Title: The pulsational mode in the presence of dust charge fluctuations
Authors: Pandey, BP ×
Vranjes, Jovo
Poedts, Stefaan
Shukla, PK #
Issue Date: 2002
Publisher: Royal swedish acad sciences
Series Title: Physica scripta vol:65 issue:6 pages:513-517
Abstract: The pulsational mode of gravitational collapse of a dusty plasma is studied in the present work. We find that the grain charge fluctuation defines a parameter regime in which pulsational mode of gravitational collapse (PMGC), which is a consequence of the gravito-electrostatic coupling, is permitted, and outside such a parameter regime, usual Jeans mode ensues. Therefore, grain charge fluctuations may play an important role in deciding which of the two modes, namely PMGC or usual Jeans instability of a collapsing cloud will be important. We find that the growth rate of Jeans instability is not very sensitive to the grain charge fluctuations.
ISSN: 0031-8949
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Plasma-astrophysics Section
× corresponding author
# (joint) last author

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