Redshifts of PG 1553+113 limited by Fermi and VHE observations
Yang, J. P.1,2; Yang, J. R.3,4; Wang, C. Y.1; Yang, JP (reprint author), Yunnan Agr Univ, Kunming 650201, Peoples R China.
发表期刊NEW ASTRONOMY
2013-01
卷号18页码:50-54
DOI10.1016/j.newast.2012.05.008
收录类别SCI
关键词Gamma-rays Observations - Bl Lacertae Objects Individual pg1553+113-diffuse Radiation
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.
项目资助者National Natural Science Foundation of China(11163006) ; Department of Education of Yunnan Province(2011Z002)
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN1384-1076
URL查看原文
WOS记录号WOS:000310104400009
WOS研究方向Astronomy & Astrophysics
WOS类目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
引用统计
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/9415
专题中国科学院天体结构与演化重点实验室
通讯作者Yang, JP (reprint author), Yunnan Agr Univ, Kunming 650201, Peoples R China.
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
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Yang, J. P.,Yang, J. R.,Wang, C. Y.,et al. 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.,&Yang, JP .(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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