Dust acoustic wave in a thermal dusty plasma.
The dust acoustic wave (DAW) spectrum is reexamined to account for the dust charge fluctuation dynamics in a thermal dusty plasma whose constituents are electrons and positively charged dust particulates. The latter appear because of thermionic and ultraviolet induced photoemissions. Consideration of dust charge fluctuations modifies the DAW frequency, and also produces collisionless spatiotemporal damping.
Shukla
P K
PK
Institut für Theoretische Physik IV, Fakultät für Physik und Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany.