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"EIT waves" are a globally propagating wavelike phenomenon. They were often interpreted as a fast-mode magnetoacoustic wave in the corona, despite various discrepancies between the fast-mode wave model and observations. To reconcile these…

太阳与恒星天体物理 · 物理学 2011-04-18 P. F. Chen , Y. Wu

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

The kinematics of a globally propagating disturbance (also known as an ``EIT wave") is discussed using Extreme UltraViolet Imager (EUVI) data Solar Terrestrial Relations Observatory (STEREO). We show for the first time that an impulsively…

天体物理学 · 物理学 2009-11-13 David M. Long , Peter T. Gallagher , R. T. James McAteer , D. Shaun Bloomfield

We present the first unambiguous detection of quasi-periodic wave trains within the broad pulse of a global EUV wave (so-called "EIT wave") occurring on the limb. These wave trains, running ahead of the lateral CME front of 2-4 times…

太阳与恒星天体物理 · 物理学 2012-08-17 Wei Liu , Leon Ofman , Nariaki V. Nitta , Markus J. Aschwanden , Carolus J. Schrijver , Alan M. Title , Theodore D. Tarbell

We report a large-scale coronal wave (so-called "EIT wave") observed with high cadence by EUVI onboard STEREO in association with the GOES B9.5 flare and double CME event on 19 May 2007. The EUVI instruments provide us with the…

天体物理学 · 物理学 2009-11-13 Astrid M. Veronig , Manuela Temmer , Bojan Vrsnak

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

In this study, we investigate an extreme ultraviolet (EUV) wave event on 2010 February 11, which occurred as a limb event from the Earth viewpoint and a disk event from the STEREO--B viewpoint. We use the data obtained by the Atmospheric…

太阳与恒星天体物理 · 物理学 2021-09-22 Ramesh Chandra , P. F. Chen , Pooja Devi , Reetika Joshi , Brigette Schmieder , Yong-Jae Moon Wahab Uddin

After the {\em Solar and Heliospheric Observatory} ({\em SOHO}) was launched in 1996, the aboard Extreme Ultraviolet Imaging Telescope (EIT) observed a global coronal wave phenomenon, which was initially named "EIT wave" after the…

太阳与恒星天体物理 · 物理学 2016-04-28 P. F. Chen

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

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 "EIT waves" appear as EUV bright fronts propagating across a significant part of the solar disk. The intriguing phenomenon provoked continuing debates on their nature and their relation with coronal mass ejections (CMEs). In this…

太阳与恒星天体物理 · 物理学 2011-08-29 P. F. Chen , C. Fang

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

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

For almost 20 years the physical nature of globally propagating waves in the solar corona (commonly called "EIT waves") has been controversial and subject to debate. Additional theories have been proposed over the years to explain…

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 present the first observations of a global coronal wave ("EIT wave") from the two Solar Terrestrial Relations Observatory (STEREO) satellites in quadra- ture. The wave's initiation site was at the disk center in STEREO-B and precisely on…

太阳与恒星天体物理 · 物理学 2015-05-14 I. W. Kienreich , M. Temmer , A. M. Veronig

On 17 January 2010, STEREO-B observed in extreme ultraviolet (EUV) and white light a large-scale dome-shaped expanding coronal transient with perfectly connected off-limb and on-disk signatures. Veronig et al. (2010, ApJL 716, 57) concluded…

太阳与恒星天体物理 · 物理学 2015-03-19 V. V. Grechnev , A. N. Afanasyev , A. M. Uralov , I. M. Chertok , M. V. Eselevich , V. G. Eselevich , G. V. Rudenko , Y. Kubo

Freely-propagating global waves in the solar atmosphere are commonly observed using Extreme UltraViolet passbands (EUV or "EIT waves"), and less regularly in H-alpha (Moreton-Ramsey waves). Despite decades of research, joint observations of…

太阳与恒星天体物理 · 物理学 2019-09-11 David M. Long , Jack Jenkins , Gherardo Valori

We investigate the high-speed ($v >$ 1000 km s$^{-1}$) extreme-ultraviolet (EUV) wave associated with an X1.2 flare and coronal mass ejection (CME) from NOAA active region 11283 on 2011 September 6 (SOL2011-09-06T22:12). This EUV wave…

太阳与恒星天体物理 · 物理学 2016-10-26 Karin Dissauer , Manuela Temmer , Astrid M. Veronig , Kamalam Vanninathan , Jasmina Magdalenić

EIT waves are a wavelike phenomenon propagating outward from the coronal mass ejection (CME) source region, with expanding dimmings following behind. We present a spectroscopic study of an EIT wave/dimming event observed by Hinode/EIS.…

太阳与恒星天体物理 · 物理学 2010-09-17 F. Chen , M. D. Ding , P. F. Chen
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