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The source and engine of coronal mass ejections [PDF]

open access: yesPhilosophical Transactions Series A, Mathematical, Physical, and Engineering Sciences, 2019
Coronal mass ejections (CMEs) are large-scale expulsions of coronal plasma and magnetic field propagating through the heliosphere. Because CMEs are observed by white-light coronagraphs which, by design, occult the solar disc, supporting disc observations (e.g. in EUV, soft X-rays, Halpha and radio) must be employed for the study of their source regions
Emmanouil Georgoulis   +2 more
exaly   +5 more sources

Coronal dimmings and what they tell us about solar and stellar coronal mass ejections [PDF]

open access: yesLiving Reviews in Solar Physics
Coronal dimmings associated with coronal mass ejections (CMEs) from the Sun have gained much attention since the late 1990s when they were first observed in high-cadence imagery of the SOHO/EIT and Yohkoh/SXT instruments.
Astrid M. Veronig   +12 more
doaj   +3 more sources

Stellar coronal mass ejections [PDF]

open access: yesSerbian Astronomical Journal, 2022
Stellar coronal mass ejections (CMEs) are a growing research field, especially during the past decade. The large number of so far detected exoplanets raises the open question for the CME activity of stars, as CMEs may strongly affect ...
Leitzinger M., Odert P.
doaj   +3 more sources

Coronal mass ejections are not coherent magnetohydrodynamic structures [PDF]

open access: yesScientific Reports, 2017
Coronal mass ejections (CMEs) are episodic eruptions of solar plasma and magnetic flux that travel out through the solar system, driving extreme space weather. Interpretation of CME observations and their interaction with the solar wind typically assumes
M. J. Owens, M. Lockwood, L. A. Barnard
doaj   +2 more sources

Integration of solar flare and coronal mass ejection event dataHarvard Dataverse [PDF]

open access: yesData in Brief
Solar flares and coronal mass ejections are solar transient events that can impact our technological infrastructure in near-Earth and Earth environments. While related, not all flares generate CMEs and there are a limited number of resources that connect
Anli Ji   +2 more
doaj   +2 more sources

Coronal Mass Ejections: Observations [PDF]

open access: yesLiving Reviews in Solar Physics, 2012
Solar eruptive phenomena embrace a variety of eruptions, including flares, solar energetic particles, and radio bursts. Since the vast majority of these are associated with the eruption, development, and evolution of coronal mass ejections (CMEs), we ...
David F. Webb, Timothy A. Howard
doaj   +2 more sources

Predicting the geoeffective properties of coronal mass ejections: current status, open issues and path forward [PDF]

open access: yesPhilosophical Transactions Series A, Mathematical, Physical, and Engineering Sciences, 2019
Neel Savani, Angelos Vourlidas
exaly   +2 more sources

The birth of a coronal mass ejection [PDF]

open access: yesScience Advances, 2019
Tiny plasmoids merge on the Sun and snowball into a stellar-sized eruption.
Tingyu Gou   +4 more
openaire   +4 more sources

COMPOSITION OF CORONAL MASS EJECTIONS [PDF]

open access: yesThe Astrophysical Journal, 2016
ABSTRACT We analyze the physical origin of plasmas that are ejected from the solar corona. To address this issue, we perform a comprehensive analysis of the elemental composition of interplanetary coronal mass ejections (ICMEs) using recently released elemental composition data for Fe, Mg, Si, S, C, N, Ne, and He as compared to O and H ...
T. H. Zurbuchen   +5 more
openaire   +2 more sources

Machine Learning for Predicting the Bz Magnetic Field Component From Upstream in Situ Observations of Solar Coronal Mass Ejections

open access: yesSpace Weather, 2021
Predicting the Bz magnetic field embedded within interplanetary coronal mass ejections (ICMEs), also known as the Bz problem, is a key challenge in space weather forecasting. We study the hypothesis that upstream in situ measurements of the sheath region
M. A. Reiss   +8 more
doaj   +1 more source

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