Results 21 to 30 of about 1,753 (184)

A Comparative Study of Two Contrasting Cosmic-Ray Events Caused by Solar Eruptions from NOAA AR 12673 in 2017 September

open access: yesThe Astrophysical Journal, 2023
Two major solar eruptions on AR 12673 produced a Forbush decrease (FD) event (reduction of cosmic rays) on 2017 September 8 and ground-level enhancement (GLE; enhancement of cosmic rays) on 2017 September 10.
Xiao Xia Yu   +5 more
doaj   +1 more source

Editorial to the Special Issue “Propagation of Coronal Mass Ejections”

open access: yesUniverse, 2023
Coronal mass ejections (CMEs) and their associated shocks are one of the main drivers of heliosphere variability, causing both interplanetary and planetary perturbations [...]
Mateja Dumbović, Fang Shen
doaj   +1 more source

The relationship of coronal mass ejections to streamers [PDF]

open access: yesJournal of Geophysical Research: Space Physics, 1999
We have examined images from the Large‐Angle and Spectrometric Coronagraph (LASCO) to study the relationship of coronal mass ejections (CMEs) to coronal streamers. We wish to test the suggestion [Low, 1996] that CMEs arise from flux ropes embedded in a streamer erupting and disrupting the streamer. The data span a period of 2 years near Sunspot minimum
Subramanian, Prasad   +3 more
openaire   +2 more sources

Transport in the interplanetary medium of coronal mass ejections [PDF]

open access: yesGeofísica Internacional, 2008
Las eyecciones de masa coronal (EMCs) son estructuras de plasma y campo magnético expulsadas desde el Sol hacia el medio interplanetario y generalmente observadas coronógrafos de luz blanca.
A. Borgazzi   +3 more
doaj   +2 more sources

Unraveling the Thermodynamic Enigma between Fast and Slow Coronal Mass Ejections

open access: yesThe Astrophysical Journal, 2023
Coronal mass ejections (CMEs) are the most energetic expulsions of magnetized plasma from the Sun that play a crucial role in space weather dynamics.
Soumyaranjan Khuntia   +5 more
doaj   +1 more source

Coronal dimmings associated with coronal mass ejections on the solar limb [PDF]

open access: yesThe Astrophysical Journal, 2020
<p>We studied 43 coronal dimming events associated with Earth-directed coronal mass ejections (CMEs) that were observed in quasi-quadrature by the SDO and STEREO satellites. We derived the properties of the dimmings as observed above the limb by ...
Galina Chikunova   +3 more
openaire   +3 more sources

Coronal Mass Ejections [PDF]

open access: yesHighlights of Astronomy, 1986
AbstractThis paper gives a brief review of current observation, interpretation and theory of coronal transient mass ejections. Some recent new results are described.
openaire   +1 more source

Coronal Mass Ejections and Coronal Structures [PDF]

open access: yes, 1989
The coronal portion of the solar atmosphere consists of a wide variety of structures which exhibit a similarly wide variety of dynamical processes and kinds of activity. The launch of the SMM presented an opportunity to study the low and intermediate corona from space with multiple instruments for protracted periods of time.
E. Hildner   +20 more
openaire   +1 more source

Causal relationships between eruptive prominences and coronal mass ejections [PDF]

open access: yesAnnales Geophysicae, 2008
A close association between eruptive prominences and CMEs, both slow and fast CMEs, was reported in many studies. Sometimes it was possible to follow the material motion starting from the prominence (filament) activation to the CME in the high corona.
B. Filippov, S. Koutchmy
doaj   +1 more source

Coronal dimming as a proxy for stellar coronal mass ejections [PDF]

open access: yesProceedings of the International Astronomical Union, 2019
AbstractSolar coronal dimmings have been observed extensively in the past two decades and are believed to have close association with coronal mass ejections (CMEs). Recent study found that coronal dimming is the only signature that could differentiate powerful flares that have CMEs from those that do not.
M. Jin   +8 more
openaire   +2 more sources

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