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Title: Ion temperature in plasmas with intrinsic Alfven waves

This Brief Communication clarifies the physics of non-resonant heating of protons by low-frequency Alfvenic turbulence. On the basis of general definition for wave energy density in plasmas, it is shown that the wave magnetic field energy is equivalent to the kinetic energy density of the ions, whose motion is induced by the wave magnetic field, thus providing a self-consistent description of the non-resonant heating by Alfvenic turbulence. Although the study is motivated by the research on the solar corona, the present discussion is only concerned with the plasma physics of the heating process.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [1]
  1. CAS Key Laboratory of Geospace Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei (China)
  2. (United States)
  3. Institute for Physical Science and Technology, University of Maryland, College Park, Maryland 20742 (United States)
  4. (Korea, Republic of)
Publication Date:
OSTI Identifier:
22299741
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 21; Journal Issue: 10; 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; ALFVEN WAVES; ENERGY DENSITY; HEATING; ION TEMPERATURE; KINETIC ENERGY; MAGNETIC FIELDS; PLASMA; PROTONS; SOLAR CORONA; TURBULENCE