How common is reconnection in the magnetosheath?
Abstract
Downstream a parallel bow-shock the magnetosheath is one of the most turbulent regions in the magnetosphere. In this environment thin current sheets are formed, and Retinó et al. (2007) found evidence that magnetic reconnection occurs in these layers. The width of a typical current sheet is of the order of an ion gyroradius but the reconnection signatures are the same as for large-scale reconnection at the magnetopause or in the solar wind. We perform a small statistical study to determine the probability that reconnection actually takes place given a thin current sheet in a turbulent plasma. If reconnection turns out to be common in the magnetosheath, we expect it to be a common process in turbulent plasmas throughout the universe.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2008
- Bibcode:
- 2008AGUFMSM51A1626S
- Keywords:
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- 2712 Electric fields (2411);
- 2728 Magnetosheath;
- 7835 Magnetic reconnection (2723;
- 7526);
- 7863 Turbulence (4490)