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Fast interplanetary coronal mass ejections (interplanetary CMEs, or ICMEs) are the drivers of strongest space weather storms such as solar energetic particle events and geomagnetic storms. The connection between space weather impacting…

Solar and Stellar Astrophysics · Physics 2017-03-15 Takuya Takahashi , Kazunari Shibata

The recent launch of Solar Orbiter and BepiColombo opened a brief window in which these two spacecraft were positioned in a constellation that allows for the detailed sampling of any Earth-directed CMEs. Fortunately, two such events…

We investigate the coronal and interplanetary evolution of a coronal mass ejection (CME) launched on 2010 September 4 from a source region linking two active regions (ARs) 11101 and 11103, using extreme ultraviolet imaging, magnetogram,…

Solar and Stellar Astrophysics · Physics 2017-05-24 Huidong Hu , Ying D. Liu , Rui Wang , Xiaowei Zhao , Bei Zhu , Zhongwei Yang

A central question for understanding interplanetary coronal mass ejection (ICME) physics and improving space weather forecasting is how ICMEs evolve in interplanetary space. We have updated one of the most comprehensive in situ ICME…

Interplanetary coronal mass ejections (ICMEs), the large-scale eruptive phenomena capable of shedding a huge amount of solar magnetic helicity and energy are potential in driving strong geomagnetic storms. They complexly evolve while…

Solar and Stellar Astrophysics · Physics 2025-10-22 Sanchita Pal , Cecilia Mac Cormack , Emilia K. J. Kilpua , Yogesh , Lan K. Jian , Teresa Nieves-Chinchilla

Coronal Mass Ejections (CMEs) are arguably the most violent eruptions in the Solar System. CMEs can cause severe disturbances in the interplanetary space and even affect human activities in many respects, causing damages to infrastructure…

Solar and Stellar Astrophysics · Physics 2018-03-28 Jiajia Liu , Yudong Ye , Chenlong Shen , Yuming Wang , Robert Erdélyi

Coronal mass ejections (CMEs) are the largest type of eruptions on the Sun and the main driver of severe space weather at the Earth. In this study, we implement a force-free spheromak CME description within 3-D magnetohydrodynamic…

Solar and Stellar Astrophysics · Physics 2022-12-20 Gordon J. Koehn , Ravindra T. Desai , Emma E. Davies , Robert J. Forsyth , Jonathan P. Eastwood , Stefaan Poedts

Coronal mass ejections (CMEs) are a major driver of space weather. To assess CME geoeffectiveness, among other scientific goals, it is necessary to reliably identify and characterize their morphology and kinematics in coronagraph images.…

We have performed, for the first time, the successful automated detection of Coronal Mass Ejections (CMEs) in data from the inner heliospheric imager (HI-1) cameras on the STEREO A spacecraft. Detection of CMEs is done in time-height maps…

Solar and Stellar Astrophysics · Physics 2016-12-14 V. Pant , S. Willems , L. Rodriguez , M. Mierla , D. Banerjee , J. A. Davies

We study the influence of the large-scale interplanetary magnetic field configuration on the solar energetic particles (SEPs) as detected at different satellites near Earth and on the correlation of their peak intensities with the parent…

Solar and Stellar Astrophysics · Physics 2014-03-05 R. Miteva , K. -L. Klein , O. Malandraki , G. Dorrian

Understanding the evolution of radial sizes and instantaneous expansion speeds of coronal mass ejections (CMEs) is crucial for assessing their impact duration on Earth's environment. We introduce a non-conventional approach to derive the…

Solar and Stellar Astrophysics · Physics 2024-09-30 Anjali Agarwal , Wageesh Mishra

The Parker Solar Probe (PSP) observed an interplanetary coronal mass ejection (ICME) event during its first orbit around the sun, among many other events. This event is analyzed by applying a wavelet analysis technique to obtain the reduced…

It is generally known that multi-spacecraft observations of interplanetary coronal mass ejections (ICMEs) more clearly reveal their three-dimensional structure than do observations made by a single spacecraft. The launch of the STEREO twin…

Space Physics · Physics 2015-06-11 Tamitha Mulligan , Alysha A. Reinard , Benjamin J. Lynch

Prediction of the effects of coronal mass ejections (CMEs) on Earth strongly depends on knowledge of the interplanetary magnetic field southward component, Bz. Predicting the strength and duration of Bz inside a CME with sufficient accuracy…

Space Physics · Physics 2016-12-28 M. Kubicka , C. Möstl , T. Amerstorfer , P. D. Boakes , L. Feng , J. P. Eastwood , O. Tormanen

We present an analysis of {\it in situ} and remote-sensing measurements of a coronal mass ejection (CME) that erupted on 2021 February 20 and impacted both the Solar TErrestrial RElations Observatory (STEREO)-A and the {\it Wind}…

The Time-of-Arrival (ToA) of coronal mass ejections (CME) at Earth is a key parameter due to the space weather phenomena associated with the CME arrival, such as intense geomagnetic storms. Despite the incremental use of new instrumentation…

The spectra of coronal mass ejections (CMEs) in the low corona play a crucial role in understanding their origins and physical mechanism, and enhancing space weather forecasting. However, capturing these spectra faces significant…

Solar and Stellar Astrophysics · Physics 2025-04-01 Lami Chan , Xianyong Bai , Hui Tian , Yufei Feng , Yu Xu , Tibor Török , Yuhang Gao , Tanmoy Samanta , Zheng Sun

Predicting the large-scale eruptions from the solar corona and their propagation through interplanetary space remains an outstanding challenge in solar- and helio-physics research. In this article, we describe three dimensional…

Solar and Stellar Astrophysics · Physics 2020-09-08 Ravindra T. Desai , Han Zhang , Emma E. Davies , Julia E. Stawarz , Joan Mico-Gomez , Pilar Iváñez-Ballesteros

Interplanetary scintillation (IPS) is a useful tool for detecting coronal mass ejections (CMEs) throughout interplanetary space. Global magnetohydrodynamic (MHD) simulations of the heliosphere, which are usually used to predict the arrival…

Solar and Stellar Astrophysics · Physics 2022-09-27 Kazumasa Iwai , Richard A. Fallows , Mario M. Bisi , Daikou Shiota , Bernard V. Jackson , Munetoshi Tokumaru , Ken'ichi Fujiki

We investigate the turbulent properties of 12 interplanetary coronal mass ejections (ICMEs) observed by Solar Orbiter between 0.29 and 1.0 AU. We analyze fluctuation power, spectral indices, break scales, and correlations between magnetic…

Solar and Stellar Astrophysics · Physics 2026-01-13 Jyoti Sheoran , Supratik Banerjee , Vaibhav Pant , Dipankar Banerjee , M. Saleem Khan