Shock drift electron acceleration and generation of waves
Abstract
An analytically derived distribution function of reflected and accelerated electrons at a nearly perpendicular shock is presented. Then this distribution in a simplified form is introduced into a 1.5-D relativistic electromagnetic particle-in-cell (PIC) model and a generation of waves is studied. Numerical modeling shows not only a generation of Langmuir and high-frequency electromagnetic waves as expected, but also an efficient generation of whistler waves. Their role in emission processes of type II solar radio bursts is discussed.
- Publication:
-
Planetary and Space Science
- Pub Date:
- December 2007
- DOI:
- 10.1016/j.pss.2007.05.015
- Bibcode:
- 2007P&SS...55.2336K