Results 101 to 110 of about 3,305 (196)

Two-sided Loop Solar Jet Driven by the Eruption of a Small Filament in a Big Filament Channel

open access: yesThe Astrophysical Journal
Similar to the cases of anemone jets, two-sided loop solar jets can also be produced by either flux emergence from the solar interior or small-scale filament eruptions.
Jiayan Yang   +4 more
doaj   +1 more source

A Titov-Dèmoulin type eruption generator for finite pressure solar filaments

open access: yes, 2023
The 28th IUGG General Assembly (IUGG2023) (Berlin 2023)
Sokolov, I., Gombosi, T., Zhao, L.
openaire   +2 more sources

Supra-arcade Downflows in an Extensive Fan Associated with a Giant Quiescent Solar Filament Eruption

open access: yesThe Astrophysical Journal
We investigate the aftermath of a giant quiescent solar filament eruption on 2023 December 24. One feature of the eruption is an extensive fan above the filament channel that is about 3 times as wide as similar structures that appear above active regions
Xiaoyan Xie   +8 more
doaj   +1 more source

The Noneruptive Reconfiguration of a Quiescent Filament After a Nearby Active Region Emergence

open access: yesThe Astrophysical Journal
The unpredictability of solar filament eruptions presents major challenges for forecasting space weather, since such eruptions frequently drive coronal mass ejections that impact the heliosphere.
James McKevitt   +15 more
doaj   +1 more source

Mystery behind the Peeling of a Filament and the Associated Sudden Disappearance of a Sunspot Penumbra

open access: yesThe Astrophysical Journal Letters
On 2024 July 25, while observing the solar active region NOAA 13762 with the high-resolution 1.6 m Goode Solar Telescope at the Big Bear Solar Observatory, we witnessed two mysterious phenomena: the partial detachment of filament strands from its main ...
Ju Jing   +8 more
doaj   +1 more source

Investigating an Erupting Metric-decimetric Radio Depression and Its Physical Origin

open access: yesThe Astrophysical Journal
We present direct metric-decimetric radio imaging observations of a fascinating quiescent filament eruption on 2024 March 17 using data from the DAocheng Radio Telescope, with a combination of the Solar Dynamics Observatory and the Chinese H α Solar ...
B. T. Wang   +10 more
doaj   +1 more source

Rotation of a Solar Jet Driven by Plasma Flow along Helical Magnetic Fields in an Active Region

open access: yesThe Astrophysical Journal
Solar jets, collimated plasma ejections driven by magnetic reconnection, play a vital role in energy transport and coronal heating. While rotational motions in jets are often attributed to magnetic field untwisting, alternative explanatory mechanisms ...
Lei Huang   +4 more
doaj   +1 more source

The Eruptive Duality of a Filament on 2023 April 21

open access: yesThe Astrophysical Journal
Here we study a filament eruption on 2023 April 21. The filament was composed of two segments, named S1 and S2. Initially, the brightening and bidirectionally plasmoid flows appeared inside S1, and then the west part of S1 (WS1) experienced rapid rising ...
Yue Fang, Jun Zhang
doaj   +1 more source

Simple Model for Temporal Variations of Hα Spectrum by an Eruptive Filament from a Superflare on a Solar-type Star

open access: yesThe Astrophysical Journal
Flares are intense explosions on the solar and stellar surfaces, and solar flares are sometimes accompanied by filament or prominence eruptions. Recently, a large filament eruption associated with a superflare on a solar-type star EK Dra was discovered ...
Kai Ikuta, Kazunari Shibata
doaj   +1 more source

Automated High-Precision Recognition of Solar Filaments Based on an Improved U2-Net

open access: yesUniverse
Solar filaments are a significant solar activity phenomenon, typically observed in full-disk solar observations in the H-alpha band. They are closely associated with the magnetic fields of solar active regions, solar flare eruptions, and coronal mass ...
Wendong Jiang, Zhengyang Li
doaj   +1 more source

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