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• OAI收割 [34]

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• 期刊论文 [24]
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浏览/检索结果: 共34条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Camera Design and Performance for the Earth 2.0 Mission 会议论文  OAI收割 Montreal, CANADA, 2022-07-17 作者:  Song, Zongxi;  Li, Wei;  Wang, Fengtao;  Cheng, Pengfei;  Shen, Chao   |  收藏  |  浏览/下载：37/0  |  提交时间：2022/11/21 space mission  planets  transit telescopes  CMOS  prototype  high precision photometry   Space Science in China: A Historical Perspective on Chinese Policy 1957e2020 and Policy Implication 期刊论文  OAI收割 SPACE POLICY, 2021, 卷号: 58, 页码: 14 作者:  Zhang, Zhihui   |  收藏  |  浏览/下载：32/0  |  提交时间：2022/07/01 Space science  Scientific satellites  Human spaceflight  Space telescopes  China  Space programs   In-orbit calibration to the point-spread function of Insight-HXMT 期刊论文  OAI收割 JOURNAL OF HIGH ENERGY ASTROPHYSICS, 2020, 卷号: 25, 页码: 39-47 作者:  Nang, Yi;  Liao, Jin-Yuan;  Sai, Na;  Wang, Chen;  Guan, Ju   |  收藏  |  浏览/下载：15/0  |  提交时间：2021/12/06 Instrumentation: detectors  Space vehicles: instrumentation  Telescopes   In-orbit calibration to the point-spread function of Insight-HXMT 期刊论文  OAI收割 JOURNAL OF HIGH ENERGY ASTROPHYSICS, 2020, 卷号: 25, 页码: 39-47 作者:  Nang, Yi;  Liao, Jin-Yuan;  Sai, Na;  Wang, Chen;  Guan, Ju   |  收藏  |  浏览/下载：14/0  |  提交时间：2021/12/06 Instrumentation: detectors  Space vehicles: instrumentation  Telescopes   Comparison of simulated backgrounds with in-orbit observations for HE, ME, and LE onboard Insight-HXMT 期刊论文  OAI收割 Astrophysics and Space Science, 2020, 卷号: 365, 页码: 158 作者:  HXMT   |  收藏  |  浏览/下载：48/0  |  提交时间：2022/02/08 Insight-HXMT  Geant4 simulation  Background observation  Astrophysics  - Instrumentation and Methods for Astrophysics  Abstract: Insight-HXMT, the first X-ray astronomical satellite in China, aims to reveal new sources in the Galaxy and to study fundamental physics of X-ray binaries from 1 to 250 keV. It has three collimated telescopes, the High Energy X-ray telescope (HE), the Medium Energy X-ray telescope (ME), and the Low Energy X-ray telescope (LE). Before the launch, in-orbit backgrounds of these three telescopes had been estimated through Geant4 simulation, in order to investigate the instrument performance and the achievement of scientific goals. In this work, these simulated backgrounds are compared with in-orbit observations. Good agreements are shown for all three telescopes. For HE, (1) the deviation of the simulated background rate after two years of operation in space is 5 % from the observation  (2) the total background spectrum and the relative abundance of the 67 keV line show long-term increases both in simulations and observations. For ME, (1) the deviation of simulated background rate is within 15 % from the observation, and (2) there are no obvious long-term increase features in the background spectra of simulations and observations. For LE, the background level given by simulations is also consistent with observations. The consistencies of these comparisons validate that the Insight-HXMT mass model, i.e., space environment components and models adopted, physics processes selected, and detector constructions built, is reasonable. However, the line features at 7.5 and 8.0 keV, which are obvious in the observed spectra of LE, are not evident in simulations. This might result from uncertainties in the LE constructions.   Space debris observation performance research of CSTAR at Kunlun Station in Antarctica 期刊论文  OAI收割 ADVANCES IN SPACE RESEARCH, 2019, 卷号: 64, 期号: 8, 页码: 1527-1536 作者:  Li, Gongqiang;  Jiang, Hai;  Cheng, Haowen;  Liu, Jing;  Yang, Chenwei   |  收藏  |  浏览/下载：21/0  |  提交时间：2020/03/10 Antarctica  Space debris  Detection  Simulation  Telescopes   Venus Express radio occultation observed by PRIDE 期刊论文  OAI收割 ASTRONOMY & ASTROPHYSICS, 2019, 卷号: 624, 页码: 14 作者:  Cui, L.;  Bocanegra-Bahamon, T. M.;  Calves, G. Molera;  Gurvits, L., I;  Cimo, G.   |  收藏  |  浏览/下载：83/0  |  提交时间：2019/05/23 planets and satellites: atmospheres  occultations  telescopes  methods: observational  methods: data analysis  space vehicles: instruments   Venus Express radio occultation observed by PRIDE 期刊论文  OAI收割 ASTRONOMY & ASTROPHYSICS, 2019, 卷号: 624, 页码: 14 作者:  Bocanegra-Bahamon, T. M.;  Calves, G. Molera;  Gurvits, L., I;  Cimo, G.;  Dirkx, D.   |  收藏  |  浏览/下载：70/0  |  提交时间：2019/05/23 planets and satellites: atmospheres  occultations  telescopes  methods: observational  methods: data analysis  space vehicles: instruments   Review on on-orbit assembly of large space telescopes 会议论文  OAI收割 Beijing, China, 2019-07-07 作者:  Song, Yang;  Li, Chuang;  Zhao, Hui;  Xia, Siyu;  Li, Xupeng   |  收藏  |  浏览/下载：49/0  |  提交时间：2020/03/04 on-orbit assembly  space telescopes  implementation methods  high precision robots   Key technology in developing of metrology mount for large aperture monolithic space-based mirror 期刊论文  OAI收割 Guangxue Jingmi Gongcheng/Optics and Precision Engineering, 2019, 卷号: 27, 期号: 10, 页码: 2165-2179 作者:  D.-Y.Dong;  X.-Y.Pang;  X.-J.Zhang;  Y.-C.Fan;  Z.-L.Li   |  收藏  |  浏览/下载：15/0  |  提交时间：2020/08/24 Mirrors,Space telescopes,Unloading