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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

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   +4 more sources

Sympathetic Partial Filament Eruptions Caused by the Interaction between Two Nearby Filaments

open access: yesThe Astrophysical Journal, 2023
To better understand the physical connections in sympathetic solar eruptions, we investigated the interaction between two nearby filaments and their successive partial eruptions in the active region (AR) NOAA 12866 on 2021 September 9 by using data from ...
Liping Yang   +9 more
doaj   +2 more sources

Heating of Quiescent Coronal Loops Caused by Nearby Eruptions Observed with the Solar Dynamics Observatory and the Solar Upper Transition Region Imager [PDF]

open access: yesThe Astrophysical Journal, 2023
How structures, e.g., magnetic loops, in the upper atmosphere, i.e., the transition region and corona, are heated and sustained is one of the major unresolved issues in solar and stellar physics.
Leping Li   +7 more
doaj   +2 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

Quantification of the Writhe Number of the Evolution of Solar Filament Axes

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

Observation of Two Splitting Processes in a Partial Filament Eruption on the Sun: The Role of Breakout Reconnection

open access: yesThe Astrophysical Journal, 2023
Partial filament eruptions have often been observed; however, the physical mechanisms that lead to filament splitting are not yet fully understood.
Zheng Sun   +7 more
doaj   +1 more source

The Impulsive Acceleration of a Solar Filament Eruption Associated with a B-class Flare

open access: yesThe Astrophysical Journal, 2023
The eruption of magnetic flux ropes (MFRs), often taking filaments together, leads to coronal mass ejections (CMEs). Theoretical studies propose that both the resistive magnetic reconnection and the ideal instability of an MFR system can release magnetic-
Xinyue Wang   +5 more
doaj   +1 more source

Future high-resolution and high-cadence observations for unraveling small-scale explosive solar features

open access: yesFrontiers in Astronomy and Space Sciences, 2023
Solar coronal jets are frequently occurring collimated ejections of solar plasma, originating from magnetically mixed polarity locations on the Sun of size scale comparable to that of a supergranule.
Alphonse C. Sterling   +8 more
doaj   +1 more source

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