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Using a three-dimensional magnetohydrodynamic model, we simulate the magnetic reconnection in a single current sheet. We assume a finite guide field, a random perturbation on the velocity field and uniform resistivity. Our model enhances…

太阳与恒星天体物理 · 物理学 2015-09-23 Shuoyang Wang , Takaaki Yokoyama , Hiroaki Isobe

Magnetic reconnection is a fundamental and omnipresent energy conversion process in plasma physics. Novel observations of fields and particles from Parker Solar Probe (PSP) have shown the absence of reconnection in a large number of current…

Turbulent behavior at sub-proton scales in magnetized plasmas is important for a full understanding of the energetics of astrophysical flows such as the solar wind. We study the formation of electron temperature anisotropy due to…

空间物理 · 物理学 2015-06-15 Christopher T. Haynes , David Burgess , Enrico Camporeale

Reconnection is the process by which magnetic fields in a conducting fluid change their topology. This process is essential for understanding a wide variety of astrophysical processes, including stellar and galactic dynamos and…

天体物理学 · 物理学 2016-08-30 A. Lazarian , E. Vishniac

We present the results of a multi-event study of the normalized reconnection rate integrating events spanning the three primary regimes of reconnection observed by the Magnetospheric Multiscale (MMS) mission. We utilize a new method for…

空间物理 · 物理学 2025-08-19 S. V. Heuer , K. J. Genestreti , Y. -H Liu , J. R. Shuster , X. Li , R. B. Torbert , J. L. Burch

We analyze a series of three-dimensional magnetohydrodynamic numerical simulations of magnetic reconnection in a model solar corona to study the effect of the guide field component on quasi-steady state interchange reconnection in a…

太阳与恒星天体物理 · 物理学 2017-11-01 Justin K. Edmondson , Benjamin J. Lynch

We investigate the onset of driven collisionless reconnection and plasmoid formation in a magnetically dominated pair plasma, using 2D Particle-in-Cell simulations. Two force-free flux tubes of radius $R$ are initially pushed together with…

等离子体物理 · 物理学 2025-12-16 Camille Granier , Daniel Groselj , Luca Comisso , Fabio Bacchini

Flux emergence is ubiquitous in the Sun's lower atmosphere, where the emerging magnetic flux can reconnect with the pre-existing magnetic field. We investigate plasmoid formation and the resulting multi-thermal emissions during…

太阳与恒星天体物理 · 物理学 2025-08-18 Guanchong Cheng , Lei Ni , Robert Cameron , Hardi Peter , Yajie Chen , Jun Lin

Magnetic neutral points, where the magnitude of the magnetic field vanishes locally, are potential locations for energy conversion in the solar corona. The fact that the magnetic field is identically zero at these points suggests that for…

太阳与恒星天体物理 · 物理学 2012-02-02 Jorge Fuentes-Fernández , Clare E. Parnell , Alan W. Hood , Eric R. Priest , Dana W. Longcope

Magnetic reconnection and non-thermal particle distributions associated with current-driven instabilities are investigated by means of resistive magnetohydrodynamics (MHD) simulations combined with relativistic test particle methods. We…

高能天体物理现象 · 物理学 2017-04-19 Bart Ripperda , Oliver Porth , Chun Xia , Rony Keppens

Magnetic reconnection is a highly dynamic process that excites a wide variety of kinetic waves and instabilities. Transverse current sheet instabilities such as the lower-hybrid drift and secondary drift-kink instabilities in particular…

等离子体物理 · 物理学 2026-02-20 Kolter Bradshaw , Ammar Hakim , James Juno , Joshua Pawlak , Jason TenBarge , Amitava Bhattacharjee

We investigated the dynamic evolution of a 3-dimensional (3D) flux rope eruption and magnetic reconnection process in a solar flare, by simply extending 2-dimensional (2D) resistive magnetohydrodynamic simulation model of solar flares with…

太阳与恒星天体物理 · 物理学 2013-09-18 Keisuke Nishida , Naoto Nishizuka , Kazunari Shibata

We employ well-known concepts from statistical physics, quantum field theories and general topology to study magnetic reconnection, topology-change and their connection in incompressible flows in the context of an effective field theory…

等离子体物理 · 物理学 2025-04-17 Amir Jafari

We present results from the first self-consistent multi-fluid simulations of chromospheric magnetic reconnection in a weakly ionized reacting plasma. We simulate two dimensional magnetic reconnection in a Harris current sheet with a…

等离子体物理 · 物理学 2014-03-04 James E. Leake , Vyacheslav S. Lukin , Mark G. Linton , Eric T. Meier

The debate surrounding fast magnetic energy dissipation by magnetic reconnection has remained a fundamental topic in the plasma universe, not only in the Earth's magnetosphere but in astrophysical objects such as pulsar magnetospheres and…

高能天体物理现象 · 物理学 2021-06-22 Masahiro Hoshino

This work presents a more detailed analysis of the process of magnetic reconnection as promising ion beam accelerator mechanism with possible applications in laboratory plasmas and, more importantly, in the plasma propulsion field. In a…

等离子体物理 · 物理学 2018-08-15 Emanuele Cazzola , Davide Curreli , Giovanni Lapenta

We show how the conversion of magnetic field energy via magnetic reconnection can progress in a fully three-dimensional, fast, volume-filling regime. An initial configuration representative of many laboratory, space and astrophysical…

太阳与恒星天体物理 · 物理学 2015-05-27 Giovanni Lapenta , Lapo Bettarini

This review discusses the physics of magnetic reconnection, a process in which the magnetic field topology changes and magnetic energy is converted to kinetic energy, in pair plasmas in the relativistic regime. We focus on recent progress…

高能天体物理现象 · 物理学 2015-06-23 Daniel Kagan , Lorenzo Sironi , Benoit Cerutti , Dimitrios Giannios

Magnetic reconnection, the central engine that powers explosive phenomena throughout the Universe, is also perceived as one of the principal mechanisms for accelerating particles to high energies. Although various signatures of magnetic…

The meeting of astrophysical plasmas and their magnetic fields creates many reconnection sites. We experimentally compare the reconnection rate of laser-driven magnetic reconnection when it takes place at a single site and multiple sites.…

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