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Title: Theory of electromagnetic fluctuations for magnetized multi-species plasmas

Abstract

Analysis of electromagnetic fluctuations in plasma provides relevant information about the plasma state and its macroscopic properties. In particular, the solar wind persistently sustains a small but detectable level of magnetic fluctuation power even near thermal equilibrium. These fluctuations may be related to spontaneous electromagnetic fluctuations arising from the discreteness of charged particles. Here, we derive general expressions for the plasma fluctuations in a multi-species plasma following arbitrary distribution functions. This formalism, which generalizes and includes previous works on the subject, is then applied to the generation of electromagnetic fluctuations propagating along a background magnetic field in a plasma of two proton populations described by drifting bi-Maxwellians.

Authors:
;  [1];  [2];  [3];  [4];  [3];  [1];  [5]
  1. Departamento de Física, Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago (Chile)
  2. Departamento de Física, Universidad de Concepción, Concepción 4070386 (Chile)
  3. NASA Goddard Space Flight Center, Heliophysics Science Division, Geospace Physics Laboratory, Mail Code 673, Greenbelt, Maryland 20771 (United States)
  4. (United States)
  5. (Colombia)
Publication Date:
OSTI Identifier:
22303649
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 21; Journal Issue: 9; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; CHARGED PARTICLES; DISTRIBUTION FUNCTIONS; FLUCTUATIONS; MAGNETIC FIELDS; PLASMA; PROTONS; SOLAR WIND; THERMAL EQUILIBRIUM

Citation Formats

Navarro, Roberto E., E-mail: roberto.navarro@ug.uchile.cl, Muñoz, Víctor, Araneda, Jaime, Moya, Pablo S., Department of Physics, Catholic University of America, Washington, D. C. 20064, Viñas, Adolfo F., Valdivia, Juan A., and Centro de Estudios Interdisciplinarios Básicos y Aplicados en Complejidad, CEIBA complejidad, Bogotá. Theory of electromagnetic fluctuations for magnetized multi-species plasmas. United States: N. p., 2014. Web. doi:10.1063/1.4894700.
Navarro, Roberto E., E-mail: roberto.navarro@ug.uchile.cl, Muñoz, Víctor, Araneda, Jaime, Moya, Pablo S., Department of Physics, Catholic University of America, Washington, D. C. 20064, Viñas, Adolfo F., Valdivia, Juan A., & Centro de Estudios Interdisciplinarios Básicos y Aplicados en Complejidad, CEIBA complejidad, Bogotá. Theory of electromagnetic fluctuations for magnetized multi-species plasmas. United States. doi:10.1063/1.4894700.
Navarro, Roberto E., E-mail: roberto.navarro@ug.uchile.cl, Muñoz, Víctor, Araneda, Jaime, Moya, Pablo S., Department of Physics, Catholic University of America, Washington, D. C. 20064, Viñas, Adolfo F., Valdivia, Juan A., and Centro de Estudios Interdisciplinarios Básicos y Aplicados en Complejidad, CEIBA complejidad, Bogotá. Mon . "Theory of electromagnetic fluctuations for magnetized multi-species plasmas". United States. doi:10.1063/1.4894700.
@article{osti_22303649,
title = {Theory of electromagnetic fluctuations for magnetized multi-species plasmas},
author = {Navarro, Roberto E., E-mail: roberto.navarro@ug.uchile.cl and Muñoz, Víctor and Araneda, Jaime and Moya, Pablo S. and Department of Physics, Catholic University of America, Washington, D. C. 20064 and Viñas, Adolfo F. and Valdivia, Juan A. and Centro de Estudios Interdisciplinarios Básicos y Aplicados en Complejidad, CEIBA complejidad, Bogotá},
abstractNote = {Analysis of electromagnetic fluctuations in plasma provides relevant information about the plasma state and its macroscopic properties. In particular, the solar wind persistently sustains a small but detectable level of magnetic fluctuation power even near thermal equilibrium. These fluctuations may be related to spontaneous electromagnetic fluctuations arising from the discreteness of charged particles. Here, we derive general expressions for the plasma fluctuations in a multi-species plasma following arbitrary distribution functions. This formalism, which generalizes and includes previous works on the subject, is then applied to the generation of electromagnetic fluctuations propagating along a background magnetic field in a plasma of two proton populations described by drifting bi-Maxwellians.},
doi = {10.1063/1.4894700},
journal = {Physics of Plasmas},
issn = {1070-664X},
number = 9,
volume = 21,
place = {United States},
year = {2014},
month = {9}
}