中文
相关论文

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

200 篇论文

Magnetic reconnection plays a crucial role in large dissipative events in space plasmas, such as solar flares and geomagnetic substorms, but there has been much confusion regarding reconnection onset responsible for the explosive events.…

空间物理 · 物理学 2019-02-06 M. Ugai

A current sheet (CS) is the central structure in the disrupting magnetic configuration during solar eruptions. More than 90\% of the free magnetic energy (the difference between the energy in the non-potential magnetic field and that in the…

太阳与恒星天体物理 · 物理学 2023-09-13 Yuhao Chen , Zhong Liu , Pengfei Chen , David F. Webb , Qi Hao , Jialiang Hu , Guanchong Cheng , Zhixing Mei , Jing Ye , Qian Wang , Jun Lin

Sigmoids are one of the most important precursor structures for solar eruptions. In this Letter, we study a sigmoid eruption on 2010 August 1 with EUV data obtained by the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamic…

太阳与恒星天体物理 · 物理学 2010-12-03 Rui Liu , Chang Liu , Shuo Wang , Na Deng , Haimin Wang

Solar flares are sudden and violent releases of magnetic energy in the solar atmosphere that can be divided in eruptive flares, when plasma is ejected from the solar atmosphere, resulting in a coronal mass ejection (CME), and confined…

太阳与恒星天体物理 · 物理学 2017-05-24 F. P. Zuccarello , R. Chandra , B. Schmieder , G. Aulanier , R. Joshi

We analyze the well observed flare-CME event from October 1, 2011 (SOL2011-10-01T09:18) covering the complete chain of action - from Sun to Earth - for a better understanding of the dynamic evolution of the CME and its embedded magnetic…

太阳与恒星天体物理 · 物理学 2017-07-19 M. Temmer , J. K. Thalmann , K. Dissauer , A. M. Veronig , J. Tschernitz , J. Hinterreiter , L. Rodriguez

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

Solar eruptions are sudden ejections of coronal mass and magnetic fields accompanied by intense energy release. The eruptive structure does not always erupt successfully, but sometimes fails to escape the Sun after initiation. The failure…

太阳与恒星天体物理 · 物理学 2026-05-21 Tingyu Gou , Katharine K. Reeves , Peter R. Young , Astrid M. Veronig , Xingyao Chen , Sijie Yu , Bin Chen , Bin Zhuang

Ellerman bombs (EBs) with significant H$\alpha$ wing emissions and ultraviolet bursts (UV bursts) with strong Si IV emissions are two kinds of small transient brightening events that occur in the low solar atmosphere.We numerically…

太阳与恒星天体物理 · 物理学 2024-02-22 Guanchong Cheng , Lei Ni , Yajie Chen , Jun Lin

Coronal mass ejections (CMEs) and coronal jets are two types of common solar eruptive phenomena, which often independently happen at different spatial scales. In this work, we present a stereoscopic observation of a large-scale CME flux…

太阳与恒星天体物理 · 物理学 2021-04-21 Hechao Chen , Jiayan Yang , Junchao Hong , Haidong Li , Yadan Duan

The rapid and irreversible change of photospheric magnetic fields associated with flares has been confirmed by many recent studies. These studies showed that the photospheric magnetic fields respond to coronal field restructuring and turn…

太阳与恒星天体物理 · 物理学 2012-09-11 Shuo Wang , Chang Liu , Haimin Wang

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

The commonly observed jets provide critical information on the small-scale energy release in the solar atmosphere. We report a near disk-center jet on 2010 July 20, observed by the Solar Dynamics Observatory. In this event, the standard…

太阳与恒星天体物理 · 物理学 2015-05-28 Chang Liu , Na Deng , Rui Liu , Ignacio Ugarte-Urra , Shuo Wang , Haimin Wang

We analyze the structure and evolution of ribbons from the M7.3 SOL2014-04-18T13 flare using ultraviolet (UV) images from IRIS and SDO/AIA, magnetic data from SDO/HMI, hard X-ray (HXR) images from RHESSI, and light curves from Fermi/GBM, in…

太阳与恒星天体物理 · 物理学 2022-03-09 Stephen J. Naus , Jiong Qiu , C. Richard DeVore , Spiro K. Antiochos , Joel T. Dahlin , James F. Drake , Marc Swisdak

Explosive energy release is a common phenomenon occurring in magnetized plasma systems ranging from laboratories, Earth's magnetosphere, the solar corona and astrophysical environments. Its physical explanation is usually attributed to…

太阳与恒星天体物理 · 物理学 2012-03-23 J. Zhang , X. Cheng , M. D. Ding

The photospheric response to solar flares, also known as coronal back reaction, is often observed as sudden flare-induced changes in vector magnetic field and sunspot motions. However, it remains obscure whether evolving flare ribbons, the…

太阳与恒星天体物理 · 物理学 2018-12-19 Chang Liu , Wenda Cao , Jongchul Chae , Kwangsu Ahn , Debi Prasad Choudhary , Jeongwoo Lee , Rui Liu , Na Deng , Jiasheng Wang , Haimin Wang

Magnetic field embedded in a perfectly conducting fluid preserves its topology for all time. Although ionized astrophysical objects, like stars and galactic disks, are almost perfectly conducting, they show indications of changes in…

星系天体物理 · 物理学 2010-03-16 A. Lazarian , G. Kowal , E. Vishniac , K. Kulpa-Dubel , K. Otmianowska-Mazur

Recent studies have revealed that solar jets involving minifilament eruptions may be initiated under the well-known magnetic-breakout mechanism. Before or just at the onset of those jets, there should be a current sheet, where breakout…

太阳与恒星天体物理 · 物理学 2019-04-10 Junchao Hong , Jiayan Yang , Huadong Chen , Yi Bi , Bo Yang , Hechao Chen

Using the multi-wavelength images and the photospheric magnetograms from the \emph{Solar Dynamics Observatory}, we study the flare which was associated by the only one coronal mass ejection (CME) in active region (AR) 12192. The eruption of…

太阳与恒星天体物理 · 物理学 2015-11-06 Xiaohong Li , Shuhong Yang , Huadong Chen , Ting Li , Jun Zhang

Coronal mass ejections (CMEs) and solar flares are the large-scale and most energetic eruptive phenomena in our solar system and able to release a large quantity of plasma and magnetic flux from the solar atmosphere into the solar wind.…

太阳与恒星天体物理 · 物理学 2017-07-13 X. Cheng , Y. Guo , M. D. Ding

The magnetic breakout model explains a variety of solar eruptions, ranging from small-scale jets to large-scale coronal mass ejections (CMEs). Most of our previous studies are focused on jets and CMEs in single null-point topologies. Here,…

太阳与恒星天体物理 · 物理学 2025-09-16 Pankaj Kumar , Judith T. Karpen , Peter F. Wyper , David Lario , Spiro K. Antiochos , C. Richard DeVore