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insight-hxmt Research Progress Since 2023

空间科学学报 2024年第4期44卷 643-667页

作者： ZHANG Shu ZHANG Shuang-Nan Key Laboratory for Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049

Since the launch in June 2017,insight-hxmt has been in service smoothly in orbit and particularly productive in 2023 and *** a total number of 238 papers published so far based on insight-hxmt data,63 were published in 2023,and 32 in the early 2024(till 2024 April),accounting for 40%of the *** studies cover a variety of scientific subjects including the basic properties of black holes and neutron stars,the outburst of accreting black hole and neutron star X-ray binaries,thermal nuclear burst probes,isolated pulsars,quasi periodical oscillations,cyclotron resonant scattering features,fast radio bursts and gamma-ray bursts,*** paper introduces the overall progress with focus on some potential breakthroughs.

关键词： insight-hxmt Black hole Neutron star Outburst

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insight-hxmt on-orbit thermal control status and thermal deformation impact analysis

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Radiation Detection Technology and Methods 2023年第3期7卷 337-349页

作者： Ai-Mei Zhang Yi-Fan Zhang Jin-Yuan Liao Yu-Peng Xu Yu-Sa Wang Wen-Bo Luo Yu-Peng Zhou Zhi-Ying Qian Xiao-Bo Li Fang-Jun Lu Shuang-Nan Zhang Li-Ming Song Cong-Zhan Liu Fan Zhang Jian-Yin Nie Juan Wang Sheng Yang Tong Zhang Xiao-Jing Liu Rui-Jie Wang Xu-Fang Li Yi-Fei Zhang Zheng-Wei Li Xue-Feng Lu He Xu Di Wu Key Laboratory of Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Chinese Academy of SciencesBeijing 100049China Beijing Institute of Spacecraft System Engineering CASTBeijing 100094China

Purpose The Hard X-ray Modulation Telescope is China’s first X-ray astronomy satellite launched on June 15,2017,dubbed *** and passive thermal control measures are employed to keep devices at suitable *** this paper,we analyzed the on-orbit thermal monitoring data of the first 5 years and investigated the effect of thermal deformation on the point spread function(PSF)of the *** We examined the data of the on-orbit temperatures measured using 157 thermistors placed on the collimators,detectors and their support structures and compared the results with the thermal control *** thermal deformation was evaluated by the relative orientation of the two star sensors installed on the main support *** effect was estimated with evolution of the PSF obtained with calibration scanning observations of the Crab *** The on-orbit temperatures met the thermal control requirements thus far,and the effect of thermal deformation on the PSF was negligible after the on-orbit pointing calibration.

关键词： X-ray insight-hxmt Thermal control Temperature Star sensor data Pointing PSF

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In-orbit performance of HE onboard insight-hxmt in the first 5 years

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Radiation Detection Technology and Methods 2023年第1期7卷 3-14页

作者： Xu-Fang Li Cong-Zhan Liu Yi-Fei Zhang Xiao-Bo Li Zheng-Wei Li Xue-Feng Lu Zhi Chang Ming-Yu Ge Juan Zhang Yu-Peng Xu Fang-Jun Lu Li-Ming Song Shuang-Nan Zhang Key Laboratory of Particle Astrophysics Institute of High Energy PhysicsChinese Academy of Science19B Yuquan RoadShijingshan DistrictBeijing 100049China

Purpose The high-energy X-ray telescope(HE),one of the three main payloads of the insight-hxmt mission,is composed of eighteen NaI(Tl)/CsI(Na)phoswich detectors,where NaI(Tl)serves as the primary detector covering 20–250 keV,and CsI(Na)is used as an active shield detector to suppress the background of NaI(Tl)and also serves as an all-sky gammaray burst monitor covering 0.2–*** this paper,we review the in-orbit performance of HE in the first 5 years since insight-hxmt was launched on June 15,*** The major performances we concern include the gain and energy resolution of NaI(Tl)and CsI(Na)detectors,the performance of pulse shape discriminator(PSD)and system dead *** this work,we investigate these performances mainly using the data of blank-sky observations and the data when the telescope is in earth *** The overall performance of HE/NaI(Tl)is very stable in the first 5 years,whereas the gain of HE/CsI(Na)shows a continuously increasing trend and should be calibrated *** In general,HE is still in good health and well-calibrated status after five-year’s *** in-orbit performance of HE has no significant deviation from *** is expected to be in operation healthily for another several years of extended mission life.

关键词： insight-hxmt Hard X-ray telescope Scintillation detector In-orbit

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