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Homologous flares are flares that occur repetitively in the same active region, with similar structure and morphology. A series of at least eight homologous flares occurred in active region NOAA 11237 over 16 - 17 June 2011. A nearby…

Solar and Stellar Astrophysics · Physics 2015-09-23 Navdeep K. Panesar , Alphonse C. Sterling , Davina E. Innes , Ronald L. Moore

Coronal mass ejections (CMEs) were discovered in the early 1970s when space-borne coronagraphs revealed that eruptions of plasma are ejected from the Sun. Today, it is known that the Sun produces eruptive flares, filament eruptions, coronal…

Solar and Stellar Astrophysics · Physics 2018-03-14 Lucie Green , Tibor Torok , Bojan Vrsnak , Ward Manchester , Astrid Veronig

The eruption of solar filaments, also known as prominences appearing off-limb, is a common phenomenon in the solar atmosphere. It ejects massive plasma and high-energy particles into interplanetary space, disturbing the solar-terrestrial…

Solar and Stellar Astrophysics · Physics 2024-01-31 Ye Qiu , Chuan Li , Yang Guo , Zhen Li , Mingde Ding , Linggao Kong

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…

Solar and Stellar Astrophysics · Physics 2025-10-22 Jiayan Yang , Leping Li , Huadong Chen , Yi Bi , Bo Yang , Junchao Hong , Yan Dong

We investigate the initiation and early evolution of 12 solar eruptions, including six active region hot channel and six quiescent filament eruptions, which were well observed by the \textsl{Solar Dynamics Observatory}, as well as by the…

Solar and Stellar Astrophysics · Physics 2020-05-20 X. Cheng , J. Zhang , B. Kliem , T. {Török} , C. Xing , Z. J. Zhou , B. Inhester , M. D. Ding

On 2012 July 11, two solar filaments were observed in the northeast of the solar disk and their eruptions due to the interaction between them are studied by using the data from the Solar Dynamics Observatory (SDO), Solar TErrestrial…

Solar and Stellar Astrophysics · Physics 2015-06-22 Z. K. Xue , X. L. Yan , Z. Q. Qu , C. L. Xu , L. Zhao

The magnetic breakout model has been widely used to explain solar eruptive activities. Here, we apply it to explain successive filament eruptions occurred in a quadrupolar magnetic source region. Based on the high temporal and spatial…

Solar and Stellar Astrophysics · Physics 2014-01-09 Yuandeng Shen

We present observations of a failed eruption of a magnetic flux rope recorded during the M6.2 flare of 14 July 2004. The observations were mainly made with TRACE 171 {\AA} and 1600 {\AA} filters. The flare was accompanied by a…

Solar and Stellar Astrophysics · Physics 2015-05-27 Tomasz Mrozek

Magnetic flux emergence is traditionally considered a key trigger of solar filament eruptions; however, its role in suppressing filament eruptions remains less understood. Using multi-wavelength observations from the Solar Dynamics…

Solar and Stellar Astrophysics · Physics 2025-05-26 Chengrui Zhou , Yuandeng Shen , Chun Xia , Hao Liang , Zehao Tang , Dongxu Liu , Surui Yao

Filament eruptions often result in flares and coronal mass ejections (CMEs). Most studies attribute the filament eruptions to their instabilities or magnetic reconnection. In this study, we report a unique observation of a filament eruption…

Solar and Stellar Astrophysics · Physics 2024-05-24 Yongliang Song , Jiangtao Su , Qingmin Zhang , Mei Zhang , Yuanyong Deng , Xianyong Bai , Suo Liu , Xiao Yang , Jie Chen , Haiqing Xu , Kaifan Ji , Ziyao Hu

Mass drainage is frequently observed in solar filaments. During filament eruptions, falling material most likely flows along magnetic field lines, which may provide important clues for the magnetic structures of filaments. Here we study…

Solar and Stellar Astrophysics · Physics 2025-07-22 Yidian Wu , Rui Liu , Runbin Luo , Wensi Wang

The unpredictability of solar filament eruptions presents major challenges for forecasting space weather, as such eruptions frequently drive coronal mass ejections (CMEs) that impact the heliosphere. While nearby flux emergence is often…

Solar filaments are cool and dense plasma structures suspended in the solar corona against gravity. We present observations of a quiescent filament eruption that occurs on 13 July 2015. The eruption is associated with a two-ribbon GOES B8.9…

We present the observation of a major solar eruption that is associated with fast sunspot rotation. The event includes a sigmoidal filament eruption, a coronal mass ejection, and a GOES X2.1 flare from NOAA active region 11283. The filament…

Solar and Stellar Astrophysics · Physics 2015-06-18 Guiping Ruan , Yao Chen , Shuo Wang , Hongqi Zhang , Gang Li , Ju Jing , Jiangtao Su , Xing Li , Haiqing Xu , Guohui Du , Haimin Wang

Context. Prominence eruptions provide key observations to understand the launch of coronal mass ejections as their cold plasma traces a part of the unstable magnetic configuration. Aims. We select a well observed case to derive…

Solar and Stellar Astrophysics · Physics 2021-03-24 Pooja Devi , Pascal Démoulin , Ramesh Chandra , Reetika Joshi , Brigitte Schmieder , Bhuwan Joshi

In the implosion conjecture, coronal loops contract as the result of magnetic energy release in solar eruptions and flares. However, after almost two decades, observations of this phenomenon are still rare, and most of previous reports are…

Solar and Stellar Astrophysics · Physics 2018-06-06 Juntao Wang , P. J. A. Simoes , L. Fletcher

The dynamic properties of flare ribbons and the often associated filament eruptions can provide crucial information on the flaring coronal magnetic field. This Letter analyzes the GOES-class X1.0 flare on 2014 March 29…

Solar and Stellar Astrophysics · Physics 2015-10-21 Chang Liu , Na Deng , Rui Liu , Jeongwoo Lee , Etienne Pariat , Thomas Wiegelmann , Yang Liu , Lucia Kleint , Haimin Wang

Solar eruptions are explosive disruption of coronal magnetic fields, and often launch coronal mass ejections into the interplanetary space. Intriguingly, many solar eruptions fail to escape from the Sun, and the prevailing theory for such…

Solar and Stellar Astrophysics · Physics 2023-08-01 Chaowei Jiang , Aiying Duan , Peng Zou , Zhenjun Zhou , Xinkai Bian , Xueshang Feng , Pingbing Zuo , Yi Wang

Filament eruption is a common phenomenon in solar activity, but the triggering mechanism is not well understood. We focus our study on a filament eruption located in a complex nest of three active regions close to a coronal hole. The…

Solar and Stellar Astrophysics · Physics 2024-06-04 Y. Liu , G. P. Ruan , B. Schmieder , J. H. Guo , Y. Chen , R. S. Zheng , J. T. Su , B. Wang

Solar prominences (or filaments) are cooler and denser plasma suspended in the much hotter and rarefied solar corona. When viewed on the solar disc filament barbs or feet protrude laterally from filament spine. When observed at the limb of…

Solar and Stellar Astrophysics · Physics 2025-09-25 Huadong Chen , Chun Xia , Suli Ma , Yingna Su , Guiping Zhou , Eric Priest , Lyndsay Fletcher , Yuandeng Shen , Weining Tu , Wei Wang , Jun Zhang