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相关论文: Solar Multiple Eruptions From a Confined Magnetic …

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We investigate the failed partial eruption of a filament system in NOAA AR 12104 on 2014 July 5, using multiwavelength EUV, magnetogram, and H$\alpha$ observations, as well as magnetic field modeling. The filament system consists of two…

太阳与恒星天体物理 · 物理学 2021-12-22 Jialin Chen , Yingna Su , Rui Liu , Bernhard Kliem , Qingmin Zhang , Haisheng Ji , Tie Liu

We report the observations of a moderate but relatively intense geo-effective solar eruption on 2015 November 4 from the peripheral diffusive polarities of active region 12443. We use space-borne Solar Dynamics Observatory and ACE…

太阳与恒星天体物理 · 物理学 2018-08-22 Rui Wang , Ying D. Liu , Huidong Hu , Xiaowei Zhao

Using the observations from the Atmospheric Imaging Assembly (AIA) and Helioseismic and Magnetic Imager (HMI) aboard the Solar Dynamics Observatory (SDO), we investigate six X-class and twenty-nine M-class flares occurring in solar active…

太阳与恒星天体物理 · 物理学 2015-08-06 Huadong Chen , Jun Zhang , Suli Ma , Shuhong Yang , Leping Li , Xin Huang , Junmin Xiao

Filament eruptions occurring at different places within a relatively short time internal, but with a certain physical causal connection are usually known as sympathetic eruption. Studies on sympathetic eruptions are not uncommon. However,…

太阳与恒星天体物理 · 物理学 2020-04-08 Zhiping Song , Yijun Hou , Jun Zhang , Peng Wang

We studied temporal changes of morphological and magnetic properties of a succession of four confined flares followed by an eruptive flare using the high-resolution New Solar Telescope (NST) operating at the Big Bear Solar Observatory…

How filaments form and erupt are topics about which solar researchers have wondered since more than a century and that are still open to debate. We present observations of a filament formation, its failed eruption, and the associated flare…

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…

太阳与恒星天体物理 · 物理学 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

The dynamics of magnetic fields in the Sun's active regions plays a key role in triggering solar eruptions. Studies have shown that changes in the photosphere's magnetic field can destabilize large-scale structure of the corona, leading to…

太阳与恒星天体物理 · 物理学 2025-03-25 Partha Chowdhury , Belur Ravindra , Sanjiv Kumar Tiwari

The negative effective magnetic pressure instability operates on scales encompassing many turbulent eddies and is here discussed in connection with the formation of active regions near the surface layers of the Sun. This instability is…

太阳与恒星天体物理 · 物理学 2013-09-10 Koen Kemel , Axel Brandenburg , Nathan Kleeorin , Dhrubaditya Mitra , Igor Rogachevskii

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

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

Utilizing observations from the New Vacuum Solar Telescope (NVST), Solar Dynamics Observatory (SDO), and Solar Terrestrial Relations Observatory-Ahead (STEREO-A), we investigate the event from two distinct observational perspectives: on the…

太阳与恒星天体物理 · 物理学 2024-01-02 Jincheng Wang , Xiaoli Yan , Qiangwei Cai , Zhike Xue , Liheng Yang , Qiaoling Li , Zhe Xu , Yunfang Cai , Liping Yang , Yang Peng , Xia Sun , Xinsheng Zhang , Yian Zhou

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

The relationship between solar eruption and sunspot rotation has been widely reported, and the underlying mechanism requires to be studied. Here we performed a full 3D MHD simulation of data-constrained approach to study the mechanism of…

太阳与恒星天体物理 · 物理学 2022-10-26 Xinyi Wang , Chaowei Jiang , Xueshang Feng , Aiying Duan , Xinkai Bian

In this paper, we present unique observations of a blowout coronal jet that possibly triggered a two-ribbon confined C1.2 flare in a bipolar solar active region NOAA 12615 on 2016 December 5. The jet activity initiates at…

太阳与恒星天体物理 · 物理学 2017-12-20 Bhuwan Joshi , Julia K. Thalmann , Prabir K. Mitra , Ramesh Chandra , Astrid M. Veronig

A solar active region (AR) is a three-dimensional magnetic structure formed in the convection zone, whose property is fundamentally important for determining the coronal structure and solar activity when emerged. However, our knowledge on…

太阳与恒星天体物理 · 物理学 2013-01-22 Georgios Chintzoglou , Jie Zhang

A magnetic flux rope (FR), hosting hot plasma, is thought to be central to the physics of coronal mass ejection. Such FRs are widely observed with passbands of the Atmospheric Imaging Assembly (AIA) onboard the Solar Dynamics Observatory…

太阳与恒星天体物理 · 物理学 2022-12-14 Leping Li , Hongqiang Song , Hardi Peter , Lakshmi Pradeep Chitta

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 report the evolution of magnetic field and its energy in NOAA active region 11158 over 5 days based on a vector magnetogram series from the Helioseismic and Magnetic Imager (HMI) on board the Solar Dynamic Observatory (SDO). Fast flux…

太阳与恒星天体物理 · 物理学 2016-06-30 Xudong Sun , J. Todd Hoeksema , Yang Liu , Thomas Wiegelmann , Keiji Hayashi , Qingrong Chen , Julia Thalmann

Partial eruptions of solar filaments are the typical representative of solar eruptive behavior diversity. Here we investigate a typical filament partial eruption event and present integrated evidence for configuration of the pre-eruption…