
Copernical Team
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Reconstructing 3D magnetic topology of on-disk solar prominence bubbles

Solar prominences or filaments are cool and dense plasma structures suspended in the hot and tenuous corona.
Recent high-resolution solar limb observations reveal that some dark "bubbles" with bright arch-like boundaries form below prominences. It is puzzling that how these bubbles, semi-circular voids, form below dense prominences.
Ph.D. student Guo Yilin from National Astronomical Observatories of Chinese Academy of Sciences (NAOC), together with Dr. Hou Yijun, Dr. Li Ting, and Prof. Zhang Jun, found and investigated an on-disk bubble based on stereoscopic observations for the first time.
The study was published in the Astrophysical Journal Letters.
It is widely accepted that bubbles are closely related to the overlying prominence system and could eventually lead to the generation of a coronal mass ejection. This has serious effect on space weather.
"However, previous studies are all based on the solar limb observations or numerical simulations. If the bubble could be found on the solar disk, we could unveil the magnetic nature of the bubble," said Dr.
Buildup to super blood moon eclipses the finale

In the end, the buildup seemed to eclipse the finale.