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Curvature of the spectral energy distribution, the inverse Compton component and the jet in Fermi 2LAC blazars
Xue, R.1; Luo, D.1; Du, L. M.1; Wang, Z. R.1; Xie, Z. H.1; Yi, T. F.1; Xiong DR(熊定荣)2; Xu, Y. B.1; Liu, W. G.1; Yu, X. L.1; Du, L. M.(Yunnan Normal Univ, Dept Phys, Kunming 650500, Peoples R China)
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2016-12-01
卷号463期号:3页码:3038-3055
DOI10.1093/mnras/stw2038
产权排序第2完成单位
收录类别SCI
关键词Acceleration Of Particles Radiation Mechanisms: Non-thermal Methods: Statistical Galaxies: Active Bl Lacertae Objects: General Galaxies: Jets
摘要We fitted the spectral energy distributions (SEDs) of members of a large sample of Fermi 2LAC blazars to synchrotron and inverse Compton (IC) models. Our main results are as follows. (i) As suggested by previous works, the correlation between the peak frequency and curvature can be explained by statistical or stochastic particle acceleration mechanisms. For BL Lacs, we found a linear correlation between the synchrotron peak frequency and its curvature. The slope of the correlation is consistent with stochastic acceleration mechanisms and confirms the results of previous studies. For flat-spectrum radio quasars (FSRQs), we also found a linear correlation, but in this case the slope cannot be explained by previous theoretical models. (ii) We found a significant correlation between IC luminosity and synchrotron luminosity. The slope of the correlation for FSRQs is consistent with the external Compton (EC) process. The slope of the correlation for BL Lacs is consistent with the synchrotron self-Compton (SSC) process. (iii) We found several significant correlations between IC curvature and various basic parameters of blazars (black hole mass, broad-line luminosity, the Lorentz factor of the jet). We also found significant correlations between the bolometric luminosity and these basic parameters of blazars, which suggests that the origin of jets is a mixture of the mechanisms proposed by Blandford & Znajek and by Blandford & Payne.
项目资助者National Natural Science Foundation of China (NSFC)(U1431123, 11263006, 11463001) ; Chinese Academy of Sciences (CAS)(U1431123, 11263006, 11463001) ; Provincial Natural Science Foundation of Yunnan(2013FZ042) ; Yunnan province education department project(2014Y138)
语种英语
学科领域天文学
文章类型Article
ISSN0035-8711
URL查看原文
WOS记录号WOS:000393566000058
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]ACTIVE GALACTIC NUCLEI ; BLACK-HOLE MASS ; LOG-PARABOLIC SPECTRA ; BL-LAC OBJECTS ; TEVBL LACERTAE OBJECTS ; LARGE-AREA TELESCOPE ; GAMMA-RAY BURSTS ; X-RAY ; PARTICLE-ACCELERATION ; ACCRETION DISKS
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/9920
专题丽江天文观测站(南方基地)
通讯作者Du, L. M.(Yunnan Normal Univ, Dept Phys, Kunming 650500, Peoples R China)
作者单位1.Departmentof Physics, Yunnan Normal University, Kunming 650500, China
2.National Astronomical Observatories/Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China
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Xue, R.,Luo, D.,Du, L. M.,et al. Curvature of the spectral energy distribution, the inverse Compton component and the jet in Fermi 2LAC blazars[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2016,463(3):3038-3055.
APA Xue, R..,Luo, D..,Du, L. M..,Wang, Z. R..,Xie, Z. H..,...&Du, L. M..(2016).Curvature of the spectral energy distribution, the inverse Compton component and the jet in Fermi 2LAC blazars.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,463(3),3038-3055.
MLA Xue, R.,et al."Curvature of the spectral energy distribution, the inverse Compton component and the jet in Fermi 2LAC blazars".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 463.3(2016):3038-3055.
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