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A modified direct demodulation method applied to Insight-HXMT Galactic plane scanning survey
Guan, Ju1; Lu, Fang-Jun1; Zhang, Shu1; Song, Li-Ming1; Chen, Yong1; Liao, Jin-Yuan1; Li, Cheng-Kui1; Nang, Yi1,2; Sai, Na1,2; Wang, Chen2,3; Zhang, Shuang-Nan1,2,3
2020-06-01
Source PublicationJOURNAL OF HIGH ENERGY ASTROPHYSICS
ISSN2214-4048
Volume26Pages:11-20
AbstractWe present a modified direct demodulation (DD) method for the detection of fast variable objects with the Insight-HXMT Galactic plane survey, which is dedicated to hunting for new transients and monitoring known variable sources. The novelty of the improved DD method is the reconstruction of the modified response matrix, in which the variability of a source is properly handled. Monte Carlo (MC) simulation results demonstrate its power for the detection of variable sources with different time scales, resulting in more accurate location and precise flux monitoring. The application of the method to the Insight-HXMT Galactic plane survey data reveals that the type-II bursts can be well detected for the Rapid Burster MXB 1730-335, with an average rate of 2 bursts min(-1) in a manner of the well-known relaxation oscillation. (C) 2020 Elsevier B.V. All rights reserved.
KeywordMethods: data analysis X-rays: variable sources Telescope: Insight-HXMT
Funding OrganizationChina National Space Administration (CNSA) ; China National Space Administration (CNSA) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China National Space Administration (CNSA) ; China National Space Administration (CNSA) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China National Space Administration (CNSA) ; China National Space Administration (CNSA) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China National Space Administration (CNSA) ; China National Space Administration (CNSA) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China
DOI10.1016/j.jheap.2020.02.002
WOS KeywordIMAGE-RECONSTRUCTION ; RAY ; RESOLUTION
Language英语
Funding ProjectChina National Space Administration (CNSA) ; Chinese Academy of Sciences (CAS) ; National Program on Key Research and Development Project[2016YFA0400802] ; National Natural Science Foundation of China[U1838202] ; National Natural Science Foundation of China[U1838201] ; National Natural Science Foundation of China[11703028]
Funding OrganizationChina National Space Administration (CNSA) ; China National Space Administration (CNSA) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China National Space Administration (CNSA) ; China National Space Administration (CNSA) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China National Space Administration (CNSA) ; China National Space Administration (CNSA) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China National Space Administration (CNSA) ; China National Space Administration (CNSA) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000539289100002
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/83307
Collection中国科学院国家天文台
Corresponding AuthorGuan, Ju
Affiliation1.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Natl Astron Observ, Key Lab Space Astron & Technol, Beijing 100012, Peoples R China
Recommended Citation
GB/T 7714
Guan, Ju,Lu, Fang-Jun,Zhang, Shu,et al. A modified direct demodulation method applied to Insight-HXMT Galactic plane scanning survey[J]. JOURNAL OF HIGH ENERGY ASTROPHYSICS,2020,26:11-20.
APA Guan, Ju.,Lu, Fang-Jun.,Zhang, Shu.,Song, Li-Ming.,Chen, Yong.,...&Zhang, Shuang-Nan.(2020).A modified direct demodulation method applied to Insight-HXMT Galactic plane scanning survey.JOURNAL OF HIGH ENERGY ASTROPHYSICS,26,11-20.
MLA Guan, Ju,et al."A modified direct demodulation method applied to Insight-HXMT Galactic plane scanning survey".JOURNAL OF HIGH ENERGY ASTROPHYSICS 26(2020):11-20.
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