| Relation between the ＂Double-Hump＂ Behavior in the Radio Band and the Broad-Line Luminosity for Blazars |
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| 作者单位： | Zhao-Hua Xie（Physics Department, Yunnan Normal University, Kunming 650092） ;
Hong Dai（Yunnan Astrophysics Center, Yunnan University, Kunming 650091;Graduate School of Chinese Academy of Sciences, Beijing 100049） ;
Jian-Ming Hao（Physics Department, Yunnan Normal University, Kunming 650092） ;
Lei-Ming Du（Physics Department, Yunnan Normal University, Kunming 650092） ;
Xiong Zhang（Physics Department, Yunnan Normal University, Kunming 650092） ; |
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| 摘 要： | The physics behind the spectral energy distribution (SED) of blazars remains open.We assembled 36 blazars to tackle the factors that control their SED. Now, many blazar spectra have the "double hump" feature in the radio and far-IR frequencies. For these a parameter,△, is created to characterize the behavior of the SED. We found a significant correlation between the broad-line luminosity (LBLR) and △. Because LBLR is an indicator of the accreting power of the source in blazars, we derived a linear correlation,△∝ (M)1/3. 18, which suggests that the SED of blazars may depend on the accretion rate, like that of BL Lac objects. We also found a significant correlation between (m) and△ for a sample of 11 blazars (out of one of 36)with available black hole masses. This implies the Eddington accretion ratio may influence the shape of the SED of blazars.
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| 关 键 词： | 耀变体 类星体 射电波段 宽线光度 双峰现象 相关性 |
Relation between the "Double-Hump" Behavior in the Radio Band and the Broad-Line Luminosity for Blazars |
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| Authors: | Zhao-Hua Xie Hong Dai Jian-Ming Hao Lei-Ming Du Xiong Zhang |
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| Institution: | [1]Physics Department, Yunnan Normal University, Kunming 650092 [2]Yunnan Astrophysics Center, Yunnan University, Kunming 650091 [3]Graduate School of Chinese Academy of Sciences, Beijing 100049 |
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| Abstract: | |
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| Keywords: | accretion: accretion disks - black hole physics - galaxies: active - galaxies:emission lines - galaxies: nuclei |
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