DOI: https://doi.org/10.30970/jps.02.483
THE EXCITATION OF ELECTROSTATIC WAVES IN DUSTY SELF-GRAVITATIONAL PLASMA BY MOVING PARTICLES
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Journal of Physical Studies 2(4), 483–489 (1998)
DOI: https://doi.org/10.30970/jps.02.483 THE EXCITATION OF ELECTROSTATIC WAVES IN DUSTY SELF-GRAVITATIONAL PLASMA BY MOVING PARTICLES |
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V. Yaroshenko
Institute of Radio Astronomy, Ukrainian Academy of Sciences
4 Chervonopraporna Str., Kharkiv, UA–310002, Ukraine
Some electrodynamic effects connected with the motion of dust grains in self–gravitational plasma are considered. The investigation of energy losses of a probe particle moving through the dusty self–gravitational plasma demonstrates that electric disturbances can be excited not only by a charged particle but by neutral one as well which is impossible for the conventional ion–electron plasma. The energy losses of a charged massive particle associated with wave excitation can either increase (as compared with the conventional plasma) or drop down to zero for specific values of the charge–to–mass ratio, depending on the charge sign. Moreover, it is shown that the simultaneous action of electric and gravitational forces in a plasma medium can alter the traditional conditions for the development of beam instability or change its growth rate.