11 papers
Definability of Hausdorff Limits for Lipschitz Cells in O-minimal Structures
Xiaoduo Wang
We study Hausdorff limits of definable families over arbitrary models of o-minimal expansions of real closed fields. Over the real field, van den Dries proved that Hausdorff limits…
Back Reaction of the Untwisting Solar Corona Scars Sunspots
Chen Xing, Xin Cheng, Guillaume Aulanier +1
The paper reports that untwisting of coronal loops after magnetic reconnection transfers twist back to the photosphere, creating enhanced currents that appear as growing sunspot sc…
Revisiting Approaches to Stellar White-Light Flare Energy Based on Spatiotemporally Resolved Solar Observations
Yingjie Cai, Yijun Hou, Ting Li +5
Accurately estimating the bolometric energy of solar and stellar white-light flares (WLFs) is crucial for understanding their physical nature and impact on surrounding planets. How…
Multiple Extreme Ultraviolet Peaks Attributed to Three-dimensional Magnetic Reconnection in a Long-duration Solar Flare
Shihan Li, Jinhan Guo, Wensi Wang +5
Solar flares are a major driver of hazardous space weather, whose intense electromagnetic emissions and energetic particles can significantly disturb the near-Earth space environme…
Rotation of a Solar Jet Driven by Plasma Flow along Helical Magnetic Fields in an Active Region
Lei Huang, Yang Guo, Zhen Li +2
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 attri…
Influence of Cross-sectional Expansion on Coronal Emissions from a Radiatively Cooling Solar Flare Loop
Yu Dai, Shihan Li, Wenlong Tang +2
Loop-aligned hydrodynamic modelings help better understand the thermodynamic evolution of flaring plasma confined in solar flare loops. Conventional loop modelings typically assume…