| Revista: | Brazilian journal of physics |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000403303 |
| ISSN: | 0103-9733 |
| Autores: | Ziebell, L.F1 Schneider, R.S1 Juli, M.C. de2 Gaelzer, R3 |
| Instituciones: | 1Universidade Federal do Rio Grande do Sul, Instituto de Fisica, Porto Alegre, Rio Grande do Sul. Brasil 2Universidade Presbiteriana Mackenzie, Centro de Radio-Astronomia e Astrofisica Mackenzie, Sao Paulo. Brasil 3Universidade Federal de Pelotas, Instituto de Fisica e Matematica, Pelotas, Rio Grande do Sul. Brasil |
| Año: | 2008 |
| Periodo: | Sep |
| Volumen: | 38 |
| Número: | 3A |
| Paginación: | 297-322 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Analítico |
| Resumen en inglés | A kinetic approach to the problem of wave propagation in dusty plasmas, which takes into account the variation of the charge of the dust particles due to inelastic collisions with electrons and ions, is utilized as a starting point for the development of a new formulation, which writes the components of the dielectric tensor in terms of a finite and an infinite series, containing all effects of harmonics and Larmor radius. The formulation is quite general and valid for the whole range of frequencies above the plasma frequency of the dust particles, which were assumed motionless. The formulation is employed to the study of electrostatic waves propagating along the direction of the ambient magnetic field, in the case for which ions and electrons are described by Maxwellian distributions. The results obtained in a numerical analysis corroborate previous analysis, about the important role played by the inelastic collisions between electrons and ions and the dust particles, particularly on the imaginary part of the dispersion relation. The numerical analysis also show that additional terms in the components of the dielectric tensor, which are entirely due these inelastic collisions, play a very minor role in the case of electrostatic waves, under the conditions considered in the present analysis |
| Disciplinas: | Física y astronomía, Matemáticas |
| Palabras clave: | Teoría cinética y plasmas, Matemáticas aplicadas, Propagación de ondas, Plasmas de polvo, Colisiones inelásticas |
| Keyword: | Physics and astronomy, Mathematics, Kinetic theory and plasma, Applied mathematics, Wave propagation, Dusty plasmas, Inelastic collisions |
| Texto completo: | Texto completo (Ver PDF) |
