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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

The importance of magnetic reconnection as an energy release mechanism in many solar, stellar, magnetospheric and astrophysical phenomena has long been recognised. Reconnection is the only mechanism by which magnetic fields can globally…

太阳与恒星天体物理 · 物理学 2015-05-13 Clare E. Parnell , Andrew L. Haynes

The outer solar atmosphere, i.e., the corona and the chromosphere, is replete with small energy-release events, which are accompanied by transient brightening and jet-like ejections. These events are considered to be magnetic reconnection…

太阳与恒星天体物理 · 物理学 2015-10-28 T. Shimizu

On the Sun, Doppler shifts of bidirectional outflows from the magnetic-reconnection site have been found only in confined regions through spectroscopic observations. Without spatially resolved spectroscopic observations across an extended…

太阳与恒星天体物理 · 物理学 2022-11-21 Huidong Hu , Ying D. Liu , Lakshmi Pradeep Chitta , Hardi Peter , Mingde Ding

We aim at investigating the formation of jet-like features in the lower solar atmosphere, e.g. chromosphere and transition region, as a result of magnetic reconnection. Magnetic reconnection as occurring at chromospheric and transition…

太阳与恒星天体物理 · 物理学 2015-05-30 J. Y. Ding , M. S. Madjarska , J. G. Doyle , Q. M. Lu , K. Vanninathan , Z. Huang

Magnetic switchbacks are localised polarity reversals in the radial component of the heliospheric magnetic field. Observations from Parker Solar Probe (PSP) have shown that they are a prevalent feature of the near-Sun solar wind. However,…

空间物理 · 物理学 2023-07-19 G. H. H. Suen , C. J. Owen , D. Verscharen , T. S. Horbury , P. Louarn , R. De Marco

Global magnetic field extrapolations are now revealing the huge complexity of the Sun's corona, and in particular the structure of the boundary between open and closed magnetic flux. Moreover, recent developments indicate that magnetic…

太阳与恒星天体物理 · 物理学 2015-05-27 D. I. Pontin , P. F. Wyper

Magnetic reconnection, a change of magnetic field connectivity, is a fundamental physical process in which magnetic energy is released explosively. It is responsible for various eruptive phenomena in the universe. However, this process is…

太阳与恒星天体物理 · 物理学 2015-06-30 J. Q. Sun , X. Cheng , M. D. Ding , Y. Guo , E. R. Priest , C. E. Parnell , S. J. Edwards , J. Zhang , P. F. Chen , C. Fang

Through a direct comparison between numerical simulations in two and three dimensions, we investigate topological effects in reconnection. A simple estimate on increase in reconnection rate in three dimensions by a factor of $\sqrt{2}$,…

太阳与恒星天体物理 · 物理学 2015-06-19 Miljenko Čemeljić , Ruei-Yang Huang

Microflares, one of small-scale solar activities, are believed to be caused by magnetic reconnection. Nevertheless, their three-dimensional (3D) magnetic structures, thermodynamic structures, and physical links to the reconnection have been…

太阳与恒星天体物理 · 物理学 2022-05-18 Z. F. Li , X. Cheng , F. Chen , J. Chen , M. D. Ding

Magnetic reconnection is believed to be the primary mechanism by which non-potential energy stored in coronal magnetic fields is rapidly released during solar eruptive events. Unfortunately, owing to the small spatial scales on which…

太阳与恒星天体物理 · 物理学 2018-09-12 Aidan M. O'Flannagain , Shane A. Maloney , Peter T. Gallagher , Philippa Browning , Jose Refojo

Using the high tempo-spatial resolution H$\alpha$ images observed with the New Vacuum Solar Telescope, we report the solid observational evidence of magnetic reconnection between two sets of small-scale anti-parallel loops with an X-shaped…

太阳与恒星天体物理 · 物理学 2015-06-23 Shuhong Yang , Jun Zhang , Yongyuan Xiang

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

Magnetic reconnection is a complex mechanism that converts magnetic energy into particle kinetic energy and plasma thermal energy in space and astrophysical plasmas. In addition, magnetic reconnection and turbulence appear to be intimately…

等离子体物理 · 物理学 2021-12-22 Rodrigo A. Miranda , Juan A. Valdivia , Abraham C. -L. Chian , Pablo R. Muñoz

Magnetic reconnection is a fundamental process in a plasma that facilitates the release of energy stored in the magnetic field by permitting a change in the magnetic topology. In this article we present a review of the current state of…

太阳与恒星天体物理 · 物理学 2012-07-04 D. I. Pontin

Interchange reconnection is believed to play a significant role in the production of solar jets and solar wind. However, the dynamics of interchange reconnection in the low corona might be more complex than recognized before in higher…

太阳与恒星天体物理 · 物理学 2026-01-28 Yadan Duan , Xiaoli Yan , Junchao Hong , Hechao Chen , Yuhang Gao , Zheng Sun , Zhenyong Hou , Jincheng Wang

Reconnection is the process by which magnetic fields in a conducting fluid change their topology. This process is essential for understanding a wide variety of astrophysical processes, including stellar and galactic dynamos and…

天体物理学 · 物理学 2016-08-30 A. Lazarian , E. Vishniac

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

Magnetic reconnection changes the magnetic field topology and powers explosive events in astrophysical, space and laboratory plasmas. For flares and coronal mass ejections (CMEs) in the solar atmosphere, the standard model predicts the…

太阳与恒星天体物理 · 物理学 2010-10-11 Rui Liu , Jeongwoo Lee , Tongjiang Wang , Guillermo Stenborg , Chang Liu , Haimin Wang

We study the emergence of a toroidal flux tube into the solar atmosphere and its interaction with a pre-existing field of an active region. We investigate the emission of jets as a result of repeated reconnection events between colliding…

太阳与恒星天体物理 · 物理学 2010-03-12 V. Archontis , K. Tsinganos , C. Gontikakis
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