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Joint hard X-ray observations with ASO-S/HXI and SO/STIX

Research in Astronomy and Astrophysics 2019年第11期19卷 127-130页

作者： Sam Krucker gordon jhurford Yang Su Wei-Qun Gan University of Applied Sciences and Arts Northwestern Switzerland Bahnhofstrasse 65210WindischSwitzerland Space Science Laboratory University of California7 Gauss Way94720 BerkeleyUSA Key Laboratory of Dark Matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210034China

This paper discusses the potential of future joint hard X-ray solar flare observations between the Hard X-ray Imager(HXI)onboard the Advanced Space-based Solar Observatory(ASO-S)mission and the Spectrometer/Telescope for Imaging X-rays(STIX)on Solar *** different viewing perspectives of the two telescopes relative to the Sun will allow us for the first time to systematically study non-thermal hard X-ray emissions *** the 4-years of the nominal mission of ASO-S,we expect to jointly observe about 160 flares above GOES M1 class to systematically study hard X-ray *** about 16 partially limb-occulted STIX flares,we will have observations of the entire flare by *** observations will enable us to simultaneously study the all-important coronal hard X-ray sources,which are generally lost in the instrument’s individual imaging dynamic range,in combination with the chromospheric footpoint *** two different detector systems used in the two telescopes make the relative calibration between the two instruments a key task that needs to be addressed before creditable science results can be *** an accurate inter-calibration can be achieved using jointly observed flares on the disk,observations with HXI and STIX will provide new and essential key diagnostics for solar flare physics.

关键词： Sun flares

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Simulations and software development for the Hard X-ray Imager onboard ASO-S

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Research in Astronomy and Astrophysics 2019年第11期19卷 93-102页

作者： Yang Su Wei Liu You-Ping Li Zhe Zhang gordon jhurford Wei Chen Yu Huang Zhen-Tong Li Xian-Kai Jiang Hao-Xiang Wang Fan-Xiao-Yu Xia Chang-Xue Chen Wen-Hui Yu Fu Yu Jian Wu Wei-Qun Gan Key Laboratory of Dark Matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210034China School of Astronomy and Space Science University of Science and Technology of ChinaHefei 230026China University of Applied Sciences and Arts Northwestern Switzerland Bahnhofstrasse 65210WindischSwitzerland Space Science Laboratory University of California7 Gauss Way94720 BerkeleyUSA School of Space Science and Physics Shandong UniversityWeihai 264209China

China’s first solar mission,the Advanced Space-based Solar Observatory(ASO-S),is now changing from Phase B to Phase *** main scientific objectives are summarized as’1M2B’,namely magnetic field and two types of bursts(solar flares and coronal mass ejections).Among the three scientific payloads,Hard X-ray Imager(HXI)observes images and spectra of X-ray bursts in solar *** this paper,we briefly report on the progresses made by the HXI science team(data and software team)during the design phase(till May 2019).These include simulations of HXI imaging,optimization of HXI grids,development of imaging algorithms,estimation of orbital background,as well as in-orbit calibration *** efforts provided guidance for the engineering,improved HXI’s imaging capability and reduced the cost of the instrument.

关键词： techniques X-ray imaging-techniques simulation Sun X-rays-Sun flares

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