EXPANSION OF A DUSTY PLASMA INTO A VACUUM - EFFECTS OF CHARGE NONNEUTRALITY

Authors
ELZEIN Y YI SJ LONNGREN KE
Citation
Y. Elzein et al., EXPANSION OF A DUSTY PLASMA INTO A VACUUM - EFFECTS OF CHARGE NONNEUTRALITY, Planetary and space science, 45(2), 1997, pp. 251-254
Citations number
14
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Planetary and space science → ACNP
ISSN journal
00320633
Volume
45
Issue
2
Year of publication
1997
Pages
251 - 254
Database
ISI
SICI code
0032-0633(1997)45:2<251:EOADPI>2.0.ZU;2-P
Abstract
The nonlinear expansion of a dusty plasma into a vacuum region is inve stigated without imposing a quasi-neutrality assumption. The nonlinear expansion is obtained using numerical methods. Electrons and positive ions are found to initially escape into the vacuum region creating an electric field that accelerates a small group of massive dust particl es into the vacuum ahead of the dust expansion. (C) 1997 Elsevier Scie nce Ltd.