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Magnetic Reconnection in a Quasi-Parallel Shock: Two-Dimensional Local Particle-in-Cell Simulation

Bessho, Naoki; Chen, Lijen; Wang, Shan; Hesse, Michael; Wilson, Lynn B.
Peer reviewed, Journal article
Published version
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https://hdl.handle.net/1956/22395
Utgivelsesdato
2019
Metadata
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Samlinger
  • Department of Physics and Technology [1342]
Originalversjon
https://doi.org/10.1029/2019gl083397
Sammendrag
Magnetic reconnection in a quasi‐parallel bow shock is investigated with two‐dimensional local particle‐in‐cell simulations. In the shock transition and downstream regions, large amplitude magnetic fluctuations exist, and abundant current sheets form. In some current sheets, reconnection occurs, and ion‐scale and electron‐scale magnetic islands are generated. In electron‐scale island regions, only electron outflow jets are observed, producing a quadrupolar out‐of‐plane magnetic field pattern, while in ion‐scale islands, both ions and electrons are involved and energized in reconnection. Normalized reconnection rates are obtained to be between around 0.1 to 0.2, and particle acceleration signatures are seen in distribution functions.
Utgiver
AGU
Tidsskrift
Geophysical Research Letters
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Copyright 2019 American Geophysical Union. All Rights Reserved.

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