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Lin, HN; Li, X; Wang, S; Chang, Z; Lin, HN (reprint author), Chongqing Univ, Dept Phys, Chongqing 401331, Peoples R China.
Are long gamma-ray bursts standard candles?
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Language英语
KeywordGamma-ray Burst: General Supernovae: General Cosmological Parameters
AbstractGamma-ray bursts (GRBs) are widely proposed as an effective probe to trace the Hubble diagram of the Universe in high-redshift range. However, the calibration of GRBs is not as easy as that of Type-Ia supernovae (SNe Ia). Most calibrating methods at present make use one or some of the empirical luminosity correlations, e.g. Amati relation. One of the underlying assumptions of these calibrating methods is that the empirical correlation is universal over all redshifts. In this paper, we check to what extent this assumption holds. Assuming that SNe Ia exactly trace the Hubble diagram of the Universe, we re-investigate the Amati relation for low-redshift (z < 1.4) and high-redshift (z > 1.4) GRBs, respectively. It is found that the Amati relation of low-z GRBs differs from that of high-z GRBs at more than 3 sigma confidence level. This result is insensitive to cosmological models. We should be cautious when using Amati relation to reