Results 51 to 60 of about 54,745 (274)

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

The evolution of coronal mass ejections in the inner heliosphere: Implementing the spheromak model with EUHFORIA

open access: yesAstronomy & Astrophysics, 2019
Aims. We introduce a new model for coronal mass ejections (CMEs) that has been implemented in the magnetohydrodynamics (MHD) inner heliosphere model EUHFORIA.
C. Verbeke, J. Pomoell, S. Poedts
semanticscholar   +1 more source

Successive X-class Flares and Coronal Mass Ejections Driven by Shearing Motion and Sunspot Rotation in Active Region NOAA 12673 [PDF]

open access: yes, 2018
We present a clear case study on the occurrence of two successive X-class flares, including a decade-class flare (X9.3) and two coronal mass ejections (CMEs) triggered by shearing motion and sunspot rotation in active region NOAA 12673 on 2017 September ...
Xiaoli Yan   +7 more
semanticscholar   +1 more source

Global Energetics of Solar Flares. V. Energy Closure in Flares and Coronal Mass Ejections [PDF]

open access: yes, 2017
In this study we synthesize the results of four previous studies on the global energetics of solar flares and associated coronal mass ejections (CMEs), which include magnetic, thermal, nonthermal, and CME energies in 399 solar M- and X-class flare events
M. Aschwanden   +13 more
semanticscholar   +1 more source

Forecasting the Structure and Orientation of Earthbound Coronal Mass Ejections

open access: yesSpace Weather, 2019
Coronal Mass Ejections (CMEs) are the key drivers of strong to extreme space weather storms at the Earth that can have drastic consequences for technological systems in space and on ground.
E. Kilpua   +3 more
semanticscholar   +1 more source

Statistics of Coronal Dimmings Associated with Coronal Mass Ejections. II. Relationship between Coronal Dimmings and Their Associated CMEs [PDF]

open access: yesAstrophysical Journal, 2018
We present a statistical study of 62 coronal dimming events associated with Earth-directed coronal mass ejections (CMEs) during the quasi-quadrature period of STEREO and the Solar Dynamics Observatory (SDO).
K. Dissauer   +3 more
semanticscholar   +1 more source

Statistics of Coronal Dimmings Associated with Coronal Mass Ejections. I. Characteristic Dimming Properties and Flare Association [PDF]

open access: yesAstrophysical Journal, 2018
Coronal dimmings, localized regions of reduced emission in the extreme-ultraviolet and soft X-rays (SXRs), are interpreted as density depletions due to mass loss during the coronal mass ejection (CME) expansion.
K. Dissauer   +4 more
semanticscholar   +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

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