| 耀变体的偏振与核主导系数 |
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| 引用本文： | 欧阳志昊,冯焕坚,郑奕妮,周泽平,徐佩珊,何思乐,李云天,罗高涌,庹满先,杨江河,樊军辉.耀变体的偏振与核主导系数[J].吉首大学学报(自然科学版),2020,41(4):54-61. |
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| 作者姓名： | 欧阳志昊 冯焕坚 郑奕妮 周泽平 徐佩珊 何思乐 李云天 罗高涌 庹满先 杨江河 樊军辉 |
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| 作者单位： | (1.广州大学物理与电子工程学院，广东 广州 510006;2.广州大学天体物理中心，广东 广州 510006;3.广东省教育厅天文科学技术研究室，广东 广州 510006;4.湖南文理学院数理学院，湖南 常德 415000 ) |
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| 摘 要： | 收集了一个具有光学和射电偏振的blazar样本，讨论了光学和射电偏振与喷流参数之间的关系.第一，蝎虎天体(BL Lac object，BL Lac)的偏振高于平谱射电源(Flat Spectrum Radio Quasar，FSRQ)的偏振, 核主导系数R和比率f都正比于本征射电和光学偏振；第二，基于该样本, 可得喷流是球型的；第三，BL Lac和FSRQ具有相似的本征偏振与喷流参量(log R和f)的关系.
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| 关 键 词： | 活动星系核 喷流 BL Lac天体 平谱射电源 |
Polarization and Core-Dominance Parameter for Blazars |
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| OUYANG Zhihao,FENG Huanjian,ZHENG Yini,ZHOU Zeping,XU Peishan,HE Sile,LI Yuntian,LUO Gaoyong,TUO Manxian,YANG Jianghe,FAN Junhui.Polarization and Core-Dominance Parameter for Blazars[J].Journal of Jishou University(Natural Science Edition),2020,41(4):54-61. |
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| Authors: | OUYANG Zhihao FENG Huanjian ZHENG Yini ZHOU Zeping XU Peishan HE Sile LI Yuntian LUO Gaoyong TUO Manxian YANG Jianghe FAN Junhui |
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| Institution: | (1. Schoolof Physics and Electronic Engineering, Guangzhou University, Guangzhou 510006, China; 2. Center for Astrophysics, Guangzhou University, Guangzhou 510006, China; 3. Astronomy Science and Technology Research Laboratory, Department of Education of Guangdong Province, Guangzhou 510006, China; 4. College of Mathematics and Physics Science, Hunan University of Arts and Science, Changde 415000, Hunan China) |
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| Abstract: | Radio and optical polarizations are collected for a blazar sample. The relationships between polarization and jet parameters are investigated. The analysis results indicate that (1) polarization in BL Lac is higher than in FSRQs, and the core dominance parameter R and the ratio f are both positively correlated with intrinsic radio and optical polarizations; (2) the jet type is spherical; (3) BL Lacs and FSRQs have a similar correlation between the intrinsic polarization and jet parameters (log R and f). |
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| Keywords: | active galactic nuclei jets BL Lacertae objects flat-spectrum radio quasar |
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