Results 41 to 50 of about 65,282 (317)

GLOBAL ENERGETICS OF SOLAR FLARES. IV. CORONAL MASS EJECTION ENERGETICS [PDF]

open access: yes, 2016
This study entails the fourth part of a global flare energetics project, in which the mass mcme, kinetic energy Ekin, and the gravitational potential energy Egrav of coronal mass ejections (CMEs) is measured in 399 M and X-class flare events observed ...
M. Aschwanden
semanticscholar   +1 more source

Three-dimensional MHD simulation of the 2008 December 12 coronal mass ejection: from the Sun to Interplanetary space

open access: yesJournal of Space Weather and Space Climate, 2019
A three-dimensional time-dependent, numerical magnetohydrodynamic simulation is performed to investigate the propagation of a coronal mass ejection that occurred on 12 December 2008.
Zhang Man, Feng Xue Shang, Yang Li Ping
doaj   +1 more source

A slow coronal mass ejection with rising X-ray source [PDF]

open access: yes, 2005
An eruptive event, which occurred on 16th April 2002, is discussed. Using images from the Transition Region and Coronal Explorer ( TRACE) at 195 angstrom, we observe a lifting flux rope which gives rise to a slow coronal mass ejection ( CME).
Goff, CP   +4 more
core   +1 more source

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 focus on CME observations in this review. CMEs are a key aspect of coronal and interplanetary dynamics.
David F. Webb, Timothy A. Howard
openaire   +2 more sources

Observations of flux rope formation prior to coronal mass ejections [PDF]

open access: yes, 2013
Understanding the magnetic configuration of the source regions of coronal mass ejections (CMEs) is vital in order to determine the trigger and driver of these events.
Green, Lucie M., Kliem, Bernhard
core   +1 more source

TRIGGER OF A BLOWOUT JET IN A SOLAR CORONAL MASS EJECTION ASSOCIATED WITH A FLARE [PDF]

open access: yes, 2015
Using the multi-wavelength images and the photospheric magnetograms from the Solar Dynamics Observatory, we study the flare that was associated with the only coronal mass ejection (CME) in active region (AR) 12192.
Xiaohong Li   +4 more
semanticscholar   +1 more source

Deciphering the Slow-rise Precursor of a Major Coronal Mass Ejection

open access: yesThe Astrophysical Journal Letters, 2023
Coronal mass ejections are explosive plasma phenomena prevalently occurring on the Sun and probably on other magnetically active stars. However, how their pre-eruptive configuration evolves toward the main explosion remains elusive.
X. Cheng   +5 more
doaj   +1 more source

The Inhomogeneity of Composition Along the Magnetic Cloud Axis

open access: yesFrontiers in Physics, 2021
Coronal mass ejections (CMEs) are one of the most energetic explosions in the solar system. It is generally accepted that CMEs result from eruptions of magnetic flux ropes, which are dubbed as magnetic clouds (MCs) in interplanetary space.
Hongqiang Song   +9 more
doaj   +1 more source

Plasmoid-Induced-Reconnection and Fractal Reconnection [PDF]

open access: yes, 2000
As a key to undertanding the basic mechanism for fast reconnection in solar flares, plasmoid-induced-reconnection and fractal reconnection are proposed and examined.
A Hundhausen   +61 more
core   +2 more sources

Solar Coronal Mass Ejections [PDF]

open access: yesSymposium - International Astronomical Union, 1990
In addition to the more or less steady solar wind, the Sun also ejects mass in highly time dependent events taking place in the corona once every few days at solar activity minimum and as often as three times a day at solar activity maximum (Hundhausen 1988, Low 1986).
A. J. Hundhausen, D. G. Sime, B. C. Low
openaire   +1 more source

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