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Magnetic reconnection requires, at least locally, a non-ideal plasma response. In collisionless space and astrophysical plasmas, turbulence could permit this instead of the too rare binary collisions. We investigated the influence of…

等离子体物理 · 物理学 2016-05-25 Fabien Widmer , Jörg Büchner , Nobumitsu Yokoi

The collision of magnetic reconnection jets is studied by means of a three dimensional numerical simulation at kinetic scale, in the presence of a strong guide field. We show that turbulence develops due to the jets collision producing…

太阳与恒星天体物理 · 物理学 2018-11-07 F. Pucci , W. H. Matthaeus , A. Chasapis , S. Servidio , L. Sorriso-Valvo , V. Olshevsky , D. L. Newman , M. V. Goldman , G. Lapenta

Magnetic reconnection and plasma turbulence are ubiquitous processes important for laboratory, space and astrophysical plasmas. Reconnection has been suggested to play an important role in the energetics and dynamics of turbulence by…

等离子体物理 · 物理学 2023-08-31 Tak Chu Li , Yi-Hsin Liu , Yi Qi , Muni Zhou

Magnetic reconnection, topological change in magnetic fields, is a fundamental process in magnetized plasmas. It is associated with energy release in regions of magnetic field annihilation, but this is only one facet of this process.…

高能天体物理现象 · 物理学 2020-02-19 Alex Lazarian , Gregory L. Eyink , Amir Jafari , Grzegorz Kowal , Hui Li , Siyao Xu , Ethan T. Vishniac

Magnetic reconnection is a fundamental plasma process that converts magnetic energy into bulk flow energy, thermal energy, and nonthermal particle acceleration. Despite its importance, the statistical properties of the turbulent…

星系天体物理 · 物理学 2025-12-16 Yue Hu , Luca Comisso , Lorenzo Sironi , Siyao Xu

The ubiquitous turbulence in astrophysical plasmas is important for both magnetic reconnection and reconnection acceleration. We study the particle acceleration during fast 3D turbulent reconnection with reconnection-driven turbulence.…

等离子体物理 · 物理学 2023-01-11 Siyao Xu , Alex Lazarian

Alongside magnetic reconnection, turbulence is another fundamental nonlinear plasma phenomenon that plays a key role in energy transport and conversion in space and astrophysical plasmas. From a numerical, theoretical, and observational…

Transport in collisionless plasmas is usually called anomalous, being due to the interaction between the particles and the self-generated turbulence by their collective interactions. Because of its relevance for astrophysical and space…

等离子体物理 · 物理学 2017-02-14 P. A. Muñoz , J. Büchner , P. Kilian

Magnetic field embedded in a perfectly conducting fluid preserves its topology for all time. Although ionized astrophysical objects, like stars and galactic disks, are almost perfectly conducting, they show indications of changes in…

星系天体物理 · 物理学 2010-03-16 A. Lazarian , G. Kowal , E. Vishniac , K. Kulpa-Dubel , K. Otmianowska-Mazur

It has recently been proposed (Loureiro & Boldyrev 2017; Mallet et al. 2017) that the inertial interval in magnetohydrodynamic (MHD) turbulence is terminated at small scales not by a Kolmogorov-like dissipation region, but rather by a new…

等离子体物理 · 物理学 2017-12-13 N. F. Loureiro , S. Boldyrev

We investigate the impact of turbulence on magnetic reconnection through high-resolution 3D magnetohydrodynamical (MHD) simulations, spanning Lundquist numbers from $S=10^3$ to $10^6$. Building on Lazarian and Vishniac's (1999) theory,…

等离子体物理 · 物理学 2025-10-02 Giovani H. Vicentin , Grzegorz Kowal , Elisabete M. de Gouveia Dal Pino , Alex Lazarian

Magnetic reconnection is a fundamental mechanism of driving eruptive phenomena of different scales and may be coupled with turbulence as suggested by recent remote-sensing and in-situ observations. However, the specific physics behind the…

太阳与恒星天体物理 · 物理学 2025-04-08 Yulei Wang , Xin Cheng , Mingde Ding

Turbulent plasma motion is common in the universe, and invoked in solar flares to drive effective acceleration leading to high energy electrons. Unresolved mass motions are frequently detected in flares from extreme ultraviolet (EUV)…

太阳与恒星天体物理 · 物理学 2023-05-03 Wenzhi Ruan , Limei Yan , Rony Keppens

Astrophysical fluids are generically turbulent and this must be taken into account for most transport processes. We discuss how the preexisting turbulence modifies magnetic reconnection and how magnetic reconnection affects the MHD…

星系天体物理 · 物理学 2015-06-03 A. Lazarian , G. Eyink , E. Vishniac

Classical Sweet-Parker models of reconnection predict that reconnection rates depend inversely on the resistivity, usually parameterized using the dimensionless Lundquist number ($\Lund$). We describe magnetohydrodynamic (MHD) simulations…

太阳与恒星天体物理 · 物理学 2015-06-11 Jeffrey S. Oishi , Mordecai-Mark Mac Low , David C. Collins , Moeko Tamura

Magnetic reconnection is best known from observations of the Sun where it causes solar flares. Observations estimate the reconnection rate a small, but non-negligible fraction of the Alfv\'en speed, so-called fast reconnection. Until…

太阳与恒星天体物理 · 物理学 2017-02-15 Andrey Beresnyak

We report turbulence effects on magnetic reconnection in relativistic plasmas using 3-dimensional relativistic resistive magnetohydrodynamics simulations. We found reconnection rate became independent of the plasma resistivity due to…

高能天体物理现象 · 物理学 2015-12-09 Makoto Takamoto , Tsuyoshi Inoue , Alexandre Lazarian

We present detailed analysis of the turbulence observed in three-dimensional particle-in-cell simulations of magnetic reconnection at the magnetopause. The parameters are representative of an electron diffusion region encounter of the…

空间物理 · 物理学 2018-05-04 L. Price , M. Swisdak , J. F. Drake , J. L. Burch , P. A. Cassak , R. E. Ergun

Magnetic reconnection and turbulence are deeply intertwined in magnetohydrodynamic flows, yet how reconnection self-generates turbulence remains unclear. Using an ensemble of high-resolution three-dimensional direct numerical simulations of…

等离子体物理 · 物理学 2026-02-26 Nick Williams , Alessandro De Rosis , Alex Skillen

Magnetic reconnection, a fundamental plasma process, is pivotal in understanding energy conversion and particle acceleration in astrophysical systems. While extensively studied in two-dimensional (2D) configurations, the dynamics of…

等离子体物理 · 物理学 2025-08-05 Vinay Kumar , Pallavi Bhat
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