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Physics of Plasmas : The structure of the electron outflow jet in collisionless magnetic reconnection

By Michael Hesse, Seiji Zenitani, and Alex Klimas

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Book Id: WPLBN0002169626
Format Type: PDF eBook :
File Size: Serial Publication
Reproduction Date: 10 November 2008

Title: Physics of Plasmas : The structure of the electron outflow jet in collisionless magnetic reconnection  
Author: Michael Hesse, Seiji Zenitani, and Alex Klimas
Volume: Issue : November 2008
Language: English
Subject: Science, Physics, Natural Science
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Physics of Plasmas Collection
Historic
Publication Date:
Publisher: American Institute of Physics

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Seiji Zenitani, And Alex Klima, M. H. (n.d.). Physics of Plasmas : The structure of the electron outflow jet in collisionless magnetic reconnection. Retrieved from http://worldjournal.org/


Description
Description: Particle-in-cell simulations and analytic theory are applied to the study of the electron outflow jet in collisionless magnetic reconnection. In these jets, which have also been identified in spacecraft observations, electron flow speeds in thin layers exceed the E×B drift, suggesting that electrons are unmagnetized. In this study, we find the surprising result that the electron flow jets can be explained by a combination of E×B drifts and of diamagnetic effects through the combination of the gradients of particle pressure and of the magnetic field. In a suitably rotated coordinate system, the electron motion is readily decomposed into E×B drift and the motion to support the required current density, consistent with electron gyrotropy. This process appears to be nondissipative.

 
 


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