The influence of ion-acoustic turbulence on the electron acceleration in current sheet

Details The influence of ion-acoustic turbulence on the electron acceleration in current sheet The influence of ion-acoustic turbulence on the electron acceleration in current sheet

Sep 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003esasp.535..511w&link_type=abstract

In: Solar variability as an input to the Earth's environment. International Solar Cycle Studies (ISCS) Symposium, 23 - 28 June 2

Physics

Electron Acceleration, Ion Acoustic Wave, Energetic Electron Spectrum

Scientific paper

Under the assumption of quasi-stable magnetic reconnection, we argue that the ion acoustic wave should be excited due to the average drift velocity of electrons relative to protons inside the current sheet larger than electron thermal velocity. Then, based on the time scales of the electron acceleration in the reconnecting current sheets, we study the evolution of energetic electrons in different parameters by solving the Fokker-Planck equation including electric field and ion-acoustic turbulence scattering. The calculated energy spectra of electrons are basically consistent with the observations and may be used to explain the evolution of the hard X-ray spectrum.

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