Dust-acoustic-drift wave instability in a space dusty plasma

Details Dust-acoustic-drift wave instability in a space dusty plasma Dust-acoustic-drift wave instability in a space dusty plasma

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002jgra..107.1492r&link_type=abstract

Journal of Geophysical Research (Space Physics), Volume 107, Issue A12, pp. SIA 21-1, CiteID 1492, DOI 10.1029/2002JA009539

Physics

Plasma Physics

3

Ionosphere: Plasma Waves And Instabilities, Space Plasma Physics: Waves And Instabilities, Planetology: Solar System Objects: Meteors, Radio Science: Waves In Plasma

Scientific paper

A dust-acoustic-drift wave instability is investigated in a nonuniform collisional dusty magnetoplasma. The plasma parameters are such that the electrons are magnetized, while the ions and dust grains are collisional and nonmagnetized, which may be characteristics of dusty plasmas in the E region of the Earth's ionosphere. The instability is driven by electron E × B and diamagnetic drifts. Possible application to the edges of dusty meteor trails at altitudes >95 km is considered. It is shown that this instability could be driven by an electron cross-field drift smaller than the ion thermal speed in a meteor trail containing a sufficient charge density of positively charged dust.

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