Title :
Effect of charged dust on Hall current instabilities in the E region
Author :
Rosenberg, Marlene
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., San Diego, La Jolla, CA, USA
fDate :
4/1/2001 12:00:00 AM
Abstract :
The effect of charged dust on Hall current instabilities in the ion frequency regime is investigated for plasma parameters representative of the lower E region of the ionosphere above about 95 km. Linear kinetic theory is used, and both the longer wavelength Farley-Buneman two-stream instability and the shorter wavelength, higher frequency Hall current instability are considered. Under daytime conditions, it is found that the presence of negatively (positively) charged dust can increase (decrease) the critical drift for the Farley-Buneman instability. In addition, the presence of positively charged dust can increase the critical drift for the shorter wavelength, higher frequency instability. Possible application to dusty regions such as meteor trails is briefly discussed
Keywords :
E-region; astrophysical plasma; dusty plasmas; meteors; plasma impurities; plasma instability; plasma kinetic theory; plasma magnetohydrodynamics; plasma transport processes; 95 km; E region; Farley-Buneman instability; Farley-Buneman two-stream instability; Hall current instabilities; Hall current instability; charged dust; critical drift; daytime conditions; dusty regions; ion frequency regime; ionosphere; linear kinetic theory; longer wavelength Farley-Buneman two-stream instability; lower E region; meteor trails; negatively charged dust; plasma parameters; positively charged dust; shorter wavelength higher frequency instability; Clouds; Dusty plasma; Electrons; Frequency; Ionosphere; Kinetic theory; Magnetic fields; Plasma applications; Plasma waves; Radar;
Journal_Title :
Plasma Science, IEEE Transactions on
