Results 21 to 30 of about 549 (204)

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   +5 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

Why Do Torus-unstable Solar Filaments Experience Failed Eruptions? [PDF]

open access: yesThe Astrophysical Journal Letters, 2019
Abstract We study the magnetic field and 3D configuration of 16 filament eruptions during 2010 July–2013 February in order to investigate the factors that control the success and/or failure of solar eruptions. All of these events, i.e., eruptions that failed to be ejected and become coronal mass ejections, have filament maximum heights ...
Zhenjun 振军 Zhou 周   +7 more
openaire   +6 more sources

Prediction of Solar Eruptions Using Filament Metadata

open access: yesAstrophysical Journal, Supplement Series, 2018
Abstract We perform a statistical analysis of erupting and non-erupting solar filaments to determine the properties related to the eruption potential. In order to perform this study, we correlate filament eruptions documented in the Heliophysics Event Knowledgebase (HEK) with HEK filaments that have been grouped together using a ...
Rafal Angryk   +2 more
exaly   +2 more sources

Quantification of the Writhe Number of the Evolution of Solar Filament Axes [PDF]

open access: yesThe Astrophysical Journal, 2023
Solar filament eruptions often show complex and dramatic geometric deformation that is highly relevant to the underlying physical mechanism triggering the eruptions.
Zhenjun Zhou   +5 more
doaj   +2 more sources

Observations of a Failed Solar Filament Eruption Involving External Reconnection

open access: yesThe Astrophysical Journal, 2023
We report a failed solar filament eruption that involves external magnetic reconnection in a quadrupolar magnetic configuration. The evolution exhibits three phases of kinematic evolution: a slow rise, an acceleration, and a deceleration.
Yuehong Chen   +4 more
doaj   +3 more sources

Partial Eruption of Solar Filaments. I. Configuration and Formation of Double-decker Filaments

open access: yesThe Astrophysical Journal, 2023
Partial eruptions of solar filaments are the typical representatives of solar eruptive behavior diversity. Here we investigate a typical filament partial eruption event and present integrated evidence for the configuration of the pre-eruption filament ...
Yijun Hou   +15 more
doaj   +3 more sources

Observational Evidence of the Kink Instability in Solar Filament Eruptions and Sigmoids [PDF]

open access: yesAstrophysical Journal, 2005
Two lines of observational evidence are used to infer that the MHD helical kink instability is associated with solar eruptions. The senses of twist and writhe are determined in images of seven erupting filaments obtained at 10830, 1600, 195, and 171 ?. In every case the sense of twist is the same as the sense of writhe, as required for a kink.
D M Rust, B J Labonte
exaly   +2 more sources

Three-dimensional Velocity Fields of the Solar Filament Eruptions Detected by CHASE

open access: yesThe Astrophysical Journal Letters
The eruption of solar filaments, also known as prominences appearing off limb, is a common phenomenon in the solar atmosphere. It ejects massive plasma and high-energy particles into interplanetary space, disturbing the solar-terrestrial environment.
Ye Qiu   +5 more
doaj   +3 more sources

Sympathetic Eruption of Two Filaments and Associated Solar Coronal Jet

open access: yesThe Astrophysical Journal
Combining the high-quality observations from the Solar Dynamics Observatory, the Global Oscillation Network Group, and the Chinese H α Solar Explorer, we report a solar coronal jet triggered by the sympathetic eruption of two filaments on 2024 January 11.
Jiayan Yang   +6 more
doaj   +3 more sources

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