The connection between radio and gamma-ray emission in Fermi/LAT blazars
文献类型：期刊论文
| 作者 | Fan XL(范绪亮)1,2,4 ; Bai JM(白金明)1,2; Liu HT(刘洪涛)1,2; Chen, L3; Liao NH(廖能惠)1,2,4
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| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
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| 出版日期 | 2012-11 |
| 卷号 | 12期号:11页码:1475-1485 |
| 关键词 | BL Lacertae objects: general galaxies: jets quasars: general radio continuum: galaxies gamma rays: observations |
| ISSN号 | 1674-4527 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Fan, XL (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China. |
| 英文摘要 | We 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-gamma 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 gamma-ray energy increases. The statistical results between various parameters show negative correlations of gamma-ray photon spectral index with gamma-ray loudness for both Flat Spectrum Radio Quasars (FSRQs) and BL Lacertae objects, positive correlations of gamma-ray variability index with the gamma-ray loudness for FSRQs, a negative correlation of the gamma-ray variability index with the gamma-ray photon spectral index for FSRQs, and negative correlations of gamma-ray photon spectral index with gamma-ray luminosity for FSRQs. These results suggest that the gamma-ray variability may be due to changes inside the gamma-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 gamma-rays are closer to the high energy peak of the spectral energy distribution (SED). No correlation of variability index found for BL Lacertae objects implies that variability behavior may differ below and above the peak energy. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | LARGE-AREA TELESCOPE ; ACTIVE GALACTIC NUCLEI ; JET ; CATALOG ; VARIABILITY ; PROGRAM ; FLARES ; ERA |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/article/10.1088/1674-4527/12/11/003/meta |
| 语种 | 英语 |
| WOS记录号 | WOS:000311523700003 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/5415]  |
| 专题 | 云南天文台_丽江天文观测站（南方基地） 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.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011, China 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China 3.Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatories, Chinese Academy of Sciences, Shanghai 200030, China 4.Graduate University of Chinese Academy of Sciences, Beijing 100049, China |
| 推荐引用方式 GB/T 7714 | Fan XL,Bai JM,Liu HT,et al. The connection between radio and gamma-ray emission in Fermi/LAT blazars[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2012,12(11):1475-1485. |
| APA | Fan XL,Bai JM,Liu HT,Chen, L,&Liao NH.(2012).The connection between radio and gamma-ray emission in Fermi/LAT blazars.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,12(11),1475-1485. |
| MLA | Fan XL,et al."The connection between radio and gamma-ray emission in Fermi/LAT blazars".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 12.11(2012):1475-1485. |
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来源：云南天文台
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