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相关论文: Coronal response to an EUV wave from DEM analysis

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Extreme ultraviolet (EUV) waves are impressive coronal propagating disturbances. They are closely associated with various eruptions, and can used for the global coronal seismology and the acceleration of solar energetic particles. Hence,…

太阳与恒星天体物理 · 物理学 2020-05-27 Ruisheng Zheng , Yao Chen , Bing Wang , Hongqiang Song

We address the nature of EUV waves through direct observations of the formation of a diffuse wave driven by the expansion of a coronal mass ejection (CME) and its subsequent separation from the CME front. The wave and the CME on 2011 June 7…

太阳与恒星天体物理 · 物理学 2015-06-03 X. Cheng , J. Zhang , O. Olmedo , A. Vourlidas , M. D. Ding , Y. Liu

We performed an analysis of the extreme-ultraviolet (EUV) wave event on 2022 March 31. The event originated from active region (AR) 12975 located at N13W52 in the field of view of the Atmospheric imaging Assembly (AIA) and exactly at the…

太阳与恒星天体物理 · 物理学 2024-07-09 Ramesh Chandra , P. F. Chen , Pooja Devi

We select and investigate six global solar extreme-ultraviolet (EUV) wave events using data from the Solar Dynamics Observatory and the Solar and Heliospheric Observatory. These eruptions are all on the limb but recorded as halo coronal…

太阳与恒星天体物理 · 物理学 2024-11-19 Huidong Hu , Bei Zhu , Ying D. Liu , Chong Chen , Rui Wang , Xiaowei Zhao

Coronal mass ejections (CMEs) are often associated with coronal dimmings, i.e. transient dark regions that are most distinctly observed in Extreme Ultra-violet (EUV) wavelengths. Using Atmospheric Imaging Assembly (AIA) data, we apply…

太阳与恒星天体物理 · 物理学 2018-05-02 Kamalam Vanninathan , Astrid M. Veronig , Karin Dissauer , Manuela Temmer

We report on observations of an extreme-ultraviolet (EUV) wave event in the Sun on 2011 January 13 by \emph{Solar Terrestrial Relations Observatory} (\emph{STEREO}) and \emph{Solar Dynamics Observatory} (\emph{SDO}) in quadrature. Both the…

太阳与恒星天体物理 · 物理学 2017-01-18 Weiguo Zong , Yu Dai

Solar extreme ultraviolet (EUV) waves are spectacular propagating disturbances with EUV enhancements in annular shapes in the solar corona. These EUV waves carry critical information about the coronal magnetised plasma that can shed light…

太阳与恒星天体物理 · 物理学 2022-04-20 Ruisheng Zheng , Bing Wang , Liang Zhang , Yao Chen , Robertus Erdelyi

We report the first unambiguous observational evidence in the radio range of the reflection of a coronal shock wave at the boundary of a coronal hole. The event occurred above an active region located at the northwest limb of the Sun and…

太阳与恒星天体物理 · 物理学 2021-07-28 S. Mancuso , A. Bemporad , F. Frassati , D. Barghini , S. Giordano , D. Telloni , C. Taricco

The quiet solar corona consists of myriads of loop-like features, with magnetic fields originating from network and internetwork regions on the solar surface. The continuous interaction between these different magnetic patches leads to…

太阳与恒星天体物理 · 物理学 2021-04-13 L. P. Chitta , H. Peter , P. R. Young

The nature of CME-associated low corona propagating disturbances, 'EUV waves', has been controversial since their discovery by EIT on \textit{SOHO}. The low cadence, single viewpoint EUV images and the lack of simultaneous inner corona…

太阳与恒星天体物理 · 物理学 2015-05-13 S. Patsourakos , A. Vourlidas

We present first observations of a dome-shaped large-scale EUV coronal wave, recorded by the EUVI instrument onboard STEREO-B on January 17, 2010. The main arguments that the observed structure is the wave dome (and not the CME) are: a) the…

太阳与恒星天体物理 · 物理学 2015-05-18 A. M. Veronig , N. Muhr , I. W. Kienreich , M. Temmer , B. Vrsnak

The EUV late phase is the second increase of the irradiance of the warm coronal lines during solar flares, and has a crucial impact on the Earth's ionosphere. In this paper, we report on the extremely energetic EUV late phase of a pair of…

太阳与恒星天体物理 · 物理学 2025-12-10 Ya Wang , Sargam M. Mulay , Lyndsay Fletcher

Coronal waves, significant solar phenomena, act as diagnostic tools for scientists studying solar atmosphere properties. Here, we present a novel observation detailing how a coronal wave event, associated with an X5.0 class flare,…

Context: Long-period intensity pulsations were recently detected in the EUV emission of coronal loops, and have been attributed to cycles of plasma evaporation and condensation driven by thermal non-equilibrium (TNE). Numerical simulations…

太阳与恒星天体物理 · 物理学 2020-02-12 Gabriel Pelouze , Frédéric Auchère , Karine Bocchialini , Clara Froment , Susanna Parenti , Elie Soubrié

X-ray and EUV observations are an important diagnostic of various plasma parameters of the solar atmosphere during solar flares. Soft X-ray and EUV observations often show coronal sources near the top of flaring loops, while hard X-ray…

太阳与恒星天体物理 · 物理学 2015-06-11 Marina Battaglia , Eduard P. Kontar

Extreme-ultraviolet late phase (ELP) refers to the second extreme-ultraviolet (EUV) radiation enhancement observed in certain solar flares, which usually occurs tens of minutes to several hours after the peak of soft X-ray emission. The…

太阳与恒星天体物理 · 物理学 2022-06-22 Jiale Zhang , Bin Chen , Sijie Yu , Hui Tian , Yuqian Wei , Hechao Chen , Guangyu Tan , Yingjie Luo , Xingyao Chen

The nanoflare model of coronal heating is one of the most successful scenarios to explain, within a single framework, the diverse set of coronal observations available with the present instrument resolutions. The model is based on the idea…

太阳与恒星天体物理 · 物理学 2022-10-06 Marcelo López Fuentes , James A. Klimchuk

Coronal waves are large-scale disturbances often driven by coronal mass ejections (CMEs). We investigate a spectacular wave event on 7 March 2012, which is associated with an X5.4 flare (SOL2012-03-07). By using a running center-median…

太阳与恒星天体物理 · 物理学 2020-11-04 Li Feng , Lei Lu , Bernd Inhester , Joseph Plowman , Beili Ying , Marilena Mierla , Matthew J. West , Weiqun Gan

The SDO EUV observations have revealed interesting characteristics of warm coronal emissions, which peak soon after the hot coronal X-ray emissions peak during a flare and then sometimes peak for a second time hours after the X-ray flare…

太阳与恒星天体物理 · 物理学 2015-06-18 Thomas N. Woods

In this study, we present the observations of extreme-ultraviolet (EUV) waves associated with an M6.5 flare on 2013 April 11. The event was observed by Solar Dynamics Observatory (SDO) in different EUV channels. The flare was also…

太阳与恒星天体物理 · 物理学 2019-05-22 Aarti Fulara , Ramesh Chandra , P. F. Chen , Ivan Zhelyazkov , A. K. Srivastava , Wahab Uddin