funded by the National Natural Science Foundation of China (NSFC) under Nos. 41074132, 41274193, 41474166, and 41774085;the Special Fund of the Institute of Geophysics, China Earthquake Administration (Grant No. DQJB22X12)。
We studied the latitudinal and solar cycle distribution of extreme(≥X5) solar flares spanning 1976–2018. We found that all such flares were confined within the latitudinal range of [S30, N35]. Nonetheless, the major...
Intensity fluctuations are frequently observed in different regions and structures of the solar corona.These fluctuations may be caused by magneto-hydrodynamic(MHD)waves in coronal plasma.MHD waves are prime candidate...
supported by the Natural Natural Science Foundation of China(NSFC,grant No.12303062);Sichuan Science and Technology Program(2023NSFSC1351);Joint Funds of the National Natural Science Foundation of China(NSFC,grant No.U1931116);the Project Supported by the Specialized Research Fund for State Key Laboratories。
This paper deduced the temporal evolution of the magnetic field through a series of high-resolution vector magnetograms and calculated the fine distribution map of current density during an X9.3-class flare eruptions ...
The automatic detection and analysis of sunspots play a crucial role in understanding solar dynamics and predicting space weather events.This paper proposes a novel method for sunspot group detection and classificatio...
the Strategic Priority Research Program on Space Science of the Chinese Academy of Sciences,the grant No.XDA15320104,with additional contributions from the Purple Mountain Observatory(PMO)of the Chinese Academy of Sciences and the National Space Science Center(NSSC).
For the ASO-S/HXI payload, the accuracy of the flare reconstruction is reliant on important factors such as the alignment of the dual grating and the precise measurement of observation orientation. To guarantee optima...
supported by grants of the National Natural Foundation of China(NSFC12073016);the open topic of the Yunnan Key Laboratory of Solar Physics and Space Science(YNSPCC202217)。
The solar flare is one of the most violent explosions,and can disturb the near-Earth space weather.Except for commonly single-peaked solar flares in soft X-ray,some special flares show intriguing a two-peak feature th...
Using the data on magnetic field maps and continuum intensity for Solar Cycles 23 and 24,we explored 100 active regions(ARs)that produced M5.0 or stronger flares.We focus on the presence/absence of the emergence of ma...
supported by the“Belt and Road”Innovative Talent Exchange Project for Foreign Experts,sponsored by the Ministry of Science and Technology,China(G2022030048L);science and technology innovation strategy special fund project of Guangdong Province(pdjh2023b0433);undergraduate capacity enhancement innovation project of Guangzhou Province(2022JXA003).
Postpartum elevation of alanine aminotransferase(ALT)in mothers with chronic hepatitis B(CHB)presents a significant clinical challenge.However,the existing literature demonstrates inconsistencies regarding its inciden...
supported by the Russian Foundation for Basic Research and the Czech Science Foundation(project No.20-52-26006,Tsap Yu.T.);the Russian Science Foundation(project No.22-12-00308,Stepanov A.V.and Tsap Yu.T.)。
We analyze electron acceleration by a large-scale electric field E in a collisional hydrogen plasma under the solar flare coronal conditions based on approaches proposed by Dreicer and Spitzer for the dynamic friction...