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We present observations and modeling of the magnetic field configuration, morphology, and dynamics of a large-scale, high-latitude filament eruption observed by the Solar Dynamics Observatory. We analyze the 2015 July 9-10 filament eruption…

Solar flares and coronal mass ejections (CMEs) are the most powerful explosions in the Sun. They are major sources of potentially destructive space weather conditions. However, the possible causes of their initiation remain controversial.…

太阳与恒星天体物理 · 物理学 2017-08-16 X. L. Yan , C. W. Jiang , Z. K. Xue , J. C. Wang , E. R. Priest , L. H. Yang , D. F. Kong , W. D. Cao , H. S. Ji

Solar filaments/prominences exhibit rotational motion during different phases of their evolution from their formation to eruption. We have observed the rotational/vortical motion in the photosphere near the ends of ten filaments during…

太阳与恒星天体物理 · 物理学 2014-10-15 Sajal Kumar Dhara , B. Ravindra , Ravinder Kumar Banyal

Solar filaments are magnetic structures often observed in the solar atmosphere and consist of plasma that is cooler and denser than their surroundings. They are visible for days -- and even weeks -- which suggests that they are often in…

An isolated and fast decayed active region (NOAA 9729) was observed when passing through solar disk. There is only one CME related with it that give us a good opportunity to investigate the whole process of the CME. Filament in this active…

太阳与恒星天体物理 · 物理学 2017-03-15 Shangbin Yang , Wenbin Xie , Jihong Liu

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

An unexpected strong geomagnetic storm occurred on 2018 August 26, which was caused by a slow coronal mass ejection (CME) from a gradual eruption of a large quiet-region filament. We investigate the eruption and propagation characteristics…

太阳与恒星天体物理 · 物理学 2019-11-06 Chong Chen , Ying D. Liu , Rui Wang , Xiaowei Zhao , Huidong Hu , Bei Zhu

Combining the high-quality observations from the {\it Solar Dynamics Observatory} (SDO), the Global Oscillation Network Group (GONG), and the Chinese H$\alpha$ Solar Explorer (CHASE), we report a solar coronal jet triggered by the…

太阳与恒星天体物理 · 物理学 2025-10-22 Jiayan Yang , Leping Li , Huadong Chen , Yi Bi , Bo Yang , Junchao Hong , Yan Dong

We investigate two successive flux rope (FR1 and FR2) eruptions resulting in two coronal mass ejections (CMEs) on 2012 January 23. Both FRs appeared as an EUV channel structure in the images of high temperature passbands of the Atmospheric…

太阳与恒星天体物理 · 物理学 2015-06-15 X. Cheng , J. Zhang , M. D. Ding , O. Olmedo , X. D. Sun , Y. Guo , Y. Liu

We report a failed solar filament eruption that involves external magnetic reconnection in a quadrupolar magnetic configuration. The evolution exhibits three kinematic evolution phases: a slow-rise phase, an acceleration phase, and a…

太阳与恒星天体物理 · 物理学 2023-11-30 Yuehong Chen , Xin Cheng , Jun Chen , Yu Dai , Mingde Ding

Coronal mass ejections (CMEs) and coronal jets are two of the best-studied forms of solar eruptions, with the same underlying physics. Previous studies have presented partial eruptions producing coronal jets. We report, for the first time,…

太阳与恒星天体物理 · 物理学 2025-08-26 Abril Sahade , Judith Karpen , Spiro Antiochos

We analyze the observations of EUV loop evolution associated with the filament eruption located at the border of an active region. The event SOL2013-03-16T14:00 was observed with a large difference of view point by the Solar Dynamics…

太阳与恒星天体物理 · 物理学 2021-12-08 Ramesh Chandra , Pascal Demoulin , Pooja Devi , Reetika Joshi , Brigitte Schmieder

The most probable initial magnetic configuration of a CME is a flux rope consisting of twisted field lines which fill the whole volume of a dark coronal cavity. The flux ropes can be in stable equilibrium in the coronal magnetic field for…

太阳与恒星天体物理 · 物理学 2015-06-23 Boris Filippov , Olesya Martsenyuk , Abhishek K. Srivastava , Wahab Uddin

Studying the dynamics of filaments at pre-eruption phase can shed light on the precursor of eruptive events. Such studies in high-resolution (in the order of 0.1") are highly desirable yet very rare so far. In this work, we present a…

太阳与恒星天体物理 · 物理学 2017-06-14 Qin Li , Na Deng , Ju Jing , Haimin Wang

Both observations and simulations suggest that the solar filament eruption is closely related to magnetic flux emergence. It is thought that the eruption is triggered by magnetic reconnection between the filament and the emerging flux.…

太阳与恒星天体物理 · 物理学 2022-08-31 Leping Li , Hardi Peter , Lakshmi Pradeep Chitta , Hongqiang Song , Zhe Xu , Yongyuan Xiang

We investigate the sequence of events leading to the solar X1 flare SOL2014-03-29T17:48. Because of the unprecedented joint observations of an X-flare with the ground-based Dunn Solar Telescope and the spacecraft IRIS, Hinode, RHESSI,…

太阳与恒星天体物理 · 物理学 2015-06-11 Lucia Kleint , Marina Battaglia , Kevin Reardon , Alberto Sainz Dalda , Peter R. Young , Säm Krucker

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

Coronal dimmings, localized regions of reduced emission in the EUV and soft X-rays, are interpreted as density depletions due to mass loss during the CME expansion. They contain crucial information on the early evolution of CMEs low in the…

太阳与恒星天体物理 · 物理学 2018-08-29 Karin Dissauer , Astrid M. Veronig , Manuela Temmer , Tatiana Podladchikova , Kamalam Vanninathan

Coronal implosions - the convergence motion of plasmas and entrained magnetic field in the corona due to a reduction in magnetic pressure - can help to locate and track sites of magnetic energy release or redistribution during solar flares…

太阳与恒星天体物理 · 物理学 2017-01-06 Juntao Wang , P. J. A. Simoes , L. Fletcher , J. K. Thalmann , H. S. Hudson , I. G. Hannah

Failure of a filament eruption caused by magnetic reconnection between the erupting filament and the overlying magnetic field has been previously proposed in numerical simulations. It is, however, rarely observed. In this study, we report…