Volume 401, Number 3, April III 2003
|Page(s)||849 - 850|
|Published online||01 April 2003|
Research Note Dust Alfvén envelope solitons in astrophysical dusty plasmas
Institut für Theoretische Physik IV, Ruhr–Universität Bochum, 44780 Bochum, Germany
2 Sterrenkundig Observatorium, Universiteit Gent, Krijgslaan 281, 9000 Gent, Belgium
Corresponding author: P. K. Shukla, firstname.lastname@example.org
Accepted: 13 February 2003
It is shown that nonlinear dynamics of modulated dust Alfvén wave packets is governed by a derivative nonlinear Schrödinger equation. The latter admits localized envelope solitons whose width L is larger than , where VA is the dust Alfvén speed and the dust gyrofrequency. For dusty plasma parameters relevant to molecular clouds in interstellar space, the soliton width is of the order of a fraction of a parsec.
Key words: plasmas / waves / ISM: clouds
© ESO, 2003
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.