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  • Background Model for the Low-Energy Telescope of Insight-HXMT
    J. High Energy Astrophys. (IF 1.563) Pub Date : 2020-05-27
    Jin-Yuan Liao; Shu Zhang; Yong Chen; Juan Zhang; Jing Jin; Zhi Chang; Yu-Peng Chen; Ming-Yu Ge; Cheng-Cheng Guo; Gang Li; Xiao-Bo Li; Fang-Jun Lu; Xue-Feng Lu; Jian-Yin Nie; Li-Ming Song; Yan-Ji Yang; Yuan You; Hai-Sheng Zhao; Shuang-Nan Zhang

    With more than 150 blank sky observations at high Galactic latitude, we make a systematic study to the background of the Low Energy Telescope (LE) of the Hard X-ray Modulation Telescope (dubbed as Insight-HXMT). Both the on-ground simulation and the in-orbit observation indicate that the background spectrum mainly has two components. One is the particle background that dominates above 7 keV and its

    更新日期:2020-05-27
  • Background model for the high-energy telescope of Insight-HXMT
    J. High Energy Astrophys. (IF 1.563) Pub Date : 2020-05-27
    Jin-Yuan Liao; Shu Zhang; Xue-Feng Lu; Juan Zhang; Gang Li; Zhi Chang; Yu-Peng Chen; Ming-Yu Ge; Cheng-Cheng Guo; Rui Huang; Jing Jin; Xiao-Bo Li; Xu-Fang Li; Zheng-Wei Li; Cong-Zhan Liu; Fang-Jun Lu; Jian-Yin Nie; Li-Ming Song; Shuang-Nan Zhang

    Accurate background estimation is essential for spectral and temporal analysis in astrophysics. In this work, we construct the in-orbit background model for the High-Energy Telescope (HE) of the Hard X-ray Modulation Telescope (dubbed as Insight-HXMT). Based on the two-year blank sky observations of Insight-HXMT/HE, we first investigate the basic properties of the background and find that both the

    更新日期:2020-05-27
  • Calibration of the Instrumental Response of Insight-HXMT/HE CsI Detectors for Gamma-Ray Monitoring
    J. High Energy Astrophys. (IF 1.563) Pub Date : 2020-05-27
    Qi Luo; Jin-Yuan Liao; Xu-Fang Li; Gang Li; Juan Zhang; Cong-Zhan Liu; Xiao-Bo Li; Yue Zhu; Cheng-Kui Li; Yue Huang; Ming-Yu Ge; Yu-Peng Xu; Zheng-Wei Li; Ce Cai; Shuo Xiao; Qi-Bin Yi; Yi-Fei Zhang; Shao-Lin Xiong; Shuang-Nan Zhang

    The CsI detectors of the High Energy X-ray Telescope of the Hard X-ray Modulation Telescope (HXMT/CsI) can be used for gamma-ray all sky monitoring and searching for the electromagnetic counterpart of gravitational wave source. The instrumental responses are mainly obtained by Monte Carlo simulation with the Geant4 tool and the mass model of both the satellite and all the payloads, which is updated

    更新日期:2020-05-27
  • The observation of the South Atlantic Anomaly with the particle monitors onboard Insight-HXMT
    J. High Energy Astrophys. (IF 1.563) Pub Date : 2020-05-04

    The South Atlantic Anomaly (SAA) is a region of weakened geomagnetic field and in the previous studies, it shows a secular variation with time which is associated with the changing of the magnetic moment. This region also consists of large amounts of energetic charged particles and is danger to space vehicle and astronauts. Thus, it is essential to know the location and movement of the SAA. In this

    更新日期:2020-05-04
  • Scientific prospects for a mini-array of ASTRI telescopes: A γ-ray TeV data challenge
    J. High Energy Astrophys. (IF 1.563) Pub Date : 2020-05-04
    F. Pintore; A. Giuliani; A. Belfiore; A. Paizis; S. Mereghetti; N. La Palombara; S. Crestan; L. Sidoli; S. Lombardi; A. D'Aì; F.G. Saturni; P. Caraveo; A. Burtovoi; M. Fiori; C. Boccato; A. Caccianiga; A. Costa; G. Cusumano; L. Tibaldo

    ASTRI is a project aiming at the realization of a γ-ray imaging Cherenkov telescope that observes the sky in the TeV band. Recently, the development of a mini-array (MA) of ASTRI telescopes has been funded by the Istituto Nazionale di Astrofisica. The ASTRI Comprehensive Data Challenge (ACDC) project aims at optimizing the scientific exploitation and analysis techniques of the ASTRI MA, by performing

    更新日期:2020-05-04
  • Confirming the Spin Parameter of the Black Hole in Cygnus X-1 using the Insight-HXMT
    J. High Energy Astrophys. (IF 1.563) Pub Date : 2020-05-04
    Xue-Shan Zhao; Yan-Ting Dong; Li-Jun Gou; Ye Feng; Nan Jia; Yu-Feng Li; Zhen-Xuan Liao; Ji-Ren Liu; Xue-Ying Zheng; Shuang-Nan Zhang; Jin-Lu Qu; Li-Ming Song; Shu Zhang; Qing-Cui Bu; Ce Cai; Xue-Lei Cao; Zhi Chang; Gang Chen; Ren-Lin Zhuang

    Recently, the system parameters of Cygnus X-1, i.e., the black hole mass M, the orbital inclination i and the source distance D, have been updated. As the input constraints of the continuum-fitting method, it is necessary to refine the spin with these new parameters. The Hard X-ray Modulation Telescope (HXMT, also named Insight) was successfully launched on June 15th, 2017 in China. In this work, we

    更新日期:2020-05-04
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