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Lower-hybrid waves generated by anomalous Doppler resonance in auroral plasmas

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Binghametal2010JPlasmaPhysics76_539LowerHybridWaves.pdf (96.08Kb)
Date
01/08/2010
Author
Bingham, Robert
Cairns, R Alan
Vorgul, I.
Shapiro, V. D.
Keywords
X-ray-emission
Transverse ion-acceleration
Solitary structures
Horseshoe distributions
Particle-acceleration
Electron acceleration
Suprauroral region
Sounding rocket
Field lines
Solar-wind
QA Mathematics
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Abstract
This paper describes sonic aspects of lower-hybrid wave activity in space plasmas. Lower-hybrid waves are particularly important since they can transfer energy efficiently between electrons and ions in a collisionless magnetized plasma. We consider the 'fan' or anomalous Doppler resonance instability driven by energetic electron tails and show that it is responsible for the generation of lower-hybrid waves. We also demonstrate that observations of their intensity are sufficient to drive the modulational instability.
Citation
Bingham , R , Cairns , R A , Vorgul , I & Shapiro , V D 2010 , ' Lower-hybrid waves generated by anomalous Doppler resonance in auroral plasmas ' , Journal of Plasma Physics , vol. 76 , no. Special Issue 3-4 , pp. 539-546 . https://doi.org/10.1017/S002237780999078X
Publication
Journal of Plasma Physics
Status
Peer reviewed
DOI
https://doi.org/10.1017/S002237780999078X
ISSN
0022-3778
Type
Journal article
Rights
Copyright © Cambridge University Press 2010
Collections
  • University of St Andrews Research
URL
http://www.scopus.com/inward/record.url?scp=77955769952&partnerID=8YFLogxK
URI
http://hdl.handle.net/10023/2457

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