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GeV-TeV gamma-ray energy spectral break of BL Lac objects

文献类型：期刊论文

作者Zhong, W.1; Liu, W. G.1; Zheng YG(郑永刚)1,2,3
刊名ASTROPHYSICS AND SPACE SCIENCE
出版日期2018-09-01
卷号363期号:9
ISSN号0004-640X
关键词Bl Lacertae Objects: General Radiation Mechanisms: Non-thermal Methods: Statistical
DOI10.1007/s10509-018-3397-8
产权排序第2完成单位
文献子类Article
英文摘要

In this paper, we compile the very-high-energy and high-energy spectral indices of 43 BL Lac objects from the literature. Based on a simple math model, , we present evidence for the origin of an observed spectral break that is denoted by the difference between the observed very-high-energy and high-energy spectral indices, . We find by linear regression analysis that and . These results suggest that the extragalactic background light attenuation and the intrinsic curvature dominate on the GeV-TeV -ray energy spectral break of BL Lac objects. We argue that the extragalactic background light attenuation is an exclusive explanation for the redshift evolution of the observed spectral break.

学科主题天文学
URL标识查看原文
出版地VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
WOS关键词Extragalactic Background Light ; Optical Depth ; Blazars ; Discovery ; Emission ; Hess ; Radiation ; Distributions ; Evolution ; Universe
资助项目National Natural Science Foundation of China[11463007] ; National Natural Science Foundation of China[11673060] ; Natural Science Foundation of Yunnan Province[2017FD072]
WOS研究方向Astronomy & Astrophysics
语种英语
出版者SPRINGER
WOS记录号WOS:000440618100002
资助机构National Natural Science Foundation of China[11463007, 11673060] ; Natural Science Foundation of Yunnan Province[2017FD072]
源URL[http://ir.ynao.ac.cn/handle/114a53/17392]  
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
通讯作者Zheng YG(郑永刚)
作者单位1.Department of Physics, Yunnan Normal University, Kunming, China
2.Yunnan Observatories, Chinese Academy of Sciences, Kunming, China
3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming, China
推荐引用方式
GB/T 7714		 Zhong, W.,Liu, W. G.,Zheng YG. GeV-TeV gamma-ray energy spectral break of BL Lac objects[J]. ASTROPHYSICS AND SPACE SCIENCE,2018,363(9).
APA Zhong, W.,Liu, W. G.,&Zheng YG.(2018).GeV-TeV gamma-ray energy spectral break of BL Lac objects.ASTROPHYSICS AND SPACE SCIENCE,363(9).
MLA Zhong, W.,et al."GeV-TeV gamma-ray energy spectral break of BL Lac objects".ASTROPHYSICS AND SPACE SCIENCE 363.9(2018).

入库方式： OAI收割

来源：云南天文台

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