Insight-HXMT observation on 4U 1608-52: Evolving spectral properties of a bright type-I X-ray burst

被引：40

作者：

Chen, Y. P. ^{[1
]}

Zhang, S. ^{[1
,2
]}

Zhang, S. N. ^{[1
,2
]}

Ji, L. ^{[3
]}

Kong, L. D. ^{[1
,2
]}

Santangelo, A. ^{[3
]}

Qu, J. L. ^{[1
,2
]}

Lu, F. J. ^{[1
]}

Li, T. P. ^{[1
,2
,4
]}

Song, L. M. ^{[1
,2
]}

Xu, Y. P. ^{[1
]}

Cao, X. L. ^{[1
]}

Chen, Y. ^{[1
]}

Liu, C. Z. ^{[1
]}

Bu, Q. C. ^{[1
]}

Cai, C. ^{[1
]}

Chang, Z. ^{[1
]}

Chen, G. ^{[1
]}

Chen, L. ^{[4
]}

Chen, T. X. ^{[1
]}

Chen, Y. B. ^{[4
]}

Cui, W. ^{[1
,4
]}

Cui, W. W. ^{[1
]}

Deng, J. K. ^{[4
]}

Dong, Y. W. ^{[1
]}

Du, Y. Y. ^{[1
]}

Fu, M. X. ^{[4
]}

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
]}

Han, D. W. ^{[1
]}

Huang, Y. ^{[1
]}

Huo, J. ^{[1
]}

Jia, S. M. ^{[1
]}

Jiang, L. H. ^{[1
]}

Jiang, W. C. ^{[1
]}

Jin, J. ^{[1
]}

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
]}

机构：

[1] 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] Inst Astron & Astrophys, Sand 1, D-72076 Tubingen, Germany

[4] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China

[5] Beijing Normal Univ, Dept Astron, Beijing 100088, Peoples R China

[6] Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China

来源：

JOURNAL OF HIGH ENERGY ASTROPHYSICS | 2019年 / 24卷

基金：

中国国家自然科学基金;

关键词：

Stars: coronae; Stars: neutron; X-rays: individual (4U 1608-52); X-rays: binaries; X-rays: bursts; NEUTRON-STAR; ACCRETION;

D O I：

10.1016/j.jheap.2019.09.001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The evidences for the influence of thermonuclear (type-I) X-ray bursts upon the surrounding environments in neutron star low-mass X-ray binaries (LMXB) were detected previously via spectral and timing analyses. Benefitting from a broad energy coverage of Insight-HXMT, we analyze one photospheric radius expansion (PRE) burst, and find an emission excess at soft X-rays. Our spectral analysis shows that, such an excess is not likely relevant to the disk reflection induced by the burst emission and can be attributed to an enhanced pre-burst/persistent emission. We find that the burst and enhanced persistent emissions sum up to exceed Eddington luminosity by similar to 40 percentages. We speculate that the enhanced emission is from a region beyond the PRE radius, or through the Comptonization of the corona. (C) 2019 Elsevier B.V. All rights reserved.

引用

页码：23 / 29

页数：7

共 29 条

[1] The evolution of the accretion disk around 4U 1820-30 during a superburst [J].

Ballantyne, DR ;

Strohmayer, TE .

ASTROPHYSICAL JOURNAL, 2004, 602 (02) :L105-L108

[2] DISCOVERY OF X-RAY BURSTS FROM A REGION IN CONSTELLATION NORMA [J].

BELIAN, RD ;

CONNER, JP ;

EVANS, WD .

ASTROPHYSICAL JOURNAL, 1976, 206 (03) :L135-L138

[3] Effects of Thermonuclear X-Ray Bursts on Non-burst Emissions in the Soft State of 4U 1728-34 [J].

Bhattacharyya, Sudip ;

Yadav, J. S. ;

Sridhar, Navin ;

Chauhan, Jai Verdhan ;

Agrawal, P. C. ;

Antia, H. M. ;

Pahari, Mayukh ;

Misra, Ranjeev ;

Katoch, Tilak ;

Manchanda, R. K. ;

Paul, Biswajit .

