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Redshifts of PG 1553+113 limited by Fermi and VHE observations

文献类型：期刊论文

作者Yang, J. P.1,2; Yang, J. R.3,4; Wang, C. Y.1
刊名NEW ASTRONOMY
出版日期2013-01
卷号18页码:50-54
关键词Gamma-rays Observations - BL Lacertae objects Individual PG1553+113-diffuse radiation
ISSN号1384-1076
通讯作者Yang, JP (reprint author), Yunnan Agr Univ, Kunming 650201, Peoples R China.
英文摘要The goal of this paper is to limit the redshift of PG 1553 + 113, through the investigation of Fermi-LAT and very high energy (VHE) gamma-ray observations. We assume that the intrinsic spectra of PG 1553 + 113 do not have cutoff across the Fermi-LAT and VHE gamma-ray energy ranges. The intrinsic spectra of VHE gamma-rays are obtained through the extrapolation of Fermi-LAT spectra. Comparing the intrinsic with measured VHE spectra absorbed by extragalactic background light (EBL), we estimate the redshift upper limits of this blazar assuming a specific EBL model. The redshift upper limits of PG1553 + 113 is 0.514 at the 95% confidence level. Crown Copyright (C) 2012 Published by Elsevier B.v. All rights reserved.
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 ; BL LACERTAE OBJECTS ; ENERGY GAMMA-RAYS ; EXTRAGALACTIC BACKGROUND LIGHT ; RADIATION-FIELDS ; OPTICAL DEPTH ; GEV EMISSION ; SPECTRA ; BLAZARS ; ABSORPTION
收录类别SCI
原文出处http://www.sciencedirect.com/science/article/pii/S1384107612000516
语种英语
WOS记录号WOS:000310104400009
公开日期2016-06-01
源URL[http://ir.ynao.ac.cn/handle/114a53/9415]  
专题云南天文台_中国科学院天体结构与演化重点实验室
作者单位1.Yunnan Agricultural University, Kunming 650201, China
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China
3.Beijing Sport University, Beijing 100084, China
4.Chinese Academy of Social Sciences, Beijing 100732, China
推荐引用方式
GB/T 7714		 Yang, J. P.,Yang, J. R.,Wang, C. Y.. Redshifts of PG 1553+113 limited by Fermi and VHE observations[J]. NEW ASTRONOMY,2013,18:50-54.
APA Yang, J. P.,Yang, J. R.,&Wang, C. Y..(2013).Redshifts of PG 1553+113 limited by Fermi and VHE observations.NEW ASTRONOMY,18,50-54.
MLA Yang, J. P.,et al."Redshifts of PG 1553+113 limited by Fermi and VHE observations".NEW ASTRONOMY 18(2013):50-54.

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来源：云南天文台

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