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Title: Time dependent evolution of linear kinetic Alfvén waves in inhomogeneous plasma

The propagation of linear Kinetic Alfvén waves (KAWs) in inhomogeneous magnetized plasma has been studied while including inhomogeneities in transverse and parallel directions relative to the background magnetic field. The propagation of KAWs in inhomogeneous magnetized plasma is expected to play a key role in energy transfer and turbulence generation in space and laboratory plasmas. The inhomogeneity scale lengths in both directions may control the nature of fluctuations and localization of the waves. We present a theoretical study of the localization of KAWs, variations in magnetic field amplitude in time, and variation in the frequency spectra arising from inhomogeneities. The relevance of the model to space and laboratory observations is discussed.
Authors:
;  [1] ;  [2]
  1. Centre for Energy Studies, Indian Institute of Technology, Delhi 110016 (India)
  2. Department of Physics, West Virginia University, Morgantown, West Virginia 26506-6315 (United States)
Publication Date:
OSTI Identifier:
22408054
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 2; Other Information: (c) 2015 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; ALFVEN WAVES; AMPLITUDES; ENERGY TRANSFER; FLUCTUATIONS; INHOMOGENEOUS PLASMA; KINETICS; MAGNETIC FIELDS; SPECTRA; TIME DEPENDENCE; TURBULENCE