ASTROPHYSICAL JOURNAL, 2018, 860 (02)

[4] Insight-HXMT Observations of 4U 1636-536: Corona Cooling Revealed with Single Short Type-I X-Ray Burst [J].

Chen, Y. P. ;

Zhang, S. ;

Qu, J. L. ;

Zhang, S. N. ;

Ji, L. ;

Kong, L. D. ;

Cao, X. L. ;

Chang, Z. ;

Chen, G. ;

Chen, L. ;

Chen, T. X. ;

Chen, Y. ;

Chen, Y. B. ;

Cui, W. ;

Cui, W. W. ;

Deng, J. K. ;

Dong, Y. W. ;

Du, Y. Y. ;

Fu, M. X. ;

Gao, G. H. ;

Gao, H. ;

Gao, M. ;

Ge, M. Y. ;

Gu, Y. D. ;

Guan, J. ;

Guo, C. C. ;

Han, D. W. ;

Hu, W. ;

Huang, Y. ;

Huo, J. ;

Jia, S. M. ;

Jiang, L. H. ;

Jiang, W. C. ;

Jin, J. ;

Jin, Y. J. ;

Li, B. ;

Li, C. K. ;

Li, G. ;

Li, M. S. ;

Li, T. P. ;

Li, W. ;

Li, X. ;

Li, X. B. ;

Li, X. F. ;

Li, Y. G. ;

Li, Z. J. ;

Li, Z. W. ;

Liang, X. H. ;

Liao, J. Y. ;

Liu, C. Z. .

ASTROPHYSICAL JOURNAL LETTERS, 2018, 864 (02)

[5] TYPE-I X-RAY BURSTS REVEAL A FAST CO-EVOLVING BEHAVIOR OF THE CORONA IN AN X-RAY BINARY [J].

Chen, Yu-Peng ;

Zhang, Shu ;

Zhang, Shuang-Nan ;

Li, Jian ;

Wang, Jian-Min .

ASTROPHYSICAL JOURNAL LETTERS, 2012, 752 (02)

[6] Thermonuclear X-ray bursts: theory vs. observations [J].

Cumming, A .

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 2004, 132 :435-445

[7] A NuSTAR observation of disc reflection from close to the neutron star in 4U 1608-52 [J].

Degenaar, N. ;

Miller, J. M. ;

Chakrabarty, D. ;

Harrison, F. A. ;

Kara, E. ;

Fabian, A. C. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2015, 451 (01) :L85-L89

[8] Accretion Disks and Coronae in the X-Ray Flashlight [J].

Degenaar, Nathalie ;

Ballantyne, David R. ;

Belloni, Tomaso ;

Chakraborty, Manoneeta ;

Chen, Yu-Peng ;

Ji, Long ;

Kretschmar, Peter ;

Kuulkers, Erik ;

Li, Jian ;

Maccarone, Thomas J. ;

Malzac, Julien ;

Zhang, Shu ;

Zhang, Shuang-Nan .

SPACE SCIENCE REVIEWS, 2018, 214 (01)

[9] THERMONUCLEAR (TYPE I) X-RAY BURSTS OBSERVED BY THE ROSSI X-RAY TIMING EXPLORER [J].

Galloway, Duncan K. ;

Muno, Michael P. ;

Hartman, Jacob M. ;

Psaltis, Dimitrios ;

Chakrabarty, Deepto .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2008, 179 (02) :360-422

[10] IMPROVED REFLECTION MODELS OF BLACK HOLE ACCRETION DISKS: TREATING THE ANGULAR DISTRIBUTION OF X-RAYS [J].

Garcia, J. ;

Dauser, T. ;

Lohfink, A. ;

Kallman, T. R. ;

Steiner, J. F. ;

McClintock, J. E. ;

Brenneman, L. ;

Wilms, J. ;

Eikmann, W. ;

Reynolds, C. S. ;

Tombesi, F. .

ASTROPHYSICAL JOURNAL, 2014, 782 (02)

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