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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
Source PublicationPUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
2019
Volume131Issue:995Pages:12
DOI10.1088/1538-3873/aaeae6
Contribution Rank第2完成单位
Indexed BySCI
Keywordradiation mechanisms: non-thermal galaxies: active gamma-rays: galaxies
Abstract

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.

Funding ProjectNational Natural Science Foundation of China[11663008] ; National Natural Science Foundation of China[11673060] ; Applied and Basic Research Program of Yunnan Province[2016FB003]
Funding OrganizationNational Natural Science Foundation of China[11663008, 11673060] ; Applied and Basic Research Program of Yunnan Province[2016FB003]
Language英语
Subject Area天文学 ; 星系与宇宙学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherIOP PUBLISHING LTD
Publication PlaceTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0004-6280
URL查看原文
WOS IDWOS:000452378000001
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordEXTRAGALACTIC BACKGROUND LIGHT ; HIGH-ENERGY EMISSION ; LARGE-AREA TELESCOPE ; SELF-COMPTON MODEL ; MULTIWAVELENGTH OBSERVATIONS ; RELATIVISTIC JETS ; FLARING ACTIVITY ; RAY VARIABILITY ; BLACK-HOLES ; X-RAY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/18612
Collection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
Corresponding AuthorYang, Jianping
Affiliation1.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
Recommended Citation
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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