Results 11 to 20 of about 1,069,804 (194)

Solar Filament Eruptions in H α Doppler Velocity [PDF]

open access: yesThe Astrophysical Journal, 2023
We use observations taken with a novel solar telescope spectroheliograph to investigate the association between the early filament rise and coronal mass ejections (CMEs).
I. A. Berezin   +2 more
doaj   +4 more sources

Falling Threads during Solar Filament Eruptions

open access: yesThe Astrophysical Journal
Mass drainage is frequently observed in solar filaments. During filament eruptions, falling material most likely flows along magnetic field lines, which may provide important clues for the magnetic structures of filaments.
Yidian Wu   +3 more
doaj   +4 more sources

SYMPATHETIC SOLAR FILAMENT ERUPTIONS [PDF]

open access: yesAstrophysical Journal Letters, 2016
ABSTRACT The 2015 March 15 coronal mass ejection as one of the two that together drove the largest geomagnetic storm of solar cycle 24 so far was associated with sympathetic filament eruptions. We investigate the relations between the different filaments involved in the eruption.
Rui Wang, Ivan Zimovets, Huidong Hu
exaly   +4 more sources

Minifilament Eruptions as the Last Straw to Break the Equilibrium of a Giant Solar Filament

open access: yesThe Astrophysical Journal
Filament eruptions are magnetically driven violent explosions commonly observed on the Sun and late-type stars, sometimes leading to monster coronal mass ejections that directly affect the nearby planets’ environments.
Hechao Chen   +10 more
doaj   +2 more sources

Sun-as-a-star Observations of Obscuration Dimmings Caused by Filament Eruptions [PDF]

open access: yesThe Astrophysical Journal
Filament eruptions often lead to coronal mass ejections (CMEs) on the Sun and are one of the most energetic eruptive phenomena in the atmospheres of other late-type stars.
Yu Xu   +3 more
doaj   +4 more sources

Predicting Solar Filament Eruptions With Hek Filament Metadata

open access: yes, 2015
Solar filaments are cool, dark channels of partially-ionized plasma that lie above the chromosphere. Their structure follows the neutral line between local regions of opposite magnetic polarity. Previous research (e.g. Schmieder et al. 2013) has shown a positive correlation (80%) between the occurrence of filament eruptions and coronal mass ejections ...
Aggarwal, Ashna   +1 more
openaire   +3 more sources

Filament eruptions and the impulsive phase of solar flares

open access: yesAstrophysical Journal, 1988
Filament motion during the onset of the solar flare impulsive phase is examined. The impulsive phase onset is established from profiles of about 30 keV X-ray fluxes and the rapid flare brightenings characteristic of the H-alpha flash phase. The filament motion begins several minutes before the impulsive or flash phase of the flare.
S R Kane, S W Kähler, H Zirin
exaly   +2 more sources

Two Cases of Non-Radial Filament Eruption and Associated CME Deflection

open access: yesUniverse
The purpose of this paper is to analyze the multi-wavelength and multi-instrument observations of two quiescent filament eruptions as well as the deflection of associated CMEs from the radial direction.
Kostadinka Koleva   +4 more
doaj   +2 more sources

Solar filament eruptions and energetic particle events

open access: yesAstrophysical Journal, 1986
The 1981 December 5 solar filament eruption that is associated with an energetic (E greater than 50 MeV) particle event observed at 1 AU. The eruption was photographed in H-alpha and was observed by the Solwind whitelight coronagraph on P78-1. It occurred well away from any solar active region and was not associated with an impulsive microwave burst ...
N r jr Sheeley, R G Stone, E W Cliver
exaly   +2 more sources

Solar filament eruptions and their physical role in triggering coronal mass ejections [PDF]

open access: yesAdvances in Space Research, 2013
23 pages, 13 figures ...
Guillaume Aulanier   +2 more
exaly   +4 more sources

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