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相关论文: Three-dimensional magnetic reconnection in astroph…

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Magnetic reconnection has been intensively studied in fully ionized plasmas. However, plasmas are often partially ionized in astrophysical environments. The interactions between the neutral particles and ionized plasmas might strongly…

等离子体物理 · 物理学 2020-03-31 Lei Ni , Hantao Ji , Nicholas A. Murphy , Jonathan Jara-Almonte

Reconnection is one of the key processes in astrophysical and laboratory plasmas: it is the opposite of a dynamo. Looking at energy, a dynamo transforms kinetic energy in magnetic energy while reconnection takes magnetic energy and returns…

等离子体物理 · 物理学 2019-02-20 Giovanni Lapenta , Stefano Markidis , Andrey Divin , David Newman , Martin Goldman

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

Magnetic reconnection has long been known to be the most important mechanism not only for mixing the plasmas by changing the magnetic field topology but also for releasing the magnetic field energy into the plasma kinetic energy. During…

高能天体物理现象 · 物理学 2024-04-25 Masahiro Hoshino

Magnetic reconnection is invoked as one of the primary mechanisms to produce energetic particles. We employ large-scale three-dimensional (3D) particle-in-cell simulations of reconnection in magnetically-dominated ($\sigma=10$) pair plasmas…

高能天体物理现象 · 物理学 2021-12-15 Hao Zhang , Lorenzo Sironi , Dimitrios Giannios

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

Three-dimensional magnetic reconnection is a fundamental plasma process crucial for heating the solar corona and generating the solar wind, but resolving and characterizing it on the Sun remains challenging. Using high-quality data from the…

Magnetic reconnection, a fundamental plasma process associated with a rapid dissipation of magnetic energy, is believed to power many disruptive phenomena in laboratory plasma devices, the Earth magnetosphere, and the solar corona.…

高能天体物理现象 · 物理学 2015-05-19 Dmitri A. Uzdensky , Jonathan C. McKinney

Magnetic reconnection in strongly magnetized regions around the temperature minimum region of the low solar atmosphere is studied by employing MHD-based simulations of a partially ionized plasma within a reactive 2.5D multi-fluid model. It…

太阳与恒星天体物理 · 物理学 2018-01-15 Lei Ni , Vyacheslav S. Lukin , Nicholas A. Murphy , Jun Lin

In strongly magnetized astrophysical plasma systems, magnetic reconnection is believed to be a primary process during which explosive energy release and particle acceleration occur, leading to significant high-energy emission. Past years…

高能天体物理现象 · 物理学 2021-10-04 Fan Guo , Xiaocan Li , William Daughton , Hui Li , Patrick Kilian , Yi-Hsin Liu , Qile Zhang , Haocheng Zhang

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

The paper examines the prospects of using laser plasmas for studying novel regimes of the magnetic field line reconnection and charged particle acceleration. Basic features of plasma dynamics in the three-dimensional configurations relevant…

等离子体物理 · 物理学 2016-11-23 S. V. Bulanov

A broad variety of observational methods allows us to see the effect of magnetic reconnection in high-temperature strongly-magnetized plasma of the solar corona. Some specific features of the large-scale reconnection in large solar flares…

太阳与恒星天体物理 · 物理学 2011-02-23 B. V. Somov , S. I. Bezrodnykh , L. S. Ledentsov

We performed three-dimensional Particle-in-Cell simulations of magnetic reconnection with multiple magnetic null points. Magnetic field energy conversion into kinetic energy was about five times higher than in traditional Harris sheet…

空间物理 · 物理学 2015-09-29 Vyacheslav Olshevsky , Giovanni Lapenta , Stefano Markidis

Magnetic reconnection, a fundamentally important process in many aspects of astrophysics, is believed to be initiated by the tearing instability of an electric current sheet, a region where magnetic field abruptly changes direction and…

太阳与恒星天体物理 · 物理学 2020-03-11 James Leake , Lars Daldorff , James Klimchuk

We provide examples of periodic solutions (in both 2 and 3 dimension) of the Magnetohydrodynamics equations such that the topology of the magnetic lines changes during the evolution. This phenomenon, known as magnetic reconnection, is…

偏微分方程分析 · 数学 2025-03-27 Pedro Caro , Gennaro Ciampa , Renato Lucà

Magnetic reconnection occurs when two plasmas having co-planar but anti-parallel magnetic fields meet. At the contact point, the field is locally annihilated and the magnetic energy can be released into the surrounding plasma. Theory and…

The main subject of my talk is the question: in what kind of astrophysical systems magnetic reconnection is interesting and/or important? To address this question, I first put forward three general criteria for selecting the relevant…

天体物理学 · 物理学 2007-05-23 Dmitri A. Uzdensky

Magnetic reconnection is a leading mechanism for magnetic energy conversion and high-energy non-thermal particle production in a variety of high-energy astrophysical objects, including ones with relativistic ion-electron plasmas (e.g.,…

高能天体物理现象 · 物理学 2014-11-05 Mickaël Melzani , Rolf Walder , Doris Folini , Christophe Winisdoerffer , Jean M. Favre

Recent space based observations of the Sun revealed that magnetic reconnection is ubiquitous in the solar atmosphere, ranging from small scale reconnection (observed as nanoflares) to large scale one (observed as long duration flares or…

太阳与恒星天体物理 · 物理学 2016-07-01 Kazunari Shibata , Shinsuke Takasao