Simulation and quasilinear theory of aperiodic ordinary mode instability

Journal Article · Sat Aug 15 04:00:00 EDT 2015 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4928556· OSTI ID:22490042

Seough, Jungjoon ^[1]; Yoon, Peter H. ^[2]; Hwang, Junga ^[3]; Nariyuki, Yasuhiro ^[1]

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1. Faculty of Human Development, University of Toyama, 3190, Gofuku, Toyama City, Toyama 930-8555 (Japan)
2. Institute for Physical Science and Technology, University of Maryland, College Park, Maryland 20742 (United States)
3. Korea Astronomy and Space Science Institute, Daejeon (Korea, Republic of)

The purely growing ordinary (O) mode instability driven by excessive parallel temperature anisotropy for high-beta plasmas was first discovered in the 1970s. This instability receives renewed attention because it may be applicable to the solar wind plasma. The electrons in the solar wind feature temperature anisotropies whose upper values are apparently limited by plasma instabilities. The O-mode instability may be important in this regard. Previous studies of O mode instability have been based on linear theory, but the actual solar wind electrons may be in saturated state. The present paper investigates the nonlinear saturation behavior of the O mode instability by means of one-dimensional particle-in-cell simulation and quasilinear theory. It is shown that the quasilinear method accurately reproduces the simulation results.

• OSTI ID: 22490042
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 8 Vol. 22; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANISOTROPY
COMPUTERIZED SIMULATION
COST
ELECTRONS
HIGH-BETA PLASMA
NONLINEAR PROBLEMS
ONE-DIMENSIONAL CALCULATIONS
PLASMA INSTABILITY
QUASILINEAR PROBLEMS
SOLAR WIND