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相关论文: Interaction of a Moreton/EIT wave and a coronal ho…

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We analyse multiwavelength observations of an M2.9/1N flare that occurred in AR NOAA 11112 on 16 October 2010. AIA 211 {\AA} EUV images reveal the presence of a faster coronal wave (decelerating from ~1390 to ~830 km/s) propagating ahead of…

太阳与恒星天体物理 · 物理学 2016-10-26 Pankaj Kumar , K. -S. Cho , P. F. Chen , S. -C. Bong , Sung-Hong Park

With the data from the Atmospheric Imaging Assembly (AIA) and the Helioseismic and Magnetic Imager (HMI) on board the Solar Dynamics Observatory (SDO), we present a magnetic interaction between an isolated coronal hole (CH) and an emerging…

太阳与恒星天体物理 · 物理学 2015-06-17 L. Ma , Z. Q. Qu , X. L. Yan , Z. K. Xue

The present paper discusses results of a statistical study of the characteristics of coronal hole (CH) rotation in order to find connections to the internal rotation of the Sun. The goal is to measure CH rotation rates and study their…

In this work we performed a polarimetric study of a fast and wide coronal mass ejection (CME) observed on 12 July 2012 by the COR1 and COR2 instruments onboard Solar TErrestrial RElations Observatory (STEREO) mission. The CME source region…

太阳与恒星天体物理 · 物理学 2022-07-20 Marilena Mierla , Bernd Inhester , Andrei N. Zhukov , Sergei V. Shestov , Alessandro Bemporad , Philippe Lamy , Serge Koutchmy

Large-scale Extreme-ultraviolet (EUV) waves are frequently observed as an accompanying phenomenon of flares and coronal mass ejections (CMEs). Previous studies mainly focus on EUV waves with single wavefronts that are generally thought to…

太阳与恒星天体物理 · 物理学 2022-05-11 Xinping Zhou , Yuandeng Shen , Ying D. Liu , Huidong Hu , Jiangtao Su , Zehao Tang , Chengrui Zhou , Yadan Duan , Song Tan

Waves are important for the heating of the solar corona and the acceleration of the solar wind. We have examined a long spectral time series of a southern coronal hole observed on the 25th February 1997, with the SUMER spectrometer on-board…

太阳与恒星天体物理 · 物理学 2015-05-13 G. R. Gupta , E. O'Shea , D. Banerjee , M. Popescu , J. G. Doyle

We carried out a multi-wavelength study of a CME and a medium-size 1B/C1.3 flare occurring on 12 May 1997. We present the investigation of magnetic-field variations in the NOAA Active Region 8038 which was observed on the Sun during 7--16…

太阳与恒星天体物理 · 物理学 2011-06-15 Rajmal Jain , Arun K. Awasthi , Babita Chandel , Lokesh Bharti , Y. Hanaoka , A. L. Kiplinger

Quasi-periodic, propagating fast mode magnetosonic waves in the corona were difficult to observe in the past due to relatively low instrument cadences. We report here evidence of such waves directly imaged in EUV by the new SDO AIA…

With the launch of SDO, many EUV waves were observed during solar eruptions. However, the joint observations of Moreton and EUV waves are still relatively rare. We present an event that a small-scale filament eruption simultaneously results…

太阳与恒星天体物理 · 物理学 2020-05-13 Jincheng Wang , Xiaoli Yan , Defang Kong , Zhike Xue , Liheng Yang , Qiaoling Li

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

A set of 23 observations of coronal jet events that occurred in coronal bright points has been analyzed. The focus was on the temporal evolution of the mean brightness before and during coronal jet events. In the absolute majority of the…

I report a coronal wave observed in Fexii, soft X-ray, and Halpha on November 6, 2006, jointly with a CME and a flare to show the spatial and temporal relation of the wave and the CME. I also take advantage of the spectral resolution of the…

太阳与恒星天体物理 · 物理学 2013-10-29 Cécile Delannée

Coronal holes are the coolest and darkest regions of the solar atmosphere, as observed both on the solar disk and above the solar limb. Coronal holes are associated with rapidly expanding open magnetic fields and the acceleration of the…

太阳与恒星天体物理 · 物理学 2011-09-21 D. Banerjee , G. R. Gupta , L. Teriaca

We present EIS/Hinode & SUMER/SoHO joint observations allowing the first spectroscopic detection of accelerating disturbances as recorded with coronal lines in inter-plume and plume regions of a polar coronal hole. From time-distance…

太阳与恒星天体物理 · 物理学 2010-06-28 G. R. Gupta , D. Banerjee , L. Teriaca , S. Imada , S. Solanki

Magnetic field in the solar lower atmosphere can be measured by the use of the Zeeman and Hanle effects. In contrast, the coronal magnetic field well above the solar surface, which directly controls various eruptive phenomena, can not be…

太阳与恒星天体物理 · 物理学 2010-01-05 P. F. Chen

The understanding of the solar magnetic coronal structure is tightly linked to the shape of open field regions, specifically coronal holes. A dynamically evolving coronal hole coincides with the local restructuring of open to closed…

We report quadrature observations of an extreme-ultraviolet (EUV) wave event on 2011 January 27 obtained by the Extreme Ultraviolet Imager (EUVI) onboard \emph{Solar Terrestrial Relations Observatory} (\emph{STEREO}), and the Atmospheric…

太阳与恒星天体物理 · 物理学 2015-06-11 Y. Dai , M. D. Ding , P. F. Chen , J. Zhang

Coronal and interplanetary shock waves produced by coronal mass ejections (CMEs) are major drivers of space-weather phenomena, inducing major changes in the heliospheric radiation environment and directly perturbing the near-Earth…

太阳与恒星天体物理 · 物理学 2023-04-12 Manon Jarry , Alexis P. Rouillard , Illya Plotnikov , Athanasios Kouloumvakos , Alexander Warmuth

A coronal hole formed as a result of a quiet-Sun filament eruption close to the solar disk center on 2014 June 25. We studied this formation using images from the Atmospheric Imaging Assembly (AIA), magnetograms from the Helioseismic and…

A joint campaign of various space-borne and ground-based observatories, comprising the Japanese Hinode mission (HOP~338, 20\,--\,30~September 2017), the GREGOR solar telescope, and the \textit{Vacuum Tower Telescope} (VTT), investigated…