Results 11 to 20 of about 6,461 (252)

Coronal dimming and the coronal mass ejection onset [PDF]

open access: yesAstronomy & Astrophysics, 2003
A set of five observations of extreme-ultraviolet (EUV) coronal dimming associated with coronal mass ejection (CME) activity is examined. Using spectroscopic data, plasma characteristics across a broad range of temperatures from 20 000 K to 2 million K are determined. The dimming events are found to coincide in time, and to coincide spatially, with the
R. A. Harrison   +3 more
openaire   +2 more sources

Solar Coronal Mass Ejection and Post–Coronal Mass Ejection Blob Formation in Two-fluid Simulations

open access: yesThe Astrophysical Journal
A coronal mass ejection (CME) and post-CME blob phenomena in the solar atmosphere, associated with shear flow and convergent flow perturbations in the photosphere, are investigated using a resistive two-fluid (electron–ion) code.
J. C. Du, Z. W. Ma
doaj   +2 more sources

Identifying and Predicting Coronal Mass Ejection Occurrence: Observational Checklists for Space Weather Forecasters

open access: yesSpace Weather
Ejections of magnetized plasma from the Sun, known as coronal mass ejections, can drive major geomagnetic activity if Earth‐directed, and are therefore monitored by space weather forecasters.
L. M. Green   +7 more
doaj   +2 more sources

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   +2 more sources

From the Sun to the Earth: The 13 May 2005 Coronal Mass Ejection [PDF]

open access: yes, 2010
We report the results of a multi-instrument, multi-technique, coordinated study of the solar eruptive event of 13 May 2005. We discuss the resultant Earth-directed (halo) coronal mass ejection (CME), and the effects on the terrestrial space environment ...
Chashei, I. V.   +111 more
core   +1 more source

Earth-affecting solar transients: a review of progresses in solar cycle 24

open access: yesProgress in Earth and Planetary Science, 2021
This review article summarizes the advancement in the studies of Earth-affecting solar transients in the last decade that encompasses most of solar cycle 24. It is a part of the effort of the International Study of Earth-affecting Solar Transients (ISEST)
Jie Zhang   +18 more
doaj   +1 more source

A solar storm observed from the Sun to Venus using the STEREO, Venus Express, and MESSENGER spacecraft [PDF]

open access: yes, 2009
The suite of SECCHI optical imaging instruments on the STEREO-A spacecraft is used to track a solar storm, consisting of several coronal mass ejections (CMEs) and other coronal loops, as it propagates from the Sun into the heliosphere during May 2007 ...
Forsyth, R.   +141 more
core   +1 more source

Simultaneous interplanetary scintillation and Heliospheric Imager observations of a coronal mass ejection [PDF]

open access: yes, 2008
We describe simultaneous Interplanetary Scintillation (IPS) and STEREO Heliospheric Imager (HI) observations of a coronal mass ejection (CME) on 16 May 2007. Strong CME signatures were present throughout the IPS observation.
Rouillard AP   +23 more
core   +1 more source

First imaging of corotating interaction regions using the STEREO spacecraft [PDF]

open access: yes, 2008
Plasma parcels are observed propagating from the Sun out to the large coronal heights monitored by the Heliospheric Imagers (HI) instruments onboard the NASA STEREO spacecraft during September 2007. The source region of these out-flowing parcels is found
Rouillard AP   +58 more
core   +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

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