publisher
ieee
ISSN
0093-3813
Type
jour
DOI
10.1109/27.923709
Filename
923709
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