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Spatially Separated Electron and Proton Beams in a Simulated Solar Coronal Jet

Pallister, Ross; Wyper, Peter F.; Pontin, David I.; DeVore, C. Richard; Chiti, Federica

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Authors

Ross Pallister

David I. Pontin

C. Richard DeVore

Federica Chiti



Abstract

Magnetic reconnection is widely accepted to be a major contributor to nonthermal particle acceleration in the solar atmosphere. In this paper we investigate particle acceleration during the impulsive phase of a coronal jet, which involves bursty reconnection at a magnetic null point. A test-particle approach is employed, using electromagnetic fields from a magnetohydrodynamic simulation of such a jet. Protons and electrons are found to be accelerated nonthermally both downwards toward the domain's lower boundary and the solar photosphere, and outwards along the axis of the coronal jet and into the heliosphere. A key finding is that a circular ribbon of particle deposition on the photosphere is predicted, with the protons and electrons concentrated in different parts of the ribbon. Furthermore, the outgoing protons and electrons form two spatially separated beams parallel to the axis of the jet, signatures that may be observable in in-situ observations of the heliosphere.

Citation

Pallister, R., Wyper, P. F., Pontin, D. I., DeVore, C. R., & Chiti, F. (2021). Spatially Separated Electron and Proton Beams in a Simulated Solar Coronal Jet. Astrophysical Journal, 923(2), Article 163. https://doi.org/10.3847/1538-4357/ac2e6d

Journal Article Type Article
Online Publication Date Dec 20, 2021
Publication Date Dec 20, 2021
Deposit Date Dec 23, 2021
Publicly Available Date Mar 28, 2024
Journal Astrophysical Journal
Print ISSN 0004-637X
Electronic ISSN 1538-4357
Publisher American Astronomical Society
Peer Reviewed Peer Reviewed
Volume 923
Issue 2
Article Number 163
DOI https://doi.org/10.3847/1538-4357/ac2e6d

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Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/

Copyright Statement
Original content from this work may be used under the terms
of the Creative Commons Attribution 4.0 licence. Any further
distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.




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