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相关论文: A Reconnecting Current Sheet Imaged in A Solar Fla…

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In the paper by B\'arta et al. (arXive:astro-ph:/1011.4035, 2010) the authors addressed some open questions of the CSHKP scenario of solar flares by means of high-resolution MHD simulations. They focused, in particular, on the problem of…

太阳与恒星天体物理 · 物理学 2011-03-17 Miroslav Bárta , Jörg Büchner , Marian Karlický , Pavel Kotrc

UV bursts and Ellerman bombs are transient brightenings observed in the low solar atmospheres of emerging flux regions. Observations have discovered the cospatial and cotemporal EBs and UV bursts, and their formation mechanisms are still…

太阳与恒星天体物理 · 物理学 2021-02-17 Lei Ni , Yajie Chen , Hardi Peter , Hui Tian , Jun Lin

Solar flares may be the best-known examples of the explosive conversion of magnetic energy into bulk motion, plasma heating, and particle acceleration via magnetic reconnection. The energy source for all flares is the highly sheared…

太阳与恒星天体物理 · 物理学 2022-08-02 Joel T. Dahlin , Spiro K. Antiochos , Jiong Qiu , C. Richard DeVore

Magnetic flux ropes are characterized by coherently twisted magnetic field lines, which are ubiquitous in magnetized plasmas. As the core structure of various eruptive phenomena in the solar atmosphere, flux ropes hold the key to…

太阳与恒星天体物理 · 物理学 2021-06-10 Rui Liu

Solar flares are dramatic events in which magnetic reconnection in the corona leads to heating of plasma to tens of MK and acceleration of particles to high energies. They also centrally involve transport between the corona (where the…

太阳与恒星天体物理 · 物理学 2024-04-23 Alexander J. B. Russell

Collisionless space plasma turbulence can generate reconnecting thin current sheets as suggested by recent results of numerical magnetohydrodynamic simulations. The MMS mission provides the first serious opportunity to check if small…

The present work is our first attempt to understand the role of reconnection in the pulsar magnetosphere. Our discussion is based on the observationaly infered fact that, as the pulsar spins down, the region of closed corotating dipolar…

天体物理学 · 物理学 2009-11-11 Ioannis Contopoulos

Solar coronal mass ejections are the most energetic events in the Solar System. In their standard formation model, a magnetic flux rope builds up into a coronal mass ejection through magnetic reconnection that continually converts…

太阳与恒星天体物理 · 物理学 2023-05-08 Tingyu Gou , Rui Liu , Astrid M. Veronig , Bin Zhuang , Ting Li , Wensi Wang , Mengjiao Xu , Yuming Wang

We propose a new mechanism to explain the radio Arc and threads in the Galactic Center by current sheets produced by local magnetic shears due to interaction of a moving cloud and the vertical field based on three-dimensional…

天体物理学 · 物理学 2015-06-24 Yoshiaki Sofue , Hiromitsu Kigure , Kazunari Shibata

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

Magnetic null has long been recognized as a special structure serving as a preferential site for magnetic reconnection (MR). However, the direct observational study of MR at null-points is largely lacking. Here, we show the observations of…

太阳与恒星天体物理 · 物理学 2016-10-12 J. Q. Sun , J. Zhang , K. Yang , X. Cheng , M. D. Ding

Magnetic reconnection, a plasma process converting magnetic energy to particle kinetic energy, is often invoked to explain magnetic energy releases powering high-energy flares in astrophysical sources including pulsar wind nebulae and black…

高能天体物理现象 · 物理学 2021-12-17 Gregory R. Werner , Dmitri A. Uzdensky

We report the intriguing large-scale dynamic phenomena associated with the M6.5 flare~(SOL2015-06-22T18:23) in NOAA active region 12371, observed by RHESSI, Fermi, and the Atmospheric Image Assembly (AIA) and Magnetic Imager (HMI) on the…

太阳与恒星天体物理 · 物理学 2017-06-28 Ju Jing , Rui Liu , Mark C. M. Cheung , Jeongwoo Lee , Yan Xu , Chang Liu , Chunming Zhu , Haimin Wang

Cosmic rays produced by young stellar objects can potentially alter the ionization structure, heating budget, chemical composition, and accretion activity in circumstellar disks. The inner edges of these disks are truncated by strong…

地球与行星天体物理 · 物理学 2023-08-15 Marco Fatuzzo , Fred C. Adams , Adina D. Feinstein , Darryl Z. Seligman

The twisted local magnetic field at the front or rear regions of the magnetic clouds (MCs) associated with interplanetary coronal mass ejections (ICMEs) is often nearly opposite to the direction of the ambient interplanetary magnetic field…

Solar flare ribbons provide an important clue to the magnetic reconnection process and associated magnetic field topology in the solar corona. We detected a large-scale secondary flare ribbon of a circular shape that developed in…

The interaction between emerging magnetic flux and the pre-existing ambient field has become a "hot" topic for both numerical simulations and high-resolution observations of the solar atmosphere. The appearance of brightenings and surges…

太阳与恒星天体物理 · 物理学 2015-05-19 S. L. Guglielmino , L. R. Bellot Rubio , F. Zuccarello , G. Aulanier , S. Vargas Domínguez , S. Kamio

Solar flares are often associated with coronal eruptions, but there are confined ones without eruption, even for some X-class flares. How such large flares occurred and why they are confined are still not well understood. Here we studied a…

太阳与恒星天体物理 · 物理学 2019-01-23 Peng Zou , Chaowei Jiang , Xueshang Feng , Pingbing Zuo , Yi Wang , Fengsi Wei

UV bursts are transients in the solar atmosphere with an increased impulsive emission in the extreme UV lasting for one to several tens of minutes. They often show spectral profiles indicative of a bi-directional outflow in response to…

太阳与恒星天体物理 · 物理学 2019-07-31 H. Peter , Y. -M. Huang , L. P. Chitta , P. R. Young

We investigate the occurrence of slipping magnetic reconnection, chromospheric evaporation, and coronal loop dynamics in the 2014 September 10 X-class flare. The slipping reconnection is found to be present throughout the flare from its…