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

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
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 21; Journal Issue: 9; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
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