NAOC Open IR
theconnectionbetweenradioandrayemissioninfermilatblazars
Fan Xuliang1; Bai Jinming1; Liu Hongtao1; Liang Chen2; Liao Nenghui1
2012
Source Publicationresearchinastronomyandastrophysics
ISSN1674-4527
Volume012Issue:011Pages:1475
AbstractWe collect the second Large Area Telescope AGN catalog (2LAC) and Monitor of Jets in AGN with VLBA Equipment (MOJAVE) quasi-simultaneous data to investigate the radio-γ connection of blazars. The cross sample contains 166 sources. The statistical analysis based on this sample confirms positive correlations between these two bands, but the correlations become weaker as the γ-ray energy increases. The statistical results between various parameters show negative correla- tions of γ-ray photon spectral index with γ-ray loudness for both Flat Spectrum Radio Quasars (FSRQs) and BL Lacertae objects, positive correlations of γ-ray variability index with the γ-ray loudness for FSRQs, a negative correlation of the γ-ray variabil- ity index with the γ-ray photon spectral index for FSRQs, and negative correlations of γ-ray photon spectral index with γ-ray luminosity for FSRQs. These results suggest that the γ-ray variability may be due to changes inside the γ-ray emission region like the injected power, rather than changes in the photon density of the external radiation fields, and the variability amplitude tends to be larger as the γ-rays are closer to the high energy peak of the spectral energy distribution (SED). No correlation of variabil- ity index found for BL Lacertae objects implies that variability behavior may differ below and above the peak energy.
Language英语
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/48691
Collection中国科学院国家天文台
Affiliation1.中国科学院国家天文台
2.中国科学院
First Author AffilicationNational Astronomical Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Fan Xuliang,Bai Jinming,Liu Hongtao,et al. theconnectionbetweenradioandrayemissioninfermilatblazars[J]. researchinastronomyandastrophysics,2012,012(011):1475.
APA Fan Xuliang,Bai Jinming,Liu Hongtao,Liang Chen,&Liao Nenghui.(2012).theconnectionbetweenradioandrayemissioninfermilatblazars.researchinastronomyandastrophysics,012(011),1475.
MLA Fan Xuliang,et al."theconnectionbetweenradioandrayemissioninfermilatblazars".researchinastronomyandastrophysics 012.011(2012):1475.
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