Numéro
J. Phys. IV France
Volume 07, Numéro C4, Octobre 1997
XXIIIrd ICPIG
XXIIIrd International Conference on Phenomena in Ionized gases
Page(s) C4-215 - C4-223
DOI https://doi.org/10.1051/jp4:1997417
EUROPEAN SYMPOSIUM ON MARTENSITIC TRANSFORMATION AND SHAPE MEMORY PROPERTIES

J. Phys. IV France 07 (1997) C4-215-C4-223

DOI: 10.1051/jp4:1997417

Interaction of Grains in Dusty Plasmas

A.M. Ignatov

General Physics Institute, 38 Vavilova Str., Moscow 117942, Russia


Abstract
Plasma absorption by dust grains results in anisotropy of plasma distribution function. This yields the effective attractive interaction between grains. Here a brief teview of physical properties of this interaction is given. First we demonstrate that there is the attracting force between two grains obeying the inverse square low. Then a set of kinetic equations taking into account both attracting and repulsing forces is proposed. We study a simple model of a dust cloud consisting of finite number of grains. It is shown that even within gaseous approximation a dust cloud is a compact object with a sharp boundary. Finally, we discuss recent experiments aimed to detecting the attractive force between massive bodies



© EDP Sciences 1997