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DISCERNING THE GAMMA-RAY-EMITTING REGION IN THE FLAT SPECTRUM RADIO QUASARS
Zheng, Y. G.1; Yang CY(杨初源)2,3; Zhang, L.4; Wang JC(王建成)2,3; Zheng, Y. G.(Yunnan Normal Univ, Dept Phys, Kunming 650092, Peoples R China)
发表期刊ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
2017
卷号228期号:1
DOI10.3847/1538-4365/228/1/1
产权排序第2完成单位
收录类别SCI
关键词Galaxies: Jets Quasars: General Radiation Mechanisms: Non-thermal
摘要A model-dependent method is proposed to determine the location of the gamma-ray-emitting region for a given flat spectrum radio quasar (FSRQ). In the model, the extra-relativistic electrons are injected at the base of the jet and non-thermal photons are produced by both synchrotron radiation and inverse-Compton (IC) scattering in the energy dissipation region. The target photons dominating IC scattering originate from both synchrotron photons and external ambient photon fields, and the energy density of external radiation field is a function of the distance between the position of the dissipation region and a central supermassive black hole, and their spectra are seen in the comoving frame. Moreover, the energy dissipation region could be determined by the model parameter through reproducing the gamma-ray spectra. Such a model is applied to reproduce the quasi-simultaneous multi-wavelength observed data for 36 FSRQs. In order to define the width of the broad-line region (BLR) shell and dusty molecular torus (MT) shell, a simple numerical constraint is used to determine the outer boundary of the BLR and dusty MT. Our results show that (1) the gamma-ray-emitting regions are located at the range from 0.1 to 10 pc; (2) the gamma-ray-emitting regions are located outside the BLRs and within the dusty molecular tori; and (3) the gamma-ray-emitting regions are located closer to the dusty MT ranges than the BLRs. Therefore, it may be concluded that direct evidence for the far site scenario could be obtained on the basis of the model results.
项目资助者National Natural Science Foundation of China(11463007, 11573060, 11673060) ; Strategic Priority Research Program "the Emergence of Cosmological Structures" of the Chinese Academy of Sciences(XDB09000000) ; Science and Technology in support of Yunnan Province Talent(2012HB014) ; Natural Science Foundation of Yunnan Province(2013FD014, 2016FB003) ; Key Laboratory of Particle Astrophysics of Yunnan Province(2015DG035)
语种英语
学科领域天文学
文章类型Article
ISSN0067-0049
URL查看原文
WOS记录号WOS:000397309900001
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]ACTIVE GALACTIC NUCLEI ; LARGE-AREA TELESCOPE ; BROAD-LINE REGION ; ADVECTION-DOMINATED ACCRETION ; HOST-GALAXY STARLIGHT ; BRIGHT FERMI BLAZARS ; HIGH-ENERGY EMISSION ; AGN DUSTY TORI ; 3C 279 ; PKS 1510-089
引用统计
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/9925
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Zheng, Y. G.(Yunnan Normal Univ, Dept Phys, Kunming 650092, Peoples R China)
作者单位1.Department of Physics, Yunnan Normal University, Kunming, 650092, China
2.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China
3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, China
4.Department of Astronomy, Yunnan University, Kunming, 650091, China
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Zheng, Y. G.,Yang CY,Zhang, L.,et al. DISCERNING THE GAMMA-RAY-EMITTING REGION IN THE FLAT SPECTRUM RADIO QUASARS[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2017,228(1).
APA Zheng, Y. G.,Yang CY,Zhang, L.,Wang JC,&Zheng, Y. G..(2017).DISCERNING THE GAMMA-RAY-EMITTING REGION IN THE FLAT SPECTRUM RADIO QUASARS.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,228(1).
MLA Zheng, Y. G.,et al."DISCERNING THE GAMMA-RAY-EMITTING REGION IN THE FLAT SPECTRUM RADIO QUASARS".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 228.1(2017).
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