GeV-TeV gamma-ray energy spectral break of BL Lac objects | |
Zhong, W.1; Liu, W. G.1; Zheng YG(郑永刚)1,2,3 | |
发表期刊 | ASTROPHYSICS AND SPACE SCIENCE |
2018-09-01 | |
卷号 | 363期号:9 |
DOI | 10.1007/s10509-018-3397-8 |
产权排序 | 第2完成单位 |
收录类别 | SCI |
关键词 | Bl Lacertae Objects: General Radiation Mechanisms: Non-thermal Methods: Statistical |
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. |
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] |
项目资助者 | National Natural Science Foundation of China[11463007, 11673060] ; Natural Science Foundation of Yunnan Province[2017FD072] |
语种 | 英语 |
学科领域 | 天文学 |
文章类型 | Article |
出版者 | SPRINGER |
出版地 | VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS |
ISSN | 0004-640X |
URL | 查看原文 |
WOS记录号 | WOS:000440618100002 |
WOS研究方向 | Astronomy & Astrophysics |
WOS类目 | Astronomy & Astrophysics |
关键词[WOS] | Extragalactic Background Light ; Optical Depth ; Blazars ; Discovery ; Emission ; Hess ; Radiation ; Distributions ; Evolution ; Universe |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ynao.ac.cn/handle/114a53/17392 |
专题 | 南方基地 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 |
通讯作者单位 | 中国科学院云南天文台 |
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). |
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GeV-TeV γ -ray energ(1180KB) | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 |
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