NAOC Open IR
Insight-HXMT study of the timing properties of Sco X-1 The Insight-HXMT Collaboration
Jia, S. M.1,2; Bu, Q. C.1,3; Qu, J. L.1,2; Lu, F. J.1; Zhang, S. N.1,2; Huang, Y.1,2; Ma, X.1; Tao, L.1; Xiao, G. C.1,2; Zhang, W.1,2; Chen, L.4; Song, L. M.1,2; Zhang, S.1; Li, T. P.1,2,5; Xu, Y. P.1,2; Cao, X. L.1; Chen, Y.1; Liu, C. Z.1; Cai, C.1,2; Chang, Z.1; Chen, G.1; Chen, T. X.1; Chen, Y. B.6; Chen, Y. P.1; Cui, W.5; Cui, W. W.1; Deng, J. K.6; Dong, Y. W.1; Du, Y. Y.1; Fu, M. X.6; Gao, G. H.1,2; Gao, H.1,2; Gao, M.1; Ge, M. Y.1; Gu, Y. D.1; Guan, J.1; Guo, C. C.1,2; Han, D. W.1; Huo, J.1; Jiang, L. H.1; Jiang, W. C.1; Jin, J.1; Jin, Y. J.7; Kong, L. D.1,2; Li, B.1; Li, C. K.1; Li, G.1; Li, M. S.1; Li, W.1; Li, X.1; Li, X. B.1; Li, X. F.1; Li, Y. G.1; Li, Z. W.1; Liang, X. H.1; Liao, J. Y.1; Liu, G. Q.6; Liu, H. W.1; Liu, X. J.1; Liu, Y. N.7; Lu, B.1; Lu, X. F.1; Luo, Q.1,2; Luo, T.1; Meng, B.1; Nang, Y.1,2; Nie, J. Y.1; Ou, G.1; Sai, N.1,2; Shang, R. C.6; Song, X. Y.1; Sun, L.1; Tan, Y.1; Tuo, Y. L.1,2; Wang, C.2,8; Wang, G. F.1; Wang, J.1; Wang, W. S.1; Wang, Y. S.1; Wen, X. Y.1; Wu, B. Y.1,2; Wu, B. B.1; Wu, M.1; Xiao, S.1,2; Xiong, S. L.1; Yang, J. W.1; Yang, S.1; Yang, Y. J.1; Yin, Q. Q.1; Yi, Q. B.1,2; You, Y.1,2; Zhang, A. M.1; Zhang, C. M.1; Zhang, F.1; Zhang, H. M.1; Zhang, J.1; Zhang, T.1; Zhang, W. C.1; Zhang, W. Z.4; Zhang, Y.1; Zhang, Y. F.1; Zhang, Y. J.1; Zhang, Z.6; Zhang, Z. L.1; Zhao, H. S.1; Zhao, X. F.1,2; Zheng, S. J.1; Zhou, D. K.1,2; Zhou, J. F.7; Zhu, Y. X.1,2; Zhu, Y.1; Zhuang, R. L.7
2020-03-01
Source PublicationJOURNAL OF HIGH ENERGY ASTROPHYSICS
ISSN2214-4048
Volume25Pages:1-9
AbstractWe present a detailed timing study of the brightest persistent X-ray source Sco X-1 using the data collected by the Hard X-ray Modulation Telescope (Insight-HXMT) from July 2017 to August 2018. Acomplete Z-track hardness-intensity diagram (HID) is obtained. The normal branch oscillations (NBOs) at similar to 6 Hz in the lower part of the normal branch (NB) and the flare branch oscillations (FBOs) at similar to 16 Hz in the beginning part of the flaring branch (FB) are found in observations with the Low Energy Xray Telescope (LE) and the Medium Energy X-ray Telescope (ME) of Insight-HXMT, while the horizontal branch oscillations (HBOs) at similar to 40 Hz and the kilohertz quasi-periodic oscillations (kHz QPOs) at similar to 800 Hz are found simultaneously above 20 keV for the first time on the horizontal branch (HB) by the High Energy X-ray Telescope (HE) and ME. We find that for all types of the observed QPOs, the centroid frequencies are independent of energy, while the root mean square (rms) increases with energy; the centroid frequencies of both the HBOs and kHz QPOs increase along the Z-track from the top to the bottom of the HB; and the NBOs show soft phase lags increasing with energy. A continuous QPO transition from the FB to NB in similar to 200 s are also detected. Our results indicate that the non-thermal emission is the origin of all types of QPOs, the innermost region of the accretion disk is non-thermal in nature, and the corona is nonhomogeneous geometrically. (C) 2019 Elsevier B.V. All rights reserved.
