Artículo
Abstract:
The development of the anisotropy of the electron distribution function in the lower solar corona has been studied through a test-particle model, revealing that particles with ν∥ > 5re will eventually run away owing to the magnetic pumping effect. The scaling with ν∥ of the parallel distribution function and of the perpendicular temperature is also derived. The theory shows a suprathermal tail originated near the coronal base that dominates the energy flux at distances r ≃ 4 Ṙ. We analyze the high-frequency instability produced by the small anisotropy in perpendicular energy of the runaway electron distribution in the magnetized plasma of the solar wind. A phenomenological description of this instability is obtained. It is also reported that the stability behavior is uncorrelated with the perpendicular temperature profile. The efficiency of Langmuir oscillations as a heating mechanism for the solar wind is discussed. © 1996. The American Astronomical Society. All rights reserved.
Registro:
| Documento: | Artículo |
| Título: | Langmuir instabilities in the solar wind plasma |
| Autor: | Canullo, M.V.; Hasi, C.D.E.L. |
| Filiación: | Institute de Astronomía y Fisica del Espacio (CONICET), C.C. 67, Sucursal 28, 1428 Buenos Aires, Argentina Departamento de Física, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, 1428 Buenos Aires, Argentina Instituto de Ciencias, Universidad Nacional de General Sarrniento, San Miguel, Prov. de Buenos Aires, Argentina |
| Palabras clave: | Instabilities; Plasmas; Solar wind |
| Año: | 1996 |
| Volumen: | 461 |
| Número: | 1 PART I |
| Página de inicio: | 472 |
| Página de fin: | 477 |
| DOI: | http://dx.doi.org/10.1086/177074 |
| Título revista: | Astrophysical Journal |
| Título revista abreviado: | Astrophys. J. |
| ISSN: | 0004637X |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004637X_v461_n1PARTI_p472_Canullo |
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Citas:
---------- APA ----------
Canullo, M.V. & Hasi, C.D.E.L. (1996) . Langmuir instabilities in the solar wind plasma. Astrophysical Journal, 461(1 PART I), 472-477.http://dx.doi.org/10.1086/177074
---------- CHICAGO ----------
Canullo, M.V., Hasi, C.D.E.L. "Langmuir instabilities in the solar wind plasma" . Astrophysical Journal 461, no. 1 PART I (1996) : 472-477.http://dx.doi.org/10.1086/177074
---------- MLA ----------
Canullo, M.V., Hasi, C.D.E.L. "Langmuir instabilities in the solar wind plasma" . Astrophysical Journal, vol. 461, no. 1 PART I, 1996, pp. 472-477.http://dx.doi.org/10.1086/177074
---------- VANCOUVER ----------
Canullo, M.V., Hasi, C.D.E.L. Langmuir instabilities in the solar wind plasma. Astrophys. J. 1996;461(1 PART I):472-477.http://dx.doi.org/10.1086/177074
