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Long-term Multiband Study of High-redshift Blazar S5 0836+71
Yang, Jianping1; Yang CY(杨初源)2,3,4; Zhou, Bing1,5,6; Zeng, Wei5,6
发表期刊PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
2019
卷号131期号:995页码:12
DOI10.1088/1538-3873/aaeae6
产权排序第2完成单位
收录类别SCI
关键词radiation mechanisms: non-thermal galaxies: active gamma-rays: galaxies
摘要

We analyze 10 years of Fermi gamma-ray observations of the high-redshift blazar S5 0836+71 (z = 2.172) that showed a strong flare in 2015 characterized by a several-fold increase in the gamma-ray flux within a few days. The discrete correlation function between the gamma-ray and the R band (AZT-8) shows a highly significant (>99.9% confidence) correlation with the gamma-ray variations leading the R band by about 75 days. The spectral energy distributions are modeled, with the adoption of a synchrotron self-Compton plus external Compton (EC) model, to discuss the reasons of transition between the low- and high-flux states. In both the pre-flare and flare states, the EC seed photons might be dominated by reprocessed emission from the dusty torus rather than the broadline region (BLR). This implies the location of radiating blob outside the BLR and inside the dusty torus. From the pre-flare state to the flare state, delta and B decrease, whereas N-0 and gamma(max) increase accordingly. The results of the modeling suggest that the increase in the total number of emitting electrons and hardening of the power spectrum of emitting electrons are primary causes of the flare in gamma-rays.

资助项目National Natural Science Foundation of China[11663008] ; National Natural Science Foundation of China[11673060] ; Applied and Basic Research Program of Yunnan Province[2016FB003]
项目资助者National Natural Science Foundation of China[11663008, 11673060] ; Applied and Basic Research Program of Yunnan Province[2016FB003]
语种英语
学科领域天文学 ; 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IOP PUBLISHING LTD
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0004-6280
URL查看原文
WOS记录号WOS:000452378000001
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]EXTRAGALACTIC BACKGROUND LIGHT ; HIGH-ENERGY EMISSION ; LARGE-AREA TELESCOPE ; SELF-COMPTON MODEL ; MULTIWAVELENGTH OBSERVATIONS ; RELATIVISTIC JETS ; FLARING ACTIVITY ; RAY VARIABILITY ; BLACK-HOLES ; X-RAY
引用统计
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/18612
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Yang, Jianping
作者单位1.Yunnan Agricultural University, Kunming 650201, People's Republic of China
2.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, People's Republic of China
3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, People's Republic of China
4.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012, People's Republic of China
5.Department of Astronomy, Yunnan University, Kunming 650091, People's Republic of China
6.Key Laboratory of Astroparticle Physics of Yunnan Province, Yunnan University, Kunming 650091, People's Republic of China
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GB/T 7714
Yang, Jianping,Yang CY,Zhou, Bing,et al. Long-term Multiband Study of High-redshift Blazar S5 0836+71[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,2019,131(995):12.
APA Yang, Jianping,Yang CY,Zhou, Bing,&Zeng, Wei.(2019).Long-term Multiband Study of High-redshift Blazar S5 0836+71.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,131(995),12.
MLA Yang, Jianping,et al."Long-term Multiband Study of High-redshift Blazar S5 0836+71".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC 131.995(2019):12.
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