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Record Details

Record 65 of 4556
A kinetic cross-field streaming instability
External Online Source: doi:10.1063/1.864285
Author and Affiliation:
Wu, C. S.(Maryland Univ., College Park, MD, United States)
Winske, D.(Maryland Univ., College Park, MD, United States)
Papadopoulos, K.(Maryland, University, College Park, MD, United States)
Zhou, Y. M.(Maryland Univ., College Park, MD, United States)
Tsai, S. T.(Maryland Univ., College Park, MD, United States)
Guo, S. C.(Maryland University, College Park, MD)
Abstract: In a high-beta plasma the so-called modified-two-stream instability, which results from strongly magnetized electrons drifting relative to unmagnetized ions across a homogeneous magnetic field, is misnamed because the mode is highly kinetic, particularly when the relative streaming velocity exceeds the Alfven speed of the plasma. This kinetic cross-field streaming instability is investigated in detail, examining the effect of the electromagnetic terms and the stability boundaries in both low- and high-beta plasmas. An approximate dispersion relation showing the relation of this mode to the whistler is derived and solutions of it are compared with those obtained from the exact dispersion relation. The kinetic mode, unlike the usual modified-two-stream instability, is not stabilized by electromagnetic effects when the relative electron-ion drift speed exceeds the Alfven speed.
Publication Date: May 01, 1983
Document ID:
19830052169
(Acquired Nov 30, 1995)
Accession Number: 83A33387
Subject Category: PLASMA PHYSICS
Document Type: Journal Article
Publication Information: Physics of Fluids (ISSN 0031-9171); 26; May 1983
Publisher Information: United States
Contract/Grant/Task Num: NAGW-81
Financial Sponsor: NASA; United States
Organization Source: Maryland Univ.; College Park, MD, United States
Academia Sinica; Beijing, China
Description: 9p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: BETA FACTOR; CROSSED FIELDS; KINETIC THEORY; MAGNETIC FIELDS; MAGNETOHYDRODYNAMIC STABILITY; WHISTLERS; ELECTROSTATICS; MAGNETIC FIELDS; PLASMA DYNAMICS; PROPAGATION MODES; WAVE DISPERSION; WAVE EXCITATION
Imprint And Other Notes: Physics of Fluids (ISSN 0031-9171), vol. 26, May 1983, p. 1259-1267.
Miscellaneous Notes: p. 1259-1267
Availability Source: Other Sources
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