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The physical properties of Fermi TeV BL Lac objects' jets
Ding, N.1; Zhang, X.1; Xiong DR(熊定荣)2; Zhang, H. J.1; Ding, N.(Yunnan Normal Univ, Dept Phys, Kunming 650500, Peoples R China)
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2017
卷号464期号:1页码:599-612
DOI10.1093/mnras/stw2347
产权排序第2完成单位
收录类别SCI
关键词Radiation Mechanisms: Non-thermal Galaxies: Active Bl Lacertae Objects: General Galaxies: Jets
摘要We investigate the physical properties of Fermi TeV BL Lac objects' jets by modelling the quasi-simultaneous spectral energy distribution of 29 Fermi TeV BL Lacs in the frame of a one-zone leptonic synchrotron self-Compton model. Our main results are the following. (i) There is a negative correlation between B and delta in our sample, which suggests that B and delta are dependent on each other mainly in the Thomson regime. (ii) There are negative correlations between nu(sy) and r, the nu(IC) and r, which is a signature of the energy-dependent statistical acceleration or the stochastic acceleration. There is a significant correlation between r and s, which suggests that the curvature of the electron energy distribution is attributed to the energy-dependent statistical acceleration mechanism. (iii) By assuming one proton per relativistic electron, we estimate the jet power and radiative power. A size relation P-e similar to P-p > P-r greater than or similar to P-B is found in our sample. The P-e > P-B suggests that the jets are particle dominated, and the P-e similar to P-p means that the mean energy of relativistic electrons approaches m(p)/m(e). There are not significant correlations between P-jet and black hole mass in high or low state with a subsample of 18 sources, which suggests that the jet power weakly depends on the black hole mass. (iv) There is a correlation between the changes in the flux density at 1 TeV and the changes in the gamma(peak), which suggests that the change/evolution of electron energy distribution may be mainly responsible for the flux variation.
项目资助者Science Foundation of Yunnan Province of China(2012FB140, 2010CD046) ; National Nature Science Foundation of China(11063004, 11163007, U1231203) ; Yunnan Gravitation Theory Innovation Team(2011c1) ; High-Energy Astrophysics Science and Technology Innovation Team of Yunnan Higher School
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:000393646300044
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]ACTIVE GALACTIC NUCLEI ; SPECTRAL ENERGY-DISTRIBUTION ; LOG-PARABOLIC SPECTRA ; LARGE-AREA TELESCOPE ; SIMULTANEOUS MULTIWAVELENGTH OBSERVATIONS ; GAMMA-RAY EMISSION ; PARTICLE-ACCELERATION ; LACERTAE OBJECTS ; RADIO QUASARS ; ELECTRON ACCELERATION
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/9921
专题丽江天文观测站(南方基地)
通讯作者Ding, N.(Yunnan Normal Univ, Dept Phys, Kunming 650500, Peoples R China)
作者单位1.Department of Physics, Yunnan Normal University, Kunming 650500, China
2.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China
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Ding, N.,Zhang, X.,Xiong DR,et al. The physical properties of Fermi TeV BL Lac objects' jets[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2017,464(1):599-612.
APA Ding, N.,Zhang, X.,Xiong DR,Zhang, H. J.,&Ding, N..(2017).The physical properties of Fermi TeV BL Lac objects' jets.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,464(1),599-612.
MLA Ding, N.,et al."The physical properties of Fermi TeV BL Lac objects' jets".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 464.1(2017):599-612.
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