云南高校图书馆联盟文献共享服务平台- CHROMOSPHERE

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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

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

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

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

Image Desaturation for SDO/AIA Using Mixed Convolution Network被引量：1: 《Research in Astronomy and Astrophysics》2022年第6期91-100,共10页Xuexin Yu Long Xu Zhixiang Ren Dong Zhao Wenqing Sun; supported by the Peng Cheng Laboratory Cloud Brain(No.PCL2021A13);the National Natural Science Foundation of China(NSFC)under 11790305,11973058 and 12103064。; The Atmospheric Imaging Assembly(AIA)onboard the Solar Dynamics Observatory(SDO)provides full-disk solar images with high temporal cadence and spatial resolution over seven extreme ultraviolet(EUV)wave bands.However,a...; 关键词：Sun:activity SUN atmosphere-Sun CHROMOSPHERE

Solar Supergranular Fractal Dimension Dependence on the Solar Cycle Phase: 《Research in Astronomy and Astrophysics》2022年第4期55-61,共7页G.Rajani G.M.Sowmya U.Paniveni R.Srikanth; We study the complexity of the supergranular network through fractal dimension by using the Ca II K digitized data archive obtained from the Kodaikanal Solar Observatory.The data consist of 326 visually selected super...; 关键词：Sun:chromosphere Sun:granulation Sun:activity

Electric resistivity of partially ionized plasma in the lower solar atmosphere: 《Research in Astronomy and Astrophysics》2021年第9期193-201,共9页Jongchul Chae Yuri ELitvinenko; supported by the National Research Foundation of Korea(NRF-2020R1A2C2004616);the support by the Deutsche Forschungsgemeinschaft project(434200803)。; The lower solar atmosphere is a gravitationally stratified layer of partially ionized plasma.We calculate the electric resistivity in the solar photosphere and chromosphere,which is the key parameter that controls the...; 关键词：PLASMAS atomic processes magnetohydrodynamics(MHD) Sun:atmosphere Sun:chromosphere

CHROMOSPHERE