KeywordX-rays Binaries - stars Individual Sco X-1
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 ; Bureau of International Cooperation, Chinese Academy of Sciences ; Bureau of International Cooperation, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; 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 ; Bureau of International Cooperation, Chinese Academy of Sciences ; Bureau of International Cooperation, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; 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 ; Bureau of International Cooperation, Chinese Academy of Sciences ; Bureau of International Cooperation, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; 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 ; Bureau of International Cooperation, Chinese Academy of Sciences ; Bureau of International Cooperation, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China
DOI10.1016/j.jheap.2019.11.001
WOS KeywordQUASI-PERIODIC OSCILLATIONS ; NORMAL-BRANCH OSCILLATION ; SPECTRAL BEHAVIOR ; SCORPIUS X-1 ; ATOLL SOURCE ; PHASE-LAG ; VARIABILITY ; MODEL ; DEPENDENCE ; FREQUENCY
Language英语
Funding ProjectChina National Space Administration (CNSA) ; Chinese Academy of Sciences (CAS) ; National Program on Key Research and Development Project[2016YFA0400801] ; Bureau of International Cooperation, Chinese Academy of Sciences[GJHZ1864] ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences[XDA15310300] ; National Natural Science Foundation of China[11733009] ; National Natural Science Foundation of China[11673023] ; National Natural Science Foundation of China[U1838201] ; National Natural Science Foundation of China[U1838202] ; National Natural Science Foundation of China[U1838111] ; National Natural Science Foundation of China[U1838115]
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 ; Bureau of International Cooperation, Chinese Academy of Sciences ; Bureau of International Cooperation, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; 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 ; Bureau of International Cooperation, Chinese Academy of Sciences ; Bureau of International Cooperation, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; 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 ; Bureau of International Cooperation, Chinese Academy of Sciences ; Bureau of International Cooperation, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; 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 ; Bureau of International Cooperation, Chinese Academy of Sciences ; Bureau of International Cooperation, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000519994400001
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/56238
Collection中国科学院国家天文台
Corresponding AuthorJia, S. M.
Affiliation1.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China
2.Univ Chinese Acad Sci, Chinese Acad Sci, Beijing 100049, Peoples R China
3.Eberhard Karls Univ Tubingen, Kepler Ctr Astro & Particle Phys, Inst Astron & Astrophys, D-72076 Tubingen, Germany
4.Beijing Normal Univ, Dept Astron, Beijing 100088, Peoples R China
5.Tsinghua Univ, Dept Astron, Beijing 100084, Peoples R China
6.Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
7.Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China
8.Chinese Acad Sci, Natl Astron Observ, Key Lab Space Astron & Technol, Beijing 100012, Peoples R China
Recommended Citation
GB/T 7714
Jia, S. M.,Bu, Q. C.,Qu, J. L.,et al. Insight-HXMT study of the timing properties of Sco X-1 The Insight-HXMT Collaboration[J]. JOURNAL OF HIGH ENERGY ASTROPHYSICS,2020,25:1-9.
APA Jia, S. M..,Bu, Q. C..,Qu, J. L..,Lu, F. J..,Zhang, S. N..,...&Zhuang, R. L..(2020).Insight-HXMT study of the timing properties of Sco X-1 The Insight-HXMT Collaboration.JOURNAL OF HIGH ENERGY ASTROPHYSICS,25,1-9.
MLA Jia, S. M.,et al."Insight-HXMT study of the timing properties of Sco X-1 The Insight-HXMT Collaboration".JOURNAL OF HIGH ENERGY ASTROPHYSICS 25(2020):1-9.
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