English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Two-stage Electron Acceleration by 3D Collisionless Guide-field Magnetic Reconnection

Muñoz Sepúlveda, P. A., & Büchner, J. (2018). Two-stage Electron Acceleration by 3D Collisionless Guide-field Magnetic Reconnection. The Astrophysical Journal, 864(1): 92. doi:10.3847/1538-4357/aad5e9.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/21.11116/0000-0002-11A1-4 Version Permalink: http://hdl.handle.net/21.11116/0000-0002-1364-8
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Muñoz Sepúlveda, Patricio A.1, Author              
Büchner, Jörg1, Author              
Affiliations:
1Department Sun and Heliosphere, Max Planck Institute for Solar System Research, Max Planck Society, ou_1832289              

Content

show
hide
Free keywords: acceleration of particles; magnetic reconnection; plasmas
 MPIS_GROUPS: Theory and Simulation of Solar System Plasmas
 MPIS_PROJECTS: Theory: Sim Sol Sys Plasma
 Abstract: We report a newly found two-stage mechanism of electron acceleration near X-lines of 3D collisionless guide-field magnetic reconnection in the nonrelativistic regime typical, e.g., for stellar coronae. We found that after electrons are first pre-accelerated during the linear growth of reconnection, they become additionally accelerated in the course of the nonlinear stage of 3D guide-field magnetic reconnection. This additional acceleration is due to the filamentation of electric and magnetic fields caused by streaming instabilities. In addition to enhanced parallel electric fields, the filamentation leads to additional curvature-driven electron acceleration in the guide-field direction. As a result, part of the accelerated electron spectra becomes a power law with a spectral index of ~−1.6 near the X-line. This second stage of acceleration due to nonlinear reconnection is relevant for the production of energetic electrons in, e.g., thin current sheets of stellar coronae.

Details

show
hide
Language(s): eng - English
 Dates: 2018-09-112018
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.3847/1538-4357/aad5e9
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: The Astrophysical Journal
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Bristol; Vienna : IOP Publishing; IAEA
Pages: - Volume / Issue: 864 (1) Sequence Number: 92 Start / End Page: - Identifier: ISSN: 0004-637X
CoNE: https://pure.mpg.de/cone/journals/resource/954922828215_3