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Interplanetary coronal mass ejections (ICMEs) have low proton beta across a broad range of heliocentric distances and a magnetic flux rope structure at large scales, making them a unique environment for studying solar wind fluctuations.…

Solar and Stellar Astrophysics · Physics 2023-10-17 S. W. Good , O. K. Rantala , A. -S. M. Jylhä , C. H. K. Chen , C. Möstl , E. K. J. Kilpua

Stealth coronal mass ejections (CMEs) are eruptions from the Sun that have no obvious low coronal signature. These CMEs are characteristically slower events, but can still be geoeffective and affect space weather at Earth. Therefore,…

Solar and Stellar Astrophysics · Physics 2019-09-11 Jennifer O'kane , Lucie Green , David M. Long , Hamish Reid

Currently, achieving a balance between computational efficiency, accuracy, and numerical stability in CME simulations, particularly in the sub-Alfv{'e}nic coronal region, remains a significant challenge. This paper aims to address the…

Coronal Mass Ejections (CMEs) are the major drivers of Space Weather (SWx), so predicting their arrival at Earth is a major aspect of SWx forecasting. Despite increasingly complex models proposed over the past decades, the mean absolute…

Space Physics · Physics 2025-08-18 Syed Raza , Talwinder Singh , Nikolai Pogorelov

Coronal mass ejections (CMEs) are huge expulsions of magnetized matter from the Sun and stars, traversing space with speeds of millions of kilometers per hour. Solar CMEs can cause severe space weather disturbances and consumer power…

Solar and Stellar Astrophysics · Physics 2021-10-26 Astrid M. Veronig , Petra Odert , Martin Leitzinger , Karin Dissauer , Nikolaus C. Fleck , Hugh S. Hudson

In a case study (June 6-7, 2008) we report on how the internal structure of a coronal mass ejection (CME) at 1 AU can be anticipated from remote observations of white-light images of the heliosphere. Favorable circumstances are the absence…

In order to have a comprehensive view of the propagation and evolution of coronal mass ejections (CMEs) from the Sun to deep interplanetary space beyond 1 au, we carry out a kinematic analysis of 7 CMEs in solar cycle 23. The events are…

Solar and Stellar Astrophysics · Physics 2019-09-25 Xiaowei Zhao , Ying D. Liu , Huidong Hu , Rui Wang

Among the current challenges in Space Weather, one of the main ones is to forecast the internal magnetic configuration within Interplanetary Coronal Mass Ejections (ICMEs). Currently, a monotonic and coherent magnetic configuration observed…

Solar and Stellar Astrophysics · Physics 2021-01-12 Luiz F. G. dos Santos , Ayris Narock , Teresa Nieves-Chinchilla , Marlon Nuñez , Michael Kirk

Understanding the thermal and turbulence properties of interplanetary coronal mass ejections (ICMEs) is essential for analyzing their evolution and interactions with the surrounding medium. This study explores these characteristics across…

Solar and Stellar Astrophysics · Physics 2025-05-27 Soumyaranjan Khuntia , Wageesh Mishra

Coronal mass ejections (CMEs) are solar eruptions of plasma and magnetic fields that significantly impact Space Weather, causing disruptions in technological systems and potential damage to power grids when directed towards Earth.…

Solar and Stellar Astrophysics · Physics 2024-10-07 Shantanu Jain , Tatiana Podladchikova , Galina Chikunova , Karin Dissauer , Astrid M. Veronig

Forecasting large Solar Energetic Particle (SEP) events associated with shocks driven by fast coronal mass ejections (CME) pose a major difficulty in the field of Space Weather. Besides issues associated with CME initiation, the SEP…

Solar and Stellar Astrophysics · Physics 2019-08-19 J. Martin Laming , J. Dan Moses , Yuan-Kuen Ko , Chee K. Ng , Cara E. Rakowski , Allan J. Tylka

Simultaneous in situ measurements of coronal mass ejections (CMEs), including both plasma and magnetic field, by two spacecraft in radial alignment have been extremely rare. Here, we report on one such CME measured by Solar Orbiter (SolO)…

Solar and Stellar Astrophysics · Physics 2023-11-27 F. Regnault , N. Al-Haddad , N. Lugaz , C. J. Farrugia , W. Yu , B. Zhuang , E. E. Davies

Multiple magnetic and kinetic solar wind plasma parameters are used to detect coronal mass ejections (CMEs) as they travel through the heliosphere. There are various interplanetary CME (ICME) catalogues, but due to differences between their…

Solar and Stellar Astrophysics · Physics 2024-06-21 Anton Shiryaev , Ksenia Kaportseva

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 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

In this paper, we review the preliminary results on the propagation effects and interplanetary consequences of fast and wide coronal mass ejection (CME) events, occurred during 18--25 June 2015, in the Sun-Earth distance range. The…

Solar and Stellar Astrophysics · Physics 2016-03-14 P. K. Manoharan , D. Maia , A. Johri , M. S. Induja

Shocks driven by coronal mass ejections (CMEs) are primary drivers of gradual solar energetic particle (SEP) events, posing significant risks to space technology and astronauts. Concurrently, particles accelerated at these shocks may also…

Coronal mass ejections (CMEs) and other solar eruptive phenomena can be physically linked by combining data from a multitude of ground-based and space-based instruments alongside models, however this can be challenging for automated…

Propagation of interplanetary (IP) shocks, particularly those driven by coronal mass ejections (CMEs), is still an outstanding question in heliophysics and space weather forecasting. Here we address effects of the ambient solar wind on the…

Solar and Stellar Astrophysics · Physics 2024-11-04 Chin-Chun Wu , Kan Liou , Brian E. Wood , Lynn Hutting

We identify coronal mass ejections (CMEs) associated with magnetic clouds (MCs) observed near Earth by the Wind spacecraft from 2008 to mid-2012, a time period when the two STEREO spacecraft were well positioned to study Earth-directed…