Analytical solutions for time-dependent kinematic three-dimensional magnetic reconnection.

Tytuł:: Analytical solutions for time-dependent kinematic three-dimensional magnetic reconnection.
Autorzy:: Chen Y; Shenzhen Key Laboratory of Numerical Prediction for Space Storm, Institute of Space Science and Applied Technology, Harbin Institute of Technology, Shenzhen, 518055, China.
Wang Y; Shenzhen Key Laboratory of Numerical Prediction for Space Storm, Institute of Space Science and Applied Technology, Harbin Institute of Technology, Shenzhen, 518055, China.; Key Laboratory of Solar Activity and Space Weather, National Space Science Center, Chinese Academy of Sciences, Beijing, China.
Wei F; Shenzhen Key Laboratory of Numerical Prediction for Space Storm, Institute of Space Science and Applied Technology, Harbin Institute of Technology, Shenzhen, 518055, China.; Key Laboratory of Solar Activity and Space Weather, National Space Science Center, Chinese Academy of Sciences, Beijing, China.
Feng X; Shenzhen Key Laboratory of Numerical Prediction for Space Storm, Institute of Space Science and Applied Technology, Harbin Institute of Technology, Shenzhen, 518055, China.; Key Laboratory of Solar Activity and Space Weather, National Space Science Center, Chinese Academy of Sciences, Beijing, China.
Zhou Z; State Key Laboratory of Lunar and Planetary Sciences, Macau University of Science and Technology, Macau, 999078, China.
Wang B; Shenzhen Key Laboratory of Numerical Prediction for Space Storm, Institute of Space Science and Applied Technology, Harbin Institute of Technology, Shenzhen, 518055, China.
Zuo P; Shenzhen Key Laboratory of Numerical Prediction for Space Storm, Institute of Space Science and Applied Technology, Harbin Institute of Technology, Shenzhen, 518055, China.; Key Laboratory of Solar Activity and Space Weather, National Space Science Center, Chinese Academy of Sciences, Beijing, China.
Jiang C; Shenzhen Key Laboratory of Numerical Prediction for Space Storm, Institute of Space Science and Applied Technology, Harbin Institute of Technology, Shenzhen, 518055, China.; Key Laboratory of Solar Activity and Space Weather, National Space Science Center, Chinese Academy of Sciences, Beijing, China.
Xu X; State Key Laboratory of Lunar and Planetary Sciences, Macau University of Science and Technology, Macau, 999078, China.
Song X; Shandong Institute of Advanced Technology, Jinan, 250100, China.
Gu Y; Shenzhen Key Laboratory of Numerical Prediction for Space Storm, Institute of Space Science and Applied Technology, Harbin Institute of Technology, Shenzhen, 518055, China.
Wang L; Shenzhen Key Laboratory of Numerical Prediction for Space Storm, Institute of Space Science and Applied Technology, Harbin Institute of Technology, Shenzhen, 518055, China.
Xu X; Shenzhen Key Laboratory of Numerical Prediction for Space Storm, Institute of Space Science and Applied Technology, Harbin Institute of Technology, Shenzhen, 518055, China.
Bian X; Shenzhen Key Laboratory of Numerical Prediction for Space Storm, Institute of Space Science and Applied Technology, Harbin Institute of Technology, Shenzhen, 518055, China.
Źródło:: PloS one [PLoS One] 2023 May 30; Vol. 18 (5), pp. e0286138. Date of Electronic Publication: 2023 May 30 (Print Publication: 2023).
Typ publikacji:: Journal Article; Research Support, Non-U.S. Gov't
Język:: English
Imprint Name(s):: Original Publication: San Francisco, CA : Public Library of Science
MeSH Terms:: Physics*
Magnetic Fields*
Biomechanical Phenomena ; Physical Phenomena ; Diffusion
References:: Science. 2007 Dec 7;318(5856):1588-91. (PMID: 18063789)
Nat Commun. 2018 Dec 6;9(1):5223. (PMID: 30523290)
Science. 2016 Jun 3;352(6290):aaf2939. (PMID: 27174677)
Nat Commun. 2015 Feb 04;6:6190. (PMID: 25648079)
Phys Rev Lett. 2004 Oct 22;93(17):175003. (PMID: 15525085)
Entry Date(s):: Date Created: 20230530 Date Completed: 20230601 Latest Revision: 20230617
Update Code:: 20240105
PubMed Central ID:: PMC10228802
DOI:: 10.1371/journal.pone.0286138
PMID:: 37253032
: Czasopismo naukowe

Pełny tekst

Magnetic reconnection is a process that can rapidly convert magnetic field energy into plasma thermal energy and kinetic energy, and it is also an important energy conversion mechanism in space physics, astrophysics and plasma physics. Research related to analytical solutions for time-dependent three-dimensional magnetic reconnection is extremely difficult. For decades, several mathematical descriptions have been developed regarding different reconnection mechanisms, in which the equations based on magnetohydrodynamics theory outside the reconnection diffusion region are widely accepted. However, the equation set cannot be analytically solved unless specified constraints are imposed or the equations are reduced. Based on previous analytical methods for kinematic stationary reconnection, here the analytical solutions for time-dependent kinematic three-dimensional magnetic reconnection are discussed. In contrast to the counter-rotating plasma flows that existed in steady-state reconnection, it is found that spiral plasma flows, which have never been reported before, can be generated if the magnetic field changes exponentially with time. These analyses reveal new scenarios for time-dependent kinematic three-dimensional magnetic reconnection, and the deduced analytical solutions could improve our understanding of the dynamics involved in reconnection processes, as well as the interactions between the magnetic field and plasma flows during magnetic reconnection.
Competing Interests: The authors have declared that no competing interests exist.
(Copyright: © 2023 Chen et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)

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