Dust-acoustic modes in self-gravitating plasmas with dust size distributions

Details Dust-acoustic modes in self-gravitating plasmas with dust size distributions Dust-acoustic modes in self-gravitating plasmas with dust size distributions

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001phrve..64c6401y&link_type=abstract

Physical Review E (Statistical, Nonlinear, and Soft Matter Physics), Volume 64, Issue 3, September 2001, id.036401

Physics

11

Dusty Or Complex Plasmas, Plasma Crystals, Electrostatic Waves And Oscillations, Magnetohydrodynamics And Plasmas

Scientific paper

Using a kinetic description, dust-acoustic waves are considered for dusty plasmas containing, besides the electrons and ions, dust particles with continuous mass (size) distributions. For broad size spectra, self-gravitational effects cannot be neglected anymore because in the competition between electromagnetic and gravitational forces, the scale tips over towards gravitation for the heavier dust grains. Self-gravitational effects are clearly interwoven with the grain size distribution and here the effects of different power-law size distributions on the propagation, damping, and instability of low-frequency waves are discussed.

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