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Title: Quasilinear theory and particle-in-cell simulation of proton cyclotron instability

The electromagnetic ion (proton) cyclotron instability is important for regulating the excessive development of perpendicular temperature anisotropy in the solar wind, for instance, when it is compressed in the vicinity of the Earth's magnetosheath environment. A recent letter [Seough et al., Phys. Rev. Lett. 110, 071103 (2013)] successfully employed the quasilinear kinetic theory to explain the observed temperature anisotropy upper bound. The present paper rigorously examines the reliability of the quasilinear theory by making a direct comparison against results from the particle-in-cell simulation method. It is found that the quasilinear approach is indeed a valid first-cut theoretical tool in the study of proton cyclotron instability.
Authors:
 [1] ;  [2] ;  [3] ;  [1] ;  [3]
  1. Korean Astronomy and Space Science Institute, Daejeon (Korea, Republic of)
  2. Institute for Physical Science and Technology, University of Maryland, College Park, Maryland 20742 (United States)
  3. (Korea, Republic of)
Publication Date:
OSTI Identifier:
22299967
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 21; Journal Issue: 6; 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; ANISOTROPY; COMPARATIVE EVALUATIONS; CYCLOTRON INSTABILITY; MAGNETOSHEATH; PLASMA SIMULATION; QUASILINEAR PROBLEMS; SOLAR WIND