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The nonthermal particle acceleration during magnetic reconnection remains a fundamental topic in several astrophysical phenomena, such as solar flares, pulsar wind, magnetars, etc, for more than half a century, and one of the unresolved…

高能天体物理现象 · 物理学 2022-04-15 Masahiro Hoshino

Magnetic reconnection plays a crucial role in the energy release process for different kinds of solar eruptions and activities. The rapid solar eruption requires a fast reconnection model. Plasmoid instability in the reconnecting current…

太阳与恒星天体物理 · 物理学 2024-05-01 Guanchong Cheng , Lei Ni , Zehao Tang , Yajie Chen , Yuhao Chen , Jialiang Hu , Jun Lin

Magnetic reconnection is a fundamental plasma process associated with conversion of the embedded magnetic field energy into kinetic and thermal plasma energy, via bulk acceleration and Ohmic dissipation. In many high-energy astrophysical…

等离子体物理 · 物理学 2018-05-09 Longqing Yi , Baifei Shen , Alexander Pukhov , Tünde Fülöp

Dynamics of the magnetospheric plasma configuration intrinsically features intermittent slow and fast phases. The fast transition is a nonlinear process, loss of equilibrium which ends up the slow quasi-static evolution. The process is…

等离子体物理 · 物理学 2013-02-13 Alexey Kropotkin

There is growing evidence that when magnetic reconnection occurs in high Lundquist number plasmas such as in the Solar Corona or the Earth's Magnetosphere it does so within a fragmented, rather than a smooth current layer. Within the extent…

太阳与恒星天体物理 · 物理学 2016-07-12 Peter F. Wyper , Michael Hesse

We develop a three-dimensional kinetic model of the solar transition region and corona in which the plasma above the chromosphere is collisionless and embedded in a uniform magnetic field. Heating occurs intermittently at discrete locations…

太阳与恒星天体物理 · 物理学 2026-01-14 Luca Barbieri , Pascal Démoulin

Intensity bursts in ultraviolet (UV) to X-ray wavelengths and plasma jets are typical signatures of magnetic reconnection and the associated impulsive heating of the solar atmospheric plasma. To gain new insights into the process,…

太阳与恒星天体物理 · 物理学 2021-12-15 L. P. Chitta , S. K. Solanki , H. Peter , R. Aznar Cuadrado , L. Teriaca , U. Schühle , F. Auchère , D. Berghmans , E. Kraaikamp , S. Gissot , C. Verbeeck

Accreting black holes in galactic X-ray sources are surrounded by hot plasma. The innermost part of these systems is likely a corona with different temperatures for ions and electrons. In the so-called low-hard state, hot electrons…

高能天体物理现象 · 物理学 2015-05-19 G. E. Romero , F. L. Vieyro , G. S. Vila

Magnetic reconnection is a fundamental plasma process that plays a critical role not only in energy release in the solar atmosphere, but also in fusion, astrophysical, and other space plasma environments. One of the challenges in explaining…

太阳与恒星天体物理 · 物理学 2020-10-14 L. -J. Guo , B. De Pontieu , Y. -M. Huang , H. Peter , A. Bhattacharjee

Magnetic reconnection in the quiet Sun is a phenomenon that is consistently observed, and it has recently become feasible to simulate via 3D numerical models of realistically stratified and convection-driven reconnection. We aim to…

太阳与恒星天体物理 · 物理学 2022-12-21 Rebecca Robinson , Mats Carlsson , Guillaume Aulanier

Re-analysis of some archival X-ray data of black hole binaries in soft spectral states is presented. Results of detailed spectral fitting, including proper physical description of the X-ray reprocessed component, indicate that in most cases…

天体物理学 · 物理学 2007-05-23 Piotr T. Zycki

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

Stellar mass black holes in X-ray binaries (XRBs) are known to display different states characterized by different spectral and timing properties, understood in the framework of a hot corona coexisting with a thin accretion disk whose inner…

高能天体物理现象 · 物理学 2024-04-29 Rodrigo Nemmen , Artur Vemado , Ivan Almeida , Javier Garcia , Pedro Motta

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

Magnetic reconnection in the solar corona is thought to be unstable to the formation of multiple interacting plasmoids, and previous studies have shown that plasmoid dynamics can trigger MHD waves of different modes propagating outward from…

太阳与恒星天体物理 · 物理学 2018-10-25 Elena Provornikova , J. Martin Laming , Vyacheslav S. Lukin

Spinning black holes store rotational energy that can be extracted. When a black hole is immersed in an externally supplied magnetic field, reconnection of magnetic field lines within the ergosphere can generate negative energy (relative to…

高能天体物理现象 · 物理学 2021-01-14 Luca Comisso , Felipe A. Asenjo

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.…

Relativistic magnetic reconnection studies have focused on symmetric configurations so far, where the upstream plasma has identical properties on each side of the layer. The boundary layer between a relativistic jet and an accretion flow…

高能天体物理现象 · 物理学 2024-09-23 Enzo Figueiredo , Benoît Cerutti , John Mehlhaff , Nicolas Scepi

First results are presented from kinetic numerical simulations of relativistic collisionless magnetic reconnection in pair plasma that include radiation reaction from both synchrotron and inverse Compton (IC) processes, motivated by…

高能天体物理现象 · 物理学 2018-07-18 Krzysztof Nalewajko , Yajie Yuan , Martyna Chruślińska

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