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Coronal mass ejections (CMEs) are often accompanied by coronal dimming evident in extreme ultraviolet (EUV) and soft X-ray observations. The locations of dimming are sometimes considered to map footpoints of the erupting flux rope. As the…

太阳与恒星天体物理 · 物理学 2016-07-06 J. X. Cheng , J. Qiu

We present a 3-D morphological and field reconstruction of a coronal mass ejection (CME) from 2023 November 28, which hits three spacecraft near 1 au: Wind at Earth's L1 Lagrange point; STEREO-A with a longitudinal separation of…

太阳与恒星天体物理 · 物理学 2025-03-07 Brian E. Wood , Phillip Hess

Total solar eclipse (TSE) coronal large and small scale events were reported in the historical literature but a definite synoptic coverage was missing for studying a relationship with the more general magnetic context of the solar-disk. We…

太阳与恒星天体物理 · 物理学 2020-01-29 Boris Filippov , Serge Koutchmy , Nicolas Lefaudeux

Using in situ measurements and remote-sensing observations, we study a coronal mass ejection (CME) that left the Sun on 9 July 2013 and impacted both Mercury and Earth while the planets were in radial alignment (within $3^\circ$). The CME…

空间物理 · 物理学 2020-05-06 N. Lugaz , R. M. Winslow , C. J. Farrugia

Aims. Coronal Mass Ejections (CMEs) are the most fascinating explosion in the solar system; however, their formation is still not fully understood. Methods. Here, we investigate a well-observed CME on 2021 May 07 that showed a typical…

太阳与恒星天体物理 · 物理学 2022-10-26 B. T. Wang , X. Cheng , H. Q. Song , M. D. Ding

We perform a numerical study of the evolution of a Coronal Mass Ejection (CME) and its interaction with the coronal magnetic field based on the May 12, 1997, CME event using a global MagnetoHydroDynamic (MHD) model for the solar corona. The…

太阳与恒星天体物理 · 物理学 2015-05-19 O. Cohen , G. D. R. Attrill , N. A. Schwadron , N. U. Crooker , M. J. Owens , C. Downs , T. I. Gombosi

The availability of high quality synoptic observations of the EUV and visible corona during the SOHO mission has advanced our understanding of the low corona manifestations of CMEs. The EUV imager/white light coronagraph connection has been…

太阳与恒星天体物理 · 物理学 2009-08-11 Eva Robbrecht , Spiros Patsourakos , Angelos Vourlidas

We demonstrate how the parameters of a Gibson-Low flux-rope-based coronal mass ejection (CME) can be constrained using remote observations. Our Multi Scale Fluid-Kinetic Simulation Suite (MS-FLUKSS) has been used to simulate the propagation…

太阳与恒星天体物理 · 物理学 2019-04-24 Talwinder Singh , Mehmet Sarp Yalim , Nikolai Pogorelov , Nat Gopalswamy

We present a detailed study of an earth-directed coronal mass ejection (Full halo CME) event happened on 2011 February 15 making use of white light observations by three coronagraphs and radio observations by Wind/WAVES. We applied three…

太阳与恒星天体物理 · 物理学 2017-02-08 Lei Lu , Bernd Inhester , Li Feng , Siming Liu , Xinhua Zhao

Accurate estimation of propagation characteristics of coronal mass ejections (CMEs) is crucial for predicting their geoeffectiveness. Stereoscopic techniques to study the kinematics of CMEs generally have been carried out using remote…

太阳与恒星天体物理 · 物理学 2026-02-19 Sandeep Kumar , Nandita Srivastava , Parthib Banerjee , Nat Gopalswamy

We report on the Atmospheric Imaging Assembly (AIA) observations of plasma outflows originating in a coronal dimming during the 2015 April 28th filament eruption. After the filament started to erupt, two flare ribbons formed, one of which…

太阳与恒星天体物理 · 物理学 2021-01-20 Juraj Lörinčík , Jaroslav Dudík , Guillaume Aulanier , Brigitte Schmieder , Leon Golub

This paper aims to track the 3D evolution of a full halo CME on 2011 June 21. The CME results from a non-radial eruption of a filament-carrying flux rope in NOAA active region 11236. The eruption is observed in EUV wavelengths by the EUVI…

太阳与恒星天体物理 · 物理学 2022-05-04 Q. M. Zhang

We present the multi-wavelength observations of asymmetric filament eruption, associated CME and coronal downflows on 2012 June 17-18 during 20:00-05:00 UT. We use SDO/AIA, STEREO-B/SECCHI observations to understand the filament eruption…

太阳与恒星天体物理 · 物理学 2015-06-15 N. C. Joshi , A. K. Srivastava , B. Filippov , W. Uddin , P. Kayshap , R. Chandra

In this paper we examine a low-energy SEP event observed by IS$\odot$IS's Energetic Particle Instrument-Low (EPI-Lo) inside 0.18 AU on September 30, 2020. This small SEP event has a very interesting time profile and ion composition. Our…

We compare the magnetic helicity in the 17-18 March 2013 interplanetary coronal mass ejection (ICME) flux-rope at 1 AU and in its solar counterpart. The progenitor coronal mass ejection (CME) erupted on 15 March 2013 from NOAA active region…

太阳与恒星天体物理 · 物理学 2018-09-19 Sanchita Pal , Nat Gopalswamy , Dibyendu Nandy , Sachiko Akiyama , Seiji Yashiro , Pertti Makela , Hong Xie

Observations of the off-limb corona with the SWAP wide-field telescope in the 174\,\AA\ passband onboard the PROBA2 mission provide an opportunity to study post-eruptive processes in the dimming regions. We investigate morphology, temporal…

太阳与恒星天体物理 · 物理学 2020-03-26 F. Goryaev , V. Slemzin , D. Rodkin

A high-speed halo-type coronal mass ejection (CME), associated with a GOES M4.6 soft X-ray flare in NOAA AR 0180 at S12W29 and an EIT wave and dimming, occurred on 9 November 2002. A complex radio event was observed during the same period.…

天体物理学 · 物理学 2008-01-21 N. J. Lehtinen , S. Pohjolainen , K. Huttunen-Heikinmaa , E. Valtonen , R. Vainio , A. E. Hillaris

Coronal mass ejections (CMEs) from pseudostreamers represent a significant fraction of large-scale eruptions from the Sun. In some cases, these CMEs take a narrow jet-like form reminiscent of coronal jets; in others, they have a much…

太阳与恒星天体物理 · 物理学 2024-09-13 P. F. Wyper , B. J. Lynch , C. R. DeVore , P. Kumar , S. K. Antiochos , L. K. S. Daldorff

Solar coronal mass ejections (CMEs) are large-scale eruptions of plasma and magnetic field from the Sun into the corona and interplanetary space. They are the most significant drivers of adverse space weather at Earth and other locations in…

太阳与恒星天体物理 · 物理学 2012-02-20 Jason P. Byrne