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Statistical analysis on X-ray flares from the nucleus and HST-1 knot in the M87 jet
Yang, Shenbang1; Yan DH(闫大海)2,3; Dai, Benzhong1; Zhang, Pengfei1; Zhu, Qianqian4; Wang JC(王建成)2,3; Zhang, Li1
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2019-10-01
卷号489期号:2页码:2685-2693
DOI10.1093/mnras/stz2302
产权排序第2完成单位
收录类别SCI ; EI
关键词radiation mechanisms: non-thermal galaxies: jets X-rays: individual: M87
摘要

The statistical properties of X-ray flares from two separate locations (nucleus and HST-1) in the M87 jet are investigated to reveal the physical origin of the flares. We analyse the archival Chandra data for M87, and identify 14 flares in the nucleus and nine flares in HST-1. The peak intensity (IP) and the flaring duration time (Tfl) for each flare are obtained. It is found that the distributions of both IP and Tfl for the nucleus obey a power law form with a similar index. A similar result is also obtained for HST-1, and no significant inconsistency between the nucleus and HST-1 is found for the indices. Similar to solar X-ray flares, the power-law distributions of the flare event parameters can be well explained by a self-organized criticality system, which are triggered by magnetic reconnection. Our results suggest that the flares from nucleus and HST-1 are possibly triggered by magnetic reconnection process. The consistent indices for the distributions of IP and Tfl in the nucleus and HST-1 indicate that the dimensions of the energy dissipation of the magnetic reconnection are identical in the two regions. A strong correlation between the flares in the two regions also suggests a similar physical origin for the flares.

资助项目National Key R&D Program of China[2018YFA0404204] ; National Natural Science Foundation of China[NSFC-11803081] ; National Natural Science Foundation of China[NSFC-U1738124] ; National Natural Science Foundation of China[NSFC-11573060] ; National Natural Science Foundation of China[NSFC-11661161010] ; National Natural Science Foundation of China[NSFC-U1531131] ; CAS 'Light of West China' Program ; Youth Innovation Promotion Association ; Yunnan Provincial Education Office Scientific Research Foundation Project[2019Y0023]
项目资助者National Key R&D Program of China[2018YFA0404204] ; National Natural Science Foundation of China[NSFC-11803081, NSFC-U1738124, NSFC-11573060, NSFC-11661161010, NSFC-U1531131] ; CAS 'Light of West China' Program ; Youth Innovation Promotion Association ; Yunnan Provincial Education Office Scientific Research Foundation Project[2019Y0023]
语种英语
学科领域天文学 ; 天体物理学 ; 高能天体物理学 ; 星系与宇宙学
学科门类理学 ; 理学::天文学
文章类型Article
出版者OXFORD UNIV PRESS
出版地GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
ISSN0035-8711
URL查看原文
WOS记录号WOS:000489298100090
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]SELF-ORGANIZED CRITICALITY ; BLACK-HOLE ; VARIABILITY ; CHANDRA ; INSTABILITY
EI入藏号20221712016400
EI主题词Energy dissipation
EI分类号525.4 Energy Losses (industrial and residential) - 701.2 Magnetism: Basic Concepts and Phenomena
引用统计
被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/21394
专题高能天体物理研究组
中国科学院天体结构与演化重点实验室
通讯作者Yan DH(闫大海); Dai, Benzhong
作者单位1.Key Laboratory of Astroparticle Physics of Yunnan Province, Yunnan University, Kunming 650091, China
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011, China
3.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012, China
4.Department of General Studies, Nanchang Institute of Science and Technology, Nanchang 330108, China
通讯作者单位中国科学院云南天文台
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Yang, Shenbang,Yan DH,Dai, Benzhong,et al. Statistical analysis on X-ray flares from the nucleus and HST-1 knot in the M87 jet[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2019,489(2):2685-2693.
APA Yang, Shenbang.,Yan DH.,Dai, Benzhong.,Zhang, Pengfei.,Zhu, Qianqian.,...&Zhang, Li.(2019).Statistical analysis on X-ray flares from the nucleus and HST-1 knot in the M87 jet.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,489(2),2685-2693.
MLA Yang, Shenbang,et al."Statistical analysis on X-ray flares from the nucleus and HST-1 knot in the M87 jet".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 489.2(2019):2685-2693.
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