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We present a novel three-dimensional (3D) model of coronal mass ejections (CMEs) that unifies all key evolutionary aspects of CMEs and encapsulates their 3D magnetic field configuration. This fully analytic model is capable of reproducing…

Space Physics · Physics 2017-03-07 Alexey Isavnin

The Solar TErrestrial RElations Observatory (STEREO) provides high cadence and high resolution images of the structure and morphology of coronal mass ejections (CMEs) in the inner heliosphere. CME directions and propagation speeds have…

Solar and Stellar Astrophysics · Physics 2015-03-31 Savani , N. P. , Davies , J. A. , Davis , C. J. , Shiota , D. , Rouillard , A. P. , Owens , M. J. , Kusano , K. , Bothmer , V. , Bamford , S. P. , Lintott , C. J. , Smith , A

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…

Solar and Stellar Astrophysics · Physics 2022-05-04 Q. M. Zhang

Predicting the impacts of coronal mass ejections (CMEs) is a major focus of current space weather forecasting efforts. Typically, CME properties are reconstructed from stereoscopic coronal images and then used to forward model a CME's…

Solar and Stellar Astrophysics · Physics 2024-04-05 C. Kay , E. Palmerio

We numerically model the coronal mass ejection (CME) event of October 28, 2003 that erupted from active region 10486 and propagated to Earth in less than 20 hours causing severe geomagnetic storms. The magnetohydrodynamic (MHD) model is…

Coronal mass ejections (CMEs) typically exhibit a three-component structure in white-light (WL) coronagraphs. Utilizing the seamless observations of the inner corona ($\le$ 3 R$_\odot$), we have revealed the early evolution of the cavity…

Solar and Stellar Astrophysics · Physics 2025-08-21 Shuting Li , Li Feng , Beili Ying , Hongqiang Song , Guanglu Shi , Jiahui Shan , Jie Zhao , Weiqun Gan

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…

Solar and Stellar Astrophysics · Physics 2023-04-12 Manon Jarry , Alexis P. Rouillard , Illya Plotnikov , Athanasios Kouloumvakos , Alexander Warmuth

We employ a three-dimensional (3D) reconstruction technique, for the first time to study the kinematics of six coronal mass ejections (CMEs), using images obtained from the COR1 and COR2 coronagraphs on board the twin STEREO spacecraft, as…

Solar and Stellar Astrophysics · Physics 2022-09-14 Anand D Joshi , Nandita Srivastava

Coronal mass ejections (CMEs) are major drivers of geomagnetic storms, which may cause severe space weather effects. Automating the detection, tracking, and three-dimensional (3D) reconstruction of CMEs is important for operational…

Solar and Stellar Astrophysics · Physics 2024-06-06 Jiahui Shan , Huapeng Zhang , Lei Lu , Yan Zhang , Li Feng , Yunyi Ge , Jianchao Xue , Shuting Li

Our study attempts to understand the collision characteristics of two coronal mass ejections (CMEs) launched successively from the Sun on 2013 October 25. The estimated kinematics, from three-dimensional (3D) reconstruction techniques…

Solar and Stellar Astrophysics · Physics 2016-11-09 Wageesh Mishra , Yuming Wang , Nandita Srivastava

Solar coronal mass ejections (CMEs) are the most significant drivers of adverse space weather at Earth, but the physics governing their propagation through the heliosphere is not well understood. While stereoscopic imaging of CMEs with the…

Solar and Stellar Astrophysics · Physics 2010-11-15 Jason P. Byrne , Shane A. Maloney , R. T. James McAteer , Jose M. Refojo , Peter T. Gallagher

Context. Studying the kinematic and dynamic evolution of fast eruptive events from the middle to high solar corona is a primary objective of the Metis coronagraph on Solar Orbiter. During perihelion, Metis acquires visible light images at a…

We present an analysis of the fast coronal mass ejection (CME) of 2012 March 7, which was imaged by both STEREO spacecraft and observed in situ by MESSENGER, Venus Express, Wind and Mars Express. Based on detected arrivals at four different…

Solar and Stellar Astrophysics · Physics 2014-07-18 T. Rollett , C. Moestl , M. Temmer , R. A. Frahm , J. A. Davies , A. M. Veronig , B. Vrsnak , U. V. Amerstorfer , C. J. Farrugia , T. Zic , T. L. Zhang

Forecasting the geomagnetic effects of solar storms, known as coronal mass ejections (CMEs), is currently severely limited by our inability to predict the magnetic field configuration in the CME magnetic core and by observational effects of…

We describe a geometric triangulation technique, based on time-elongation maps constructed from imaging observations, to track coronal mass ejections (CMEs) continuously in the heliosphere and predict their impact on the Earth. Taking…

Solar and Stellar Astrophysics · Physics 2015-05-14 Ying Liu , Jackie A. Davies , Janet G. Luhmann , Angelos Vourlidas , Stuart D. Bale , Robert P. Lin

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…

Solar and Stellar Astrophysics · Physics 2022-07-20 Marilena Mierla , Bernd Inhester , Andrei N. Zhukov , Sergei V. Shestov , Alessandro Bemporad , Philippe Lamy , Serge Koutchmy

We present the results of the observations of a coronal mass ejection (CME), which occurred on May 13, 2009. The most important feature of these observations is that the CME was observed from the very early stage (the solar surface) up to a…

Solar and Stellar Astrophysics · Physics 2015-09-28 Anton Reva , Artem Ulyanov , Sergey Bogachev , Sergey Kuzin

The determination of the speed of Coronal Mass Ejections (CMEs) is usually done by tracking brighter features (such as the CME front and core) in visible light coronagraphic images and by deriving unidimensional profiles of the CME speed as…

Solar and Stellar Astrophysics · Physics 2019-07-31 Beili Ying , Alessandro Bemporad , Silvio Giordano , Paolo Pagano , Li Feng , Lei Lu , Hui Li , Weiqun Gan

Coronal mass ejections (CMEs) are the main drivers of geomagnetic disturbances, but the effects of their interaction with Earth's magnetic field depend on their magnetic configuration and orientation. Fitting and reconstruction techniques…

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…

Solar and Stellar Astrophysics · Physics 2020-11-04 Li Feng , Lei Lu , Bernd Inhester , Joseph Plowman , Beili Ying , Marilena Mierla , Matthew J. West , Weiqun Gan