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Diagnostic of the spectral properties of Aquila X-1 by Insight-HXMT snapshots during the early propeller phase

文献类型：期刊论文

作者Gungor, C.2,3; Ge, M. Y.2; Zhang, S.2; Santangelo, A.2,4; Zhang, S. N.1,2,5; Lu, F. J.2; Zhang, Y.1,2; Chen, Y. P.2; Tao, L.2; Yang, Y. J.2
刊名JOURNAL OF HIGH ENERGY ASTROPHYSICS
出版日期2020-03-01
卷号25页码:10-16
关键词Accretion Accretion disks Stars: neutron X-rays: binaries X-rays: individuals Aql X-1
ISSN号2214-4048
DOI10.1016/j.jheap.2019.12.001
英文摘要We study the 2018 outburst of Aql X-1 via the monitor of all sky X-ray image (MAXI) data. We show that the outburst starting in February 2018 is a member of short-lowclass in the frame of outburst duration and the peak count rate although the outburst morphology is slightly different from the other fastrise-exponential-decay (FRED) type outbursts with a milder rising stage. We study the partial accretion in the weak propeller stage of Aql X-1 via the MAXI data of the 2018 outburst. We report on the spectral analysis of 3 observations of Aquila X-1 obtained by Insight - hard X-ray modulation telescope (Insight-HXMT) during the late decay stage of the 2018 outburst. We discuss that the data taken by Insight-HXMT is just after the transition to the weak propeller stage. Our analysis shows the necessity of a comptonization component to take into account the existence of an electron cloud resulting photons partly up-scattered. (C) 2019 Elsevier B.V. All rights reserved.
WOS关键词X-RAY BINARIES ; SAX J1808.4-3658 ; DISK ACCRETION ; OUTBURST ; ASTROPHYSICS ; MORPHOLOGY ; BURSTS ; FITS
资助项目Chinese Academy of Sciences President's International Fellowship Initiative (CAS/PIFI) ; Chinese Academy of Sciences (CAS) ; National Key R&D Program of China[2016YFA0400800] ; National Natural Science Foundation of China[11473027] ; National Natural Science Foundation of China[11733009] ; National Natural Science Foundation of China[U1838201] ; National Natural Science Foundation of China[U1838202] ; National Natural Science Foundation of China[U1838104] ; China National Space Administration (CNSA)
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000519994400002
出版者ELSEVIER
资助机构Chinese Academy of Sciences President's International Fellowship Initiative (CAS/PIFI) ; Chinese Academy of Sciences President's International Fellowship Initiative (CAS/PIFI) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Key R&D Program of China ; National Key R&D Program of China ; 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 President's International Fellowship Initiative (CAS/PIFI) ; Chinese Academy of Sciences President's International Fellowship Initiative (CAS/PIFI) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Key R&D Program of China ; National Key R&D Program of China ; 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 President's International Fellowship Initiative (CAS/PIFI) ; Chinese Academy of Sciences President's International Fellowship Initiative (CAS/PIFI) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Key R&D Program of China ; National Key R&D Program of China ; 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 President's International Fellowship Initiative (CAS/PIFI) ; Chinese Academy of Sciences President's International Fellowship Initiative (CAS/PIFI) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China National Space Administration (CNSA) ; China National Space Administration (CNSA)
源URL[http://ir.bao.ac.cn/handle/114a11/56255]  
专题中国科学院国家天文台
通讯作者Gungor, C.
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, 19B Yuquan Rd, Beijing 100049, Peoples R China
3.Istanbul Univ, Sci Fac, Dept Astron & Space Sci, TR-34119 Istanbul, Turkey
4.Univ Tubingen, Inst Astron & Astrophys, Sand 1, D-72076 Tubingen, Germany
5.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
6.Beijing Normal Univ, Dept Astron, Beijing 100088, Peoples R China
7.Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
推荐引用方式
GB/T 7714		 Gungor, C.,Ge, M. Y.,Zhang, S.,et al. Diagnostic of the spectral properties of Aquila X-1 by Insight-HXMT snapshots during the early propeller phase[J]. JOURNAL OF HIGH ENERGY ASTROPHYSICS,2020,25:10-16.
APA Gungor, C..,Ge, M. Y..,Zhang, S..,Santangelo, A..,Zhang, S. N..,...&Zhu, Y. X..(2020).Diagnostic of the spectral properties of Aquila X-1 by Insight-HXMT snapshots during the early propeller phase.JOURNAL OF HIGH ENERGY ASTROPHYSICS,25,10-16.
MLA Gungor, C.,et al."Diagnostic of the spectral properties of Aquila X-1 by Insight-HXMT snapshots during the early propeller phase".JOURNAL OF HIGH ENERGY ASTROPHYSICS 25(2020):10-16.

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