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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 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

Fast magnetic reconnection powers explosive events throughout the universe, from gamma-ray bursts to solar flares. Despite its importance, the onset of astrophysical fast reconnection is the subject of intense debate and remains an open…

太阳与恒星天体物理 · 物理学 2020-02-07 L. P. Chitta , A. Lazarian

Magnetic-field reconnection is believed to play a fundamental role in magnetized plasma systems throughout the Universe1, including planetary magnetospheres, magnetars and accretion disks around black holes. This letter present extreme…

太阳与恒星天体物理 · 物理学 2015-02-06 Yang Su , Astrid M. Veronig , Gordon D. Holman , Brian R. Dennis , Tongjiang Wang , Manuela Temmer , Weiqun Gan

Magnetic reconnection plays a crucial role in powering solar flares, production of energetic particles, and plasma heating. However, where the magnetic reconnections occur, how and where the released magnetic energy is transported, and how…

太阳与恒星天体物理 · 物理学 2020-09-02 Sijie Yu , Bin Chen , Katharine K. Reeves , Dale E. Gary , Sophie Musset , Gregory D. Fleishman , Gelu M. Nita , Lindsay Glesener

Astrophysical plasmas have the remarkable ability to preserve magnetic topology, which inevitably gives rise to the accumulation of magnetic energy within stressed regions including current sheets. This stored energy is often released…

等离子体物理 · 物理学 2022-02-21 Hantao Ji , William Daughton , Jonathan Jara-Almonte , Ari Le , Adam Stanier , Jongsoo Yoo

Magnetic reconnection, the rearrangement of magnetic field topology, is a fundamental physical process in magnetized plasma systems all over the universe1,2. Its process is difficult to be directly observed. Coronal structures, such as…

太阳与恒星天体物理 · 物理学 2016-09-21 Leping Li , Jun Zhang , Hardi Peter , Eric Priest , Huadong Chen , Lijia Guo , Feng Chen , Duncan Mackay

Magnetic reconnection is a sporadic process responsible for energy release in space and laboratory plasmas. It is believed that the tearing mode instability may be responsible for the onset of reconnection in the magnetotail. However, due…

As a key to undertanding the basic mechanism for fast reconnection in solar flares, plasmoid-induced-reconnection and fractal reconnection are proposed and examined. We first briefly summarize recent solar observations that give us hints on…

天体物理学 · 物理学 2015-06-24 Kazunari Shibata , Syuniti Tanuma

Particle acceleration is one of the most significant features that are ubiquitous among space and cosmic plasmas. It is most prominent during flares in the case of the Sun, with which huge amount of electromagnetic radiation and high-energy…

太阳与恒星天体物理 · 物理学 2014-05-15 Noriyuki Narukage , Masumi Shimojo , Taro Sakao

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

Convection inside the magnetosphere can be regarded as the transfer of magnetic flux and plasma from the magnetotail into the nightside and then convection and drift from there to the dayside. As in many fluid flow situations, the…

空间物理 · 物理学 2007-05-23 Gerald Atkinson

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

The rate of magnetic reconnection is of the utmost importance in a variety of processes because it controls, for example, the rate energy is released in solar flares, the speed of the Dungey convection cycle in Earth's magnetosphere, and…

等离子体物理 · 物理学 2022-04-29 Yi-Hsin Liu , Paul Cassak , Xiaocan Li , Michael Hesse , Shan-Chang Lin , Kevin Genestreti

We argue that magnetic reconnection plays the determining role in many of the various manifestations of solar activity. In particular, it is the trigger mechanism for the most energetic of solar events, coronal mass ejections and eruptive…

天体物理学 · 物理学 2007-05-23 Spiro K. Antiochos , C. Richard DeVore

Plasmoid instability is usually accounted for the onset of fast reconnection events observed in astrophysical plasmas. However, the measured reconnection rate from observations can be one order of magnitude higher than that derived from MHD…

太阳与恒星天体物理 · 物理学 2024-07-03 Abdullah Zafar , Lei Ni , Jun Lin , Ahmad Ali

X-ray activity of Anomalous X-ray Pulsars and Soft Gamma-Ray Repeaters may result from the heating of their magnetic corona by direct currents dissipated by magnetic reconnection. We investigate the possibility that X-ray flares and bursts…

天体物理学 · 物理学 2011-07-18 Maxim Lyutikov

Magnetic reconnection is a universal process that powers explosive energy release events such as solar flares, geomagnetic substorms, and some astrophysical jets. A characteristic feature of magnetic reconnection is the production of fast…

太阳与恒星天体物理 · 物理学 2022-02-15 Chengcai Shen , Bin Chen , Katharine K. Reeves , Sijie Yu , Vanessa Polito , Xiaoyan Xie

Solar flares are accessible to a broad variety of observational methods to see and investigate the {\em magnetic reconnection} phenomenon in high-temperature strongly-magnetized plasma of the solar corona. An analysis of the topological…

太阳与恒星天体物理 · 物理学 2009-01-30 Boris V. Somov

A mechanism for explosive magnetic reconnection is investigated by analyzing the nonlinear evolution of a collisionless tearing mode in a two-fluid model that includes the effects of electron inertia and temperature. These effects…

等离子体物理 · 物理学 2015-12-08 Makoto Hirota , Yuji Hattori , Philip J. Morrison
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