Statistical analysis on X-ray flares from the nucleus and HST-1 knot in the M87 jet
文献类型:期刊论文
作者 | Yang, Shenbang1; Yan DH(闫大海)2,3; Dai, Benzhong1; Zhang, Pengfei1; Zhu, Qianqian4; Wang JC(王建成)2,3; Zhang, Li1 |
刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY |
出版日期 | 2019-10-01 |
卷号 | 489期号:2页码:2685-2693 |
ISSN号 | 0035-8711 |
关键词 | radiation mechanisms: non-thermal galaxies: jets X-rays: individual: M87 |
DOI | 10.1093/mnras/stz2302 |
产权排序 | 第2完成单位 |
文献子类 | Article |
英文摘要 | 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. |
学科主题 | 天文学 ; 天体物理学 ; 高能天体物理学 ; 星系与宇宙学 |
URL标识 | 查看原文 |
出版地 | GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND |
WOS关键词 | SELF-ORGANIZED CRITICALITY ; BLACK-HOLE ; VARIABILITY ; CHANDRA ; INSTABILITY |
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] |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | OXFORD UNIV PRESS |
WOS记录号 | WOS:000489298100090 |
资助机构 | 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] |
源URL | [http://ir.ynao.ac.cn/handle/114a53/21393] |
专题 | 云南天文台_高能天体物理研究组 云南天文台_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 |
推荐引用方式 GB/T 7714 | 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. |
入库方式: OAI收割
来源:云南天文台
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