Energy transfer and conversion in magnetic reconnection: Observation and simulation

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Author(s)Roy, S.
Author(s)Bandyopadhy R.
Author(s)Adhikari, S.
Author(s)Yang, Y
Author(s)Matthaeus, W. H.
Date Accessioned2025-12-01T21:57:07Z
Date Available2025-12-01T21:57:07Z
Publication Date2025-11-19
DescriptionThis article was originally published in Physics of Plasmas. The version of record is available at: https://doi.org/10.1063/5.0278907 © 2025 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
AbstractOne of the central problems in collisionless plasma turbulence is to understand the nature of the cross-scale energy transfer and dissipation occurring at kinetic scales. Magnetic reconnection plays an important role in dissipating energy and driving energy transfer in these systems. However, for reconnection, a detailed picture of the fluxes of energy in its several forms, and the conversion among them, until now remains unclear. In this study, a scale filtering method is adopted to explore how energy is converted between different forms and transferred across scales in turbulent magnetic reconnection using a combination of Magnetospheric Multiscale observations and particle-in-cell simulations. Two novel findings of this paper are that both ion and electron dissipation start to occur at sub-ion scale, at nearly same scale, and that most of the energy cascade due to reconnection is carried by the electron fluid.
SponsorThis research was supported in part by the NASA Heliospheric GI under Grant No. 80NSSC21K0739 and NASA under Grant No. 80NSSC21K1458 at Princeton University, and Subcontract No. SUB0000317 to Delaware; the MMS Theory and Modeling under Grant No. 80NSSC19K0565 at Delaware; and the NSFDOE under Grant No. PHYS-2108834 at Delaware. The authors acknowledge the Texas Advanced Computing Center (TACC) for providing resources that have contributed to the research results reported within this paper. The authors also acknowledge high‐performance computing support from Cheyenne (doi:10.5065/D6RX99HX) and Derecho (https://doi.org/10.5065/qx9a‐pg09) provided by NCAR's Computational and Information Systems Laboratory, sponsored by the National Science Foundation. We thank the MMS SDC, FPI, and FIELDS teams for their assistance with this study.
CitationS. Roy, R. Bandyopadhyay, S. Adhikari, Y. Yang, W. H. Matthaeus; Energy transfer and conversion in magnetic reconnection: Observation and simulation. Phys. Plasmas 1 November 2025; 32 (11): 112302. https://doi.org/10.1063/5.0278907
ISSN1089-7674
URLhttps://udspace.udel.edu/handle/19716/36773
Languageen_US
PublisherPhysics of Plasmas
dc.rightsAttribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
KeywordsEnergy conversion
KeywordsMagnetospheric dynamics
KeywordsMagnetic reconnection
KeywordsPlasma heating
KeywordsPlasma turbulence
KeywordsSpace plasma physics
TitleEnergy transfer and conversion in magnetic reconnection: Observation and simulation
TypeArticle
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