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How Hall electric fields intrinsically chaotize and heat ions during collisionless magnetic reconnection

Yoon, Young Dae and Bellan, Paul M. (2021) How Hall electric fields intrinsically chaotize and heat ions during collisionless magnetic reconnection. Physics of Plasmas, 28 (2). Art. No. 022113. ISSN 1070-664X. https://resolver.caltech.edu/CaltechAUTHORS:20210224-102724312

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Abstract

The origin of extreme and anomalous ion heating during magnetic reconnection has been a long-standing mystery. It is shown in this paper that, at the core of the process, the stochastic heating mechanism is responsible for this energization. The in-plane Hall electric fields that intrinsically develop during collisionless reconnection not only accelerate ions but also thermalize them by inducing chaotic motion. The mechanism explains various observed features of ion heating, e.g., its relation to the guide field strength and the ion mass-to-charge ratio.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1063/5.0040374DOIArticle
ORCID:
AuthorORCID
Yoon, Young Dae0000-0001-8394-2076
Bellan, Paul M.0000-0002-0886-8782
Additional Information:© 2021 Published under license by AIP Publishing. Submitted: 14 December 2020; Accepted: 31 January 2021; Published Online: 23 February 2021. This paper is part of the Special Collection: Papers from the 62nd Annual Meeting of the APS Division of Plasma Physics. Paper BI1 6, Bull. Am. Phys. Soc. 65 (2020). The authors would like to thank Gunsu S. Yun for useful discussions and suggestions. This material is based upon the work supported by the U.S. Department of Energy Office of Science, Office of Fusion Energy Sciences under Award No. DE-FG02-04ER54755, the Air Force Office of Scientific Research under Award No. FA9550–17-1–0023, and the NSF Solar Terrestrial Research Program via Award Grant No. 1914599. The particle-in-cell computations presented here were conducted on the Caltech High Performance Cluster partially supported by a grant from the Gordon and Betty Moore Foundation. Data Availability: The data that support the findings of this study are available from the corresponding author upon reasonable request.
Funders:
Funding AgencyGrant Number
Department of Energy (DOE)DE-FG02-04ER54755
Air Force Office of Scientific Research (AFOSR)FA9550-17-1-0023
NSFAGS-1914599
Gordon and Betty Moore FoundationUNSPECIFIED
Issue or Number:2
Record Number:CaltechAUTHORS:20210224-102724312
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20210224-102724312
Official Citation:How Hall electric fields intrinsically chaotize and heat ions during collisionless magnetic reconnection. Young Dae Yoon and Paul M. Bellan; Physics of Plasmas 28:2; DOI: 10.1063/5.0040374
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:108169
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:24 Feb 2021 18:40
Last Modified:24 Feb 2021 18:40

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