Dust-acoustic waves in plasmas with opposite polarity grains

Details Dust-acoustic waves in plasmas with opposite polarity grains Dust-acoustic waves in plasmas with opposite polarity grains

Nov 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001p%26ss...49.1251d&link_type=abstract

Planetary and Space Science, Volume 49, Issue 13, p. 1251-1256.

Physics

18

Scientific paper

The dispersion relation is derived for current-driven dust-acoustic (DA) waves in a collisional plasma with dust grains having both positive and negative charges. The critical electric field is calculated for excitation of the two DA modes that are possible in such a plasma. Some numerical results are given for both a laboratory-type plasma and a cosmic-type plasma.

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