Results 91 to 100 of about 1,069,804 (194)

Sigmoid Formation, Filament Destabilization, and Initiation of Weak Flare by Tether Cutting Reconnection

open access: yesThe Astrophysical Journal
We have studied a B-class solar flare and an associated filament eruption through multiwavelength observations. The flare is triggered at 16:24 UT on 2017 June 7 from Active Region(AR) 12661, and it maximizes at 16:54 UT.
B. Suresh Babu   +3 more
doaj   +1 more source

Initiation and early kinematic evolution of solar eruptions

open access: yes, 2020
We investigate the initiation and early evolution of 12 solar eruptions, including six active-region hot channel and six quiescent filament eruptions, which were well observed by the Solar Dynamics Observatory, as well as by the Solar Terrestrial ...
Török, Tibor   +7 more
core   +2 more sources

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

Reconnection Nanojets in an Erupting Solar Filament with Unprecedented High Speeds

open access: yesThe Astrophysical Journal Letters
Abstract Solar nanojets are small-scale jets generated by component magnetic reconnection, characterized by collimated plasma motion perpendicular to the reconnecting magnetic field lines. As an indicator of nanoflare events, they are believed to play a significant role in coronal heating.
Yuhang Gao   +6 more
openaire   +4 more sources

Successive filament eruptions within one solar breakout event [PDF]

open access: yesProceedings of the International Astronomical Union, 2013
AbstractThe magnetic breakout model has been widely used to explain solar eruptive activities. Here, we apply it to explain successive filament eruptions occurred in a quadrupolar magnetic source region. Based on the high temporal and spatial resolution, multi-wavelengths observations taken by the Atmospheric Imaging Assembly (AIA) on board the Solar ...
openaire   +2 more sources

A Universal Model for Solar Eruptions [PDF]

open access: yes, 2017
Magnetically driven eruptions on the Sun, from stellar-scale coronal mass ejections1 to small-scale coronal X-ray and extreme-ultraviolet jets, have frequently been observed to involve the ejection of the highly stressed magnetic flux of a filament ...
Devore, C. Richard   +5 more
core   +1 more source

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

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