Annales Geophysicae
Annales Geophysicae
ANGEO
Articles | Volume 35, issue 6
Articles | Volume 35, issue 6
https://doi.org/10.5194/angeo-35-1241-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/angeo-35-1241-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 35, issue 6
Regular paper
 | 
22 Nov 2017
Regular paper |  | 22 Nov 2017

Nonlinear radiation generation processes in the auroral acceleration region

Raymond Pottelette and Matthieu Berthomier

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Short summary
On the high-potential side of a double layer, elementary radiation events are detected. They occur substantially above the local electron gyrofrequency and are associated with the presence of electron holes. The velocity of these nonlinear structures can be derived from the Doppler-shifted frequency spectrum above the electron gyrofrequency. The generated electron holes appear as the nonlinear evolution of electrostatic waves generated by the electron–electron two-stream instability.
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