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Turbulent reconnection allows fast magnetic reconnection of astrophysical magnetic fields. This entails numerous astrophysical implications and opens new ways to approach long standing problems. I briefly discuss a model of turbulent…

天体物理学 · 物理学 2009-11-11 A. Lazarian

A 2.5-dimensional magnetohydrodynamics simulation analysis of the energy release for three different reconnection regimes is presented. The system under investigation consists in a current-sheet located in a medium with a strong density…

太阳与恒星天体物理 · 物理学 2011-02-24 Lapo Bettarini , Giovanni Lapenta

Realistic astrophysical environments are turbulent due to the extremely high Reynolds numbers. Therefore, the theories of reconnection intended for describing astrophysical reconnection should not ignore the effects of turbulence on…

高能天体物理现象 · 物理学 2016-03-09 A. Lazarian , G. Kowal , M. Takamoto , E. M. de Gouveia Dal Pino , J. Cho

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

A statistical relationship between magnetic reconnection, current sheets and intermittent turbulence in the solar wind is reported for the first time using in-situ measurements from the Wind spacecraft at 1 AU. We identify intermittency as…

空间物理 · 物理学 2015-06-19 K. T. Osman , W. H. Matthaeus , J. T. Gosling , A. Greco , S. Servidio , B. Hnat , S. C. Chapman , T. D. Phan

Magnetic reconnection can develop spontaneously via the tearing instability, often invoked to explain disruptive instabilities in fusion devices, solar flares, the generation of periodic density disturbances at the tip of helmet streamers,…

等离子体物理 · 物理学 2026-03-04 Faisal Sayed , Anna Tenerani , Richard Fitzpatrick

Solar flares can release coronal magnetic energy explosively and may impact the safety of near-earth space environments. Their structures and properties on macroscale have been interpreted successfully by the generally-accepted…

太阳与恒星天体物理 · 物理学 2023-09-11 Yulei Wang , Xin Cheng , Mingde Ding , Zhaoyuan Liu , Jian Liu , Xiaojue Zhu

The linear theory for rotating compressible convection in a plane layer geometry is presented for the astrophysically-relevant case of low Prandtl number gases. When the rotation rate of the system is large, the flow remains geostrophically…

地球物理 · 物理学 2015-03-02 Michael A. Calkins , Keith Julien , Philippe Marti

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 in the low atmosphere, e.g. chromosphere, is investigated in various physical environments. Its implications for the origination of explosive events (small--scale jets) are discussed. A 2.5-dimensional resistive…

太阳与恒星天体物理 · 物理学 2015-05-14 J. Y. Ding , M. S. Madjarska , J. G. Doyle , Q. M. Lu

The important characteristic of turbulent reconnection is that it combines large scale magnetic disturbances $(\delta B/B \sim 1)$ with randomly distributed Unstable Current Sheets (UCSs). Many well known non linear MHD structures (strong…

高能天体物理现象 · 物理学 2018-01-24 Theophilos Pisokas , Loukas Vlahos , Heinz Isliker

Oscillatory magnetic reconnection is a periodic magnetic reconnection process, during which the current sheet's orientation and the magnetic connections change periodically. This periodic variation is generally considered to originate from…

太阳与恒星天体物理 · 物理学 2025-06-02 Yifu Wang , Lei Ni , Guanchong Cheng , Jialiang Hu , Yuhao Chen , Abdullah Zafar

Our numerical simulations show that the reconnection of magnetic field becomes fast in the presence of weak turbulence in the way consistent with the Lazarian and Vishniac (1999) model of fast reconnection. We trace particles within our…

星系天体物理 · 物理学 2015-05-18 A. Lazarian , G. Kowal , E. Vishniac , E. de Gouveia dal Pino

We review the basic concepts of magnetic reconnection and propose a general framework for the astrophysical reconnection at large scales. Magnetic reconnection is the rearrangement of magnetic field topology. The conventional Sweet-Parker…

高能天体物理现象 · 物理学 2018-06-18 Amir Jafari , Ethan Vishniac

We consider the possibility that cosmic magnetic field, instead of being uniformly distributed, is strongly correlated with the large scale structure of the universe. Then, the observed rotational measure of extra-galactic radio sources…

天体物理学 · 物理学 2011-07-19 Dongsu Ryu , Hyesung Kang , Peter L. Biermann

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

In solar atmosphere, magnetic reconnection alters the topological connectivity, and magnetic energy is released. However, the length change of the reconnecting structures has rarely been reported. To identify the evolution of the…

太阳与恒星天体物理 · 物理学 2025-12-18 Jun Zhang , Tao Ding , Yulei Wang

Simulations of relativistic plasmas traditionally focus on the dynamics of two-species mixtures of charged particles under the influence of external magnetic fields and those generated by particle currents. However, the extreme conditions…

Magnetic reconnection is a ubiquitous plasma process that transforms magnetic energy into particle energy during eruptive events throughout the universe. Reconnection not only converts energy during solar flares and geomagnetic substorms…

The current efforts to fabricate non-volatile magnetic recording media with a high areal density is deteriorated by the increasing temporal instability of the stored information. If the stored energy per magnetic particle competes with the…

材料科学 · 物理学 2009-10-31 P. J. Jensen