Artículo
Gnavi, G.; Gomberoff, L.; Gratton, F.T.; Galvão, R.M.O. "Electromagnetic ion-beam instabilities in a cold plasma" (1996) Journal of Plasma Physics. 55(PART 1):77-86
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Abstract:
We study the stability of the cold-plasma dispersion relation for circularly polarized waves in a plasma composed of an ion background and an ion beam. The presence of the beam introduces a resonant branch into the dispersion relation for right-hand-polarized waves propagating in the direction of the external magnetic field, which, for V > Vφ, has negative energy (here V is the beam velocity and Vφ is the wave phase velocity). Therefore this branch may give rise to explosive instabilities when the waves experience parametric decays. It is shown graphically that resonant right-hand-polarized and nonresonant left-hand-polarized waves, propagating parallel to the external magnetic field, can be unstable. It is also shown that the instability region can extend to large frequencies and wavenumbers, and that the instability regions have a band structure. The parametric dependence of instability thresholds and marginal modes is also studied.
Registro:
| Documento: | Artículo |
| Título: | Electromagnetic ion-beam instabilities in a cold plasma |
| Autor: | Gnavi, G.; Gomberoff, L.; Gratton, F.T.; Galvão, R.M.O. |
| Filiación: | Inst. de Física del Plasma, Consejo Nac. de Invest. Cie. y Tec., Pab 1, 1428, Buenos Aires, Argentina Departamento de Física, Universidad de Buenos Aires, Ciudad Universitaria, Pab 1, 1428, Buenos Aires, Argentina Departamento de Física, Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago, Chile Instituto de Física, Universidad de São Paulo, CP 20516, São Paulo, Brazil |
| Año: | 1996 |
| Volumen: | 55 |
| Número: | PART 1 |
| Página de inicio: | 77 |
| Página de fin: | 86 |
| Título revista: | Journal of Plasma Physics |
| Título revista abreviado: | J Plasma Phys |
| ISSN: | 00223778 |
| CODEN: | JPLPB |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00223778_v55_nPART1_p77_Gnavi |
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Citas:
---------- APA ----------
Gnavi, G., Gomberoff, L., Gratton, F.T. & Galvão, R.M.O. (1996) . Electromagnetic ion-beam instabilities in a cold plasma. Journal of Plasma Physics, 55(PART 1), 77-86.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00223778_v55_nPART1_p77_Gnavi [ ]
---------- CHICAGO ----------
Gnavi, G., Gomberoff, L., Gratton, F.T., Galvão, R.M.O. "Electromagnetic ion-beam instabilities in a cold plasma" . Journal of Plasma Physics 55, no. PART 1 (1996) : 77-86.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00223778_v55_nPART1_p77_Gnavi [ ]
---------- MLA ----------
Gnavi, G., Gomberoff, L., Gratton, F.T., Galvão, R.M.O. "Electromagnetic ion-beam instabilities in a cold plasma" . Journal of Plasma Physics, vol. 55, no. PART 1, 1996, pp. 77-86.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00223778_v55_nPART1_p77_Gnavi [ ]
---------- VANCOUVER ----------
Gnavi, G., Gomberoff, L., Gratton, F.T., Galvão, R.M.O. Electromagnetic ion-beam instabilities in a cold plasma. J Plasma Phys. 1996;55(PART 1):77-86.Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00223778_v55_nPART1_p77_Gnavi [ ]
