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Magnetic reconnection is thought to be the driver for many explosive phenomena in the universe. The energy release and particle acceleration during reconnection have been proposed as a mechanism for producing high-energy emissions and…

高能天体物理现象 · 物理学 2015-04-10 Fan Guo , Yi-Hsin Liu , William Daughton , Hui Li

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

Magnetic reconnection with asymmetry in the outflow direction occurs in the Earth's magnetotail, coronal mass ejections, flux cancellation events, astrophysical disks, spheromak merging experiments, and elsewhere in nature and the…

等离子体物理 · 物理学 2010-09-16 N. A. Murphy , C. R. Sovinec , P. A. Cassak

Magnetic reconnection is believed to be the driver of many explosive phenomena in Astrophysics, from solar to gamma-ray flares in magnetars and in the Crab nebula. However, reconnection rates from classic MHD models are far too slow to…

等离子体物理 · 物理学 2019-06-05 Emanuele Papini , Simone Landi , Luca Del Zanna

We show that magnetic reconnection in a magnetically-dominated fast-cooling plasma can naturally produce bright flares accompanied by rotations in the synchrotron polarization vector. With particle-in-cell simulations of reconnection, we…

高能天体物理现象 · 物理学 2020-07-30 David N. Hosking , Lorenzo Sironi

Magnetic reconnection requires the violation of the frozen-in condition which ties gyrating charged particles to the magnetic field inhibiting diffusion. Ongoing reconnection has been identified in near-Earth space as being responsible for…

空间物理 · 物理学 2014-01-24 R. A. Treumann , W. Baumjohann

Magnetic reconnection is a fundamental process that quickly releases magnetic energy stored in a plasma.Identifying, from simulation outputs, where reconnection is taking place is non-trivial and, in general, has to be performed by human…

计算物理 · 物理学 2020-09-09 A. Hu , M. Sisti , F. Finelli , F. Califano , J. Dargent , M. Faganello , E. Camporeale , J. Teunissen

Magnetized turbulence and magnetic reconnection are often invoked to explain the nonthermal emission observed from a wide variety of astrophysical sources. By means of fully-kinetic 2D and 3D PIC simulations, we investigate the interplay…

高能天体物理现象 · 物理学 2019-12-04 Luca Comisso , Lorenzo Sironi

Turbulence and magnetic fields are components of the interstellar medium and are interconnected through plasma processes. In particular, the magnetic flux transport in the presence of magneto-hydrodynamic (MHD) turbulence is an essential…

高能天体物理现象 · 物理学 2025-07-30 C. N. Koshikumo , R. Santos-Lima , M. V. del Valle , E. M. de Gouveia Dal Pino , G. Guerrero , A. Lazarian

The chaotic dynamics of small-scale vorticity plays a key role in understanding and controlling turbulence, with direct implications for energy transfer, mixing, and coherent structure evolution. However, measuring or controlling its…

The current understanding of MHD turbulence envisions turbulent eddies which are anisotropic in all three directions. In the plane perpendicular to the local mean magnetic field, this implies that such eddies become current-sheet-like…

等离子体物理 · 物理学 2017-06-21 N. F. Loureiro , S. Boldyrev

Relativistic magnetic reconnection events can widely exist in magnetized plasmas in astrophysical systems. During this process, oppositely directed magnetic field lines reconnect and release magnetic energy, efficiently accelerating…

高能天体物理现象 · 物理学 2018-08-08 Haocheng Zhang , Xiaocan Li , Fan Guo , Dimitrios Giannios

Blazars are relativistic magnetized plasma outflows from supermassive black holes that point very close to our line of sight. Their emission is nonthermal dominated and highly variable across the entire electromagnetic spectrum.…

高能天体物理现象 · 物理学 2020-10-14 Haocheng Zhang , Xiaocan Li , Dimitrios Giannios , Fan Guo , Yi-Hsin Liu , Lingyi Dong

The definition and measurement of magnetic reconnection in three-dimensional magnetic fields with multiple reconnection sites is a challenging problem, particularly in fields lacking null points. We propose a generalization of the familiar…

等离子体物理 · 物理学 2015-05-28 A. R. Yeates , G. Hornig

Most of the rotational luminosity of a pulsar is carried away by a relativistic magnetised wind in which the matter energy flux is negligible compared to the Poynting flux. Near the equatorial plane of an obliquely rotating pulsar…

天体物理学 · 物理学 2009-06-23 Jerome Petri , Yuri Lyubarsky

Magnetic reconnection is a fundamental physical process converting magnetic energy into not only plasma energy but also particle energy in various astrophysical phenomena. In this letter, we show a unique dataset of a solar flare where…

太阳与恒星天体物理 · 物理学 2022-01-12 Lei Lu , Li Feng , Alexander Warmuth , Astrid M. Veronig , Jing Huang , Siming Liu , Weiqun Gan , Zongjun Ning , Beili Ying , Guannan Gao

MHD Turbulence is a critical component of the current paradigms of star formation, particle transport, magnetic reconnection and evolution of the ISM. Progress on this difficult subject is made via numerical simulations and observational…

星系天体物理 · 物理学 2011-05-06 Blakesley Burkhart , Alex Lazarian

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

Particle acceleration by magnetic reconnection is now recognized as an important process in magnetically dominated regions of galactic and extragalactic black hole sources. This process helps to solve current puzzles specially related to…

The ubiquitous relativistic jet phenomena associated with black holes play a major role in high and very-high-energy (VHE) astrophysics. In particular, observations have demonstrated that blazars show VHE emission with time-variability from…