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Observational Results of the ChangE-1 Solar X-Ray Monitor |
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| Authors: | X Z Cui H Y Wang W X Peng C M Zhang X H Liang J Z Wang M Gao J W Yang X L Cao J Y Zhang M Y Wu J Chang H X Sun Z Y OuYang Y L Zhou C L Li |
| Institution: | 1. Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing, China 2. Purple Mountain Observatory, CAS, Nanjing, China 3. Center for Space Science and Applied Research, CAS, Beijing, China 4. National Astronomical Observatories, CAS, Beijing, China |
| Abstract: | We present the primary observations of the Solar X-ray Monitor (SXM) payload onboard the ChangE-1 lunar exploration satellite, which was launched on 24 October 2007. The SXM payload uses a solid-state silicon P-I-N photo-diode (Si-PIN) whose dynamic energy ranges from 1 keV to 10 keV. The long-term integrated spectra at different solar-activity levels as observed by the SXM are presented. By fitting these spectra with an optically thin plasma model, the two-minute temperature variation of the solar coronal plasma during a solar flare is also presented. |
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