Plasma density fluctuations, due to the presence of massive, charged dust particles, can alter the usual dispersion properties of waves as shown, in a particular case, by de Angelis et al. [1]. Here a general dispersion relation is derived, as an average over a random distribution of dust particles, and the possibility of complex solutions (wave damping) is pointed out.
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Inst Astron Geofis & Ciencias Atmosfer IAG USP, BR-05508090 Sao Paulo, BrazilInst Astron Geofis & Ciencias Atmosfer IAG USP, BR-05508090 Sao Paulo, Brazil
Jatenco-Pereira, V.
Chian, A. C. -L.
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Observ Paris, LESIA, CNRS, F-92190 Meudon, France
Natl Inst Space Res INPE, BR-12227010 Sao Jose Dos Campos, SP, Brazil
WISER, BR-12227010 Sao Jose Dos Campos, SP, Brazil
Univ Adelaide, Sch Math Sci, Adelaide, SA 5005, AustraliaInst Astron Geofis & Ciencias Atmosfer IAG USP, BR-05508090 Sao Paulo, Brazil
Chian, A. C. -L.
Rubab, N.
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IST, Dept Space Sci, Islamabad, PakistanInst Astron Geofis & Ciencias Atmosfer IAG USP, BR-05508090 Sao Paulo, Brazil