DISCERNING THE GAMMA-RAY-EMITTING REGION IN THE FLAT SPECTRUM RADIO QUASARS

	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
刊名	ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
	2017
卷号	228 期号:1
关键词	galaxies: jets quasars: general radiation mechanisms: non-thermal
ISSN号	0067-0049
通讯作者	Zheng, Y. G.(Yunnan Normal Univ, Dept Phys, Kunming 650092, Peoples R China)
产权排序	第2完成单位
英文摘要	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.
学科主题	天文学
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	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
收录类别	SCI
原文出处	http://stacks.iop.org/0067-0049/228/i=1/a=1?key=crossref.0c737f95438c56b643472f4b5b143a69
语种	英语
WOS记录号	WOS:000397309900001
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/9925]
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
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
推荐引用方式 GB/T 7714	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.(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).