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Nonlinear Coupling of Kinetic Alfvén Waves and Ion Acoustic Waves in the Inner Heliosphere: 《Research in Astronomy and Astrophysics》2024年第10期141-158,共18页Mani K.Chettri Vivek Shrivastav Rupak Mukherjee Nidhi Gaur R.P.Sharma Hemam D.Singh; the University Grants Commission,India for providing a Non-NET fellowship。; We study the nonlinear coupling of kinetic Alfvén waves with ion acoustic waves applicable to the Earth’s radiation belt and near-Sun streamer belt solar wind using dynamical equations in the form of modified Zakhar...; 关键词：Sun:chromosphere Sun:corona Sun:heliosphere

New Vacuum Solar Telescope Achieves Narrowband Infrared Solar Imaging Observation at He I 10830 A: 《Research in Astronomy and Astrophysics》2024年第5期76-84,共9页Wei-Jie Meng Fang-Yu Xu Zhen-Yu Jin; supported by Yunnan Revitalization Talent Support Program(202305AS350029 and 202305AT350005);Yunnan Key Laboratory of Solar Physics and Space Science(202205AG070009)。; The near-infrared imaging channel constitutes a crucial component of the multichannel high-resolution imaging system of the New Vacuum Solar Telescope(NVST). We have successfully achieved high-resolution, narrowband i...; 关键词：INSTRUMENTATION detectors-instrumentation high angular resolution-Sun chromosphere-Sun INFRARED

LyαEmission Enhancement Associated with Soft X-Ray Microflares: 《Research in Astronomy and Astrophysics》2023年第6期116-133,共18页Zheng-Yuan Tian Li Feng Lei Lu Fan-Xiaoyu Xia Yang Su Wei-Qun Gan Hui Li Yue Zhou; supported by the National Key R&D Program of China under grants 2022YFF0503003(2022YFF0503000)and 2018YFA0404200;the National Natural Science Foundation of China(NSFC,Grant Nos.11921003,11973012,and 11820101002);CAS Strategic Pioneer Program on Space Science(Grant Nos.XDA15018300,XDA15052200,XDA15320103,and XDA15320301);the mobility program(M-0068)of the Sino-German Science Center。; Lyα(Lyα,1216 A)is the strongest emission line in the solar ultraviolet spectrum.In the present work,we obtained a Lyαenhancement catalog covering flares larger than B1 class from the GOES/EUVS data during 2010-2016...; 关键词：Sun:flares Sun:chromosphere Sun:UV radiation Sun:filaments PROMINENCES

Variation of Small Scale Magnetic Fields Over a Century using Ca-K Images as Proxy: 《Research in Astronomy and Astrophysics》2023年第4期172-183,共12页Jagdev Singh Muthu Priyal B.Ravindra Luca Bertello Alexei Pevtsov; supported by the International Space Science Institute (ISSI),Bern,Switzerland and ISSI-Beijing,China。; A combined uniform and long-time series of Ca-K images from the Kodaikanal Observatory,Mount Wilson Observatory and Mauna Loa Solar Observatory was used to identify and study the Ca-K small-scale features and their so...; 关键词：SUN activity-Sun chromosphere-(Sun:)sunspots

High-resolution Solar Image Reconstruction Based on Non-rigid Alignment被引量：1: 《Research in Astronomy and Astrophysics》2022年第9期63-71,共9页Hui Liu Zhenyu Jin Yongyuan Xiang Kaifan Ji; sponsored by the National Natural Science Foundation of China (NSFC) under Grant Nos.11873027, U2031140, 12073077, 11833010 and 11973088;West Light Foundation of the Chinese Academy of Sciences (Y9XB01A and Y9XB019)。; Suppressing the interference of atmospheric turbulence and obtaining observation data with a high spatial resolution are an issue to be solved urgently for ground observations. One way to solve this problem is to perf...; 关键词：methods:data analysis techniques:image processing Sun:chromosphere Sun:photosphere instrumentation:high angular resolution

Supergranular Fractal Dimension and Solar Rotation: 《Research in Astronomy and Astrophysics》2022年第9期239-244,共6页G.M.Sowmya G.Rajani U.Paniveni R.Srikanth; We present findings from an analysis of the fractal dimension of solar supergranulation as a function of latitude,supergranular cell size and solar rotation, employing spectroheliographic data in the Ca II K line of s...; 关键词：Sun:chromosphere Sun:rotation Sun:magnetic fields

Irregular Spatial Distributions of Spectral Line Parameters in the Middle Solar Chromosphere Revealed from Analysis of Solar Flash MgⅠb_(2)Spectra: 《Research in Astronomy and Astrophysics》2022年第8期111-124,共14页Yuhang Jin Zhongquan Qu Zhi Xu Guangtao Dun Liang Chang Xiangming Cheng Xiaoyu Zhang Linhua Deng Yang Peng; the National Natural Science Foundation of China(NSFC,Grant Nos.11527804,U1931206,11373065,11078005,10943002 and 12003066)。; This paper presents the analytical results of solar MgⅠb_(2)flash spectra,obtained by the prototype Fiber Arrayed Solar Optic Telescope in process of the 2013 Gabon total solar eclipse.The analysis reveals irregular ...; 关键词：Sun:atmosphere Sun:chromosphere Sun:fundamental parameters

Magnetohydrostatic modeling of the solar atmosphere: 《Science China(Technological Sciences)》2022年第8期1710-1726,共17页ZHU XiaoShuai NEUKIRCH Thomas WIEGELMANN Thomas; the National Key R&D Program of China (Grant No. 2021YFA1600500) and mobility program (Grant No. M-0068) of the Sino-German Science Center;financial support by the UKs Science and Technology Facilities Council (STFC) (Grant Nos. ST/S000402/1 and ST/W001195/1) financial support by DLR-grant 50 OC 2101。; Understanding structures and evolutions of the magnetic fields and plasma in multiple layers on the Sun is very important. A force-free magnetic field which is an accurate approximation of the solar corona due to the ...; 关键词：magnetic field photosphere CHROMOSPHERE CORONA

The Chinese Hα Solar Explorer(CHASE) mission: An overview被引量：14: 《Science China(Physics,Mechanics & Astronomy)》2022年第8期2-9,共8页Chuan Li Cheng Fang Zhen Li MingDe Ding PengFei Chen Ye Qiu Wei You Yuan Yuan MinJie An HongJiang Tao XianSheng Li Zhe Chen Qiang Liu Gui Mei Liang Yang Wei Zhang WeiQiang Cheng JianXin Chen ChangYa Chen Qiang Gu QingLong Huang MingXing Liu ChengShan Han HongWei Xin ChangZheng Chen YiWei Ni WenBo Wang ShiHao Rao HaiTang Li Xi Lu Wei Wang Jun Lin YiXian Jiang LingJie Meng Jian Zhao; supported by China National Space Administration(CNSA)。; The Chinese Hα Solar Explorer(CHASE), dubbed “Xihe”—Goddess of the Sun, was launched on October 14, 2021 as the first solar space mission of China National Space Administration(CNSA). The CHASE mission is designed...; 关键词：space-based telescope solar physics CHROMOSPHERE photosphere

Calibration procedures for the CHASE/HIS science data被引量：5: 《Science China(Physics,Mechanics & Astronomy)》2022年第8期10-17,共8页Ye Qiu ShiHao Rao Chuan Li Cheng Fang MingDe Ding Zhen Li YiWei Ni WenBo Wang Jie Hong Qi Hao Yu Dai PengFei Chen XiaoSheng Wan Zhi Xu Wei You Yuan Yuan HongJiang Tao XianSheng Li YuKun He Qiang Liu; supported by China National Space Administration。; The Hα line is an important optical line in solar observations containing the information from the photosphere to the chromosphere. To study the mechanisms of solar eruptions and the plasma dynamics in the lower atmo...; 关键词：space-based telescope solar physics CHROMOSPHERE photosphere

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