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相关论文: Filament eruption by multiple reconnections

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Filaments are special plasma phenomena embedded in the solar atmosphere, characterized by unique thermodynamic properties and magnetic structures. Magnetohydrodynamic (MHD) simulations are useful to investigate the eruption mechanisms of…

太阳与恒星天体物理 · 物理学 2025-04-22 Yihua Li , Yang Guo , Jinhan Guo , M. D. Ding , Chun Xia , Rony Keppens

With the launch of SDO, many EUV waves were observed during solar eruptions. However, the joint observations of Moreton and EUV waves are still relatively rare. We present an event that a small-scale filament eruption simultaneously results…

太阳与恒星天体物理 · 物理学 2020-05-13 Jincheng Wang , Xiaoli Yan , Defang Kong , Zhike Xue , Liheng Yang , Qiaoling Li

We analyze multi-spacecraft observations of a giant filament eruption that occurred during 26 and 27 September 2009. The filament eruption was associated with a relatively slow coronal mass ejection (CME). The filament consisted of a large…

太阳与恒星天体物理 · 物理学 2015-06-11 Sanjay Gosain , Brigitte Schmieder , Guy Artzner , Sergei Bogachev , Tibor Torok

Using high spatial and temporal data from the New Vacuum Solar Telescope (NVST) and the Solar Dynamics Observatory (SDO), we present unambiguous observations of recurrent two-sided loop jets caused by magnetic reconnection between erupting…

太阳与恒星天体物理 · 物理学 2020-01-08 Bo Yang , Jiayan Yang , Yi Bi , Zhe Xu , Junchao Hong , Haidong Li , Hechao Chen

Sympathetic eruptions of two solar filaments have been studied for several decades, but the detailed physical process through which one erupting filament triggers another is still under debate. Here we investigate a sympathetic event…

太阳与恒星天体物理 · 物理学 2020-08-26 Y. J. Hou , T. Li , Z. P. Song , J. Zhang

Coronal jets are the captivating eruptions which are often found in the solar atmosphere, and primarily formed due to magnetic reconnection. Despite their short-lived nature and lower energy compared to many other eruptive events, e.g.…

太阳与恒星天体物理 · 物理学 2024-09-06 Sushree S Nayak , Samrat Sen , Arpit Kumar Shrivastav , R. Bhattacharyya , P. S. Athiray

We report a study of a compound solar eruption that was associated with two consecutively erupting magnetic structures and correspondingly two distinct peaks, during impulsive phase, of an M-class flare (M8.5). Simultaneous multi-viewpoint…

太阳与恒星天体物理 · 物理学 2018-07-03 Suman K. Dhakal , Georgios Chintzoglou , Jie Zhang

Using the high-quality observations of the Solar Dynamics Observatory, we present the interaction of two filaments (F1 and F2) in a long filament channel associated with twin coronal mass ejections (CMEs) on 2016 January 26. Before the…

太阳与恒星天体物理 · 物理学 2017-02-22 Ruisheng Zheng , Qingmin Zhang , Yao Chen , Bing Wang , Guohui Du , Chuanyang Li , Kai Yang

We present multi-wavelength analysis of an eruption event that occurred in Active Region (AR) NOAA 11093 on 7 August 2010, using data obtained from SDO, STEREO, RHESSI and GONG H$\alpha$ network telescope. From these observations, we…

太阳与恒星天体物理 · 物理学 2015-05-27 P. Vemareddy , R. A. Maurya , A. Ambastha

We make a comparative analysis for two filaments that showed quite different activation in response to the flux emergence within the filament channels. The observations from the Solar Dynamics Observatory (SDO) and Global Oscillation…

太阳与恒星天体物理 · 物理学 2015-08-06 Ting Li , Jun Zhang , Haisheng Ji

Large-amplitude oscillations (LAOs) are often detected in filaments. Using multiwavelength observations, their origin can be traced back to the interaction with eruptions and jets. We present two different case studies as observational…

太阳与恒星天体物理 · 物理学 2023-03-29 Reetika Joshi , Manuel Luna , Brigitte Schmieder , Fernando Moreno-Insertis , Ramesh Chandra

In solar filament formation mechanisms, magnetic reconnection between two sets of sheared arcades forms helical structures of the filament with numerous magnetic dips, and cooling and condensation of plasma trapped inside the helical…

太阳与恒星天体物理 · 物理学 2021-10-04 Leping Li , Hardi Peter , Lakshmi Pradeep Chitta , Hongqiang Song

Aims: We investigate the formation of flux ropes in a flux emergence region and their rise into the outer atmosphere of the Sun. Methods: We perform 3D numerical experiments solving the time-dependent and resistive MHD equations. Results: A…

天体物理学 · 物理学 2009-11-13 V. Archontis , T. Torok

The eruptions of solar filaments often show rotational motion about their rising direction, but it remains elusive what mechanism governs such rotation and how the rotation is related to the initial morphology of the pre-eruptive filament…

太阳与恒星天体物理 · 物理学 2022-03-14 Zhenjun Zhou , Chaowei Jiang , Rui Liu , Yuming Wang , Lijuan Liu , Jun Cui

Eruptions of filaments are defined by different parameters, specially, sigmoid handedness and direction of the eruption, which are important parameters for forecasting the geoeffectiveness of consequent interplanetary coronal mass ejection…

太阳与恒星天体物理 · 物理学 2025-11-26 Brigitte Schmieder , Anwesha Maharana , Jin Han Guo , Luis Linan , Stefaan Poedts

We performed a detailed analysis of the magnetic structure and asymmetric eruption of a large (about 500 Mm) inverse S-shaped filament partially located in AR 13229 on February 24, 2023. We linked the filament's pre-eruptive magnetic…

太阳与恒星天体物理 · 物理学 2025-08-26 Stefan Purkhart , Astrid M. Veronig , Robert Jarolim , Karin Dissauer , Julia K. Thalmann

The disintegration of solar filaments via mass drainage is a frequently observed phenomenon during a variety of filament activities. It is generally considered that the draining of dense filament material is directed by both gravity and…

太阳与恒星天体物理 · 物理学 2018-03-28 Rui Liu , Jun Chen , Yuming Wang

The Sun's atmosphere is frequently disrupted by coronal mass ejections (CMEs), coupled with flares and energetic particles. In the standard picture, the coupling is explained by magnetic reconnection at a vertical current sheet connecting…

太阳与恒星天体物理 · 物理学 2019-03-11 Tingyu Gou , Rui Liu , Bernhard Kliem , Yuming Wang , Astrid M. Veronig

We present the first observation of a solar filament formed by magnetic reconnection and associated chromospheric evaporation and subsequent coronal condensation. Driven by shearing motion during flux emergence, a sequential tether-cutting…

太阳与恒星天体物理 · 物理学 2021-11-17 Bo Yang , Jiayan Yang , Yi Bi , Junchao Hong , Zhe Xu

The orientation, chirality, and dynamics of solar eruptive filaments is a key to understanding the magnetic field of coronal mass ejections (CMEs) and therefore to predicting the geoeffectiveness of CMEs arriving at Earth. However,…

太阳与恒星天体物理 · 物理学 2020-03-25 Zhenjun Zhou , Rui Liu , Xing Cheng , Chaowei Jiang , Yuming Wang , Lijuan Liu , Jun Cui