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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 present observations of the diffraction, refraction, and reflection of a global extreme-ultraviolet (EUV) wave propagating in the solar corona. These intriguing phenomena are observed when the wave interacts with two remote active…

太阳与恒星天体物理 · 物理学 2013-08-13 Yuandeng Shen , Yu Liu , Jiangtao Su , Hui Li , Ruijuan Zhao , Zhanjun Tian , Kiyoshi Ichimoto , Kazunari Shibata

We present the observations of an extreme-ultraviolet (EUV) wave, which originated from the active region (AR) NOAA 12887 on 28 October 2021 and its impact on neighbouring loops. The event was observed by the Atmospheric Imaging Assembly…

太阳与恒星天体物理 · 物理学 2022-12-21 Pooja Devi , Ramesh Chandra , Arun Kumar Awasthi , Brigitte Schmieder , Reetika Joshi

Extreme Ultraviolet (EUV) waves have been found for about 15 years. However, significant controversy remains over their physical natures and origins. In this paper, we report an EUV wave that was accompanied by an X1.9 flare and a partial…

太阳与恒星天体物理 · 物理学 2015-06-05 Yuandeng Shen , Yu Liu

We present SDO/AIA observations of the interaction of a global EUV wave on 2011 June 7 with active regions (ARs), coronal holes (CHs) and coronal bright structures. The primary global wave has a three-dimensional dome shape, with…

太阳与恒星天体物理 · 物理学 2015-06-03 Ting Li , Jun Zhang , Shuhong Yang , Wei Liu

In this paper, we present the observations of two successive fast-mode extreme ultraviolet (EUV) wave events observed on 2016 July 23. Both fast-mode waves were observed by the Atmospheric Imaging Assembly (AIA) instrument on board the…

太阳与恒星天体物理 · 物理学 2018-08-22 R. Chandra , P. F. Chen , R. Joshi , B. Joshi , B. Schmieder

We report on the first direct observation of a fast-mode wave propagating along and perpendicular to cool (171 {\AA}) arcade loops observed by the SDO/AIA. The wave was associated with an impulsive/compact flare, near the edge of a sunspot.…

太阳与恒星天体物理 · 物理学 2015-06-24 Pankaj Kumar , D. E. Innes

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 report the first unambiguous quasi-periodic large-scale extreme-ultraviolet (EUV) wave or shock that was detected by the Atmospheric Imaging Assembly on board the Solar Dynamics Observatory. During the whip-like unwinding eruption of a…

太阳与恒星天体物理 · 物理学 2019-03-06 Yuandeng Shen , P. F. Chen , Ying D. Liu , Kazunari Shibata , Zehao Tang , Yu Liu

For the first time, the kinematic evolution of a coronal wave over the entire solar surface is studied. Full Sun maps can be made by combining images from the Solar Terrestrial Relations Observatory satellites, Ahead and Behind, and the…

太阳与恒星天体物理 · 物理学 2015-06-05 Oscar Olmedo , Angelos Vourlidas , Jie Zhang , Xin Cheng

Global extreme ultraviolet (EUV) waves are spectacular traveling disturbances in the solar corona associated with energetic eruptions such as coronal mass ejections (CMEs) and flares. Over the past 15 years, observations from three…

太阳与恒星天体物理 · 物理学 2014-05-07 Wei Liu , Leon Ofman

Context. Solar extreme ultraviolet (EUV) waves are propagating disturbances in the corona, and they usually accompany with various solar eruptions, from large-scale coronal mass ejections to small-scale coronal jets. Aims. Generally, it is…

太阳与恒星天体物理 · 物理学 2023-06-21 Yihan Liu , Ruisheng Zheng , Liang Zhang , Hengyuan Wei , Ze Zhong , Shuhong Yang , Yao Chen

Solar extreme-ultraviolet (EUV) waves generally refer to large-scale disturbances propagating outward from sites of solar eruptions in EUV imaging observations. Using the recent observations from the Atmospheric Imaging Assembly (AIA) on…

太阳与恒星天体物理 · 物理学 2022-11-09 Zheng Sun , Hui Tian , P. F. Chen , Shuo Yao , Zhenyong Hou , Hechao Chen , Linjie Chen

We present two events to study the driving mechanism of extreme-ultraviolet (EUV) waves that are not associated with coronal mass ejections (CMEs), by using high resolution observations taken by the Atmospheric Imaging Assembly (AIA) on…

太阳与恒星天体物理 · 物理学 2018-06-19 Yuandeng Shen , Zehao Tang , Yuhu Miao , Jiangtao Su , Yu Liu

Previous solar observations have shown that coronal loops near 1 MK are difficult to reconcile with simple heating models. These loops have lifetimes that are long relative to a radiative cooling time, suggesting quasi-steady heating. The…

Observations of transition region emission in solar active regions represent a powerful tool for determining the properties of hot coronal loops. In this Letter we present the analysis of new observations of active region moss taken with…

天体物理学 · 物理学 2009-11-13 Harry P. Warren , Amy R. Winebarger , John T. Mariska , George A. Doschek , Hirohisa Hara

Taking advantage of both the high temporal and spatial resolution of the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamics Observatory (SDO), we studied a limb coronal shock wave and its associated extreme ultraviolet (EUV)…

太阳与恒星天体物理 · 物理学 2015-05-28 Suli Ma , John C. Raymond , Leon Golub , Jun Lin , Huadong Chen , Paolo Grigis , Paola Testa , David Long

For the first time, we report a large-scale wave that was observed simultaneously in the photosphere, chromosphere, transition region and low corona layers of the solar atmosphere. Using the high temporal and high spatial resolution…

太阳与恒星天体物理 · 物理学 2015-06-05 Yuandeng Shen , Yu Liu

Strong EUV lineshifts in solar spectra are generally indicative of highly dynamic and explosive events that are easily detected in comparable-wavelength EUV images, with the strongest such line shifts (several 100 km/s) occurring in solar…

太阳与恒星天体物理 · 物理学 2025-12-04 Alphonse C. Sterling , Louise K. Harra , Navdeep K. Panesar , Ronald L. Moore

The detailed observational analysis of a homologous Extreme-ultraviolet (EUV) wave event is presented to study the driving mechanism and the physical property of the EUV waves, combining high resolution data taken by the Solar Dynamics…

太阳与恒星天体物理 · 物理学 2018-07-25 Yuandeng Shen , Yu Liu , Ying D. Liu , Jiangtao Su , Zehao Tang , Yuhu Miao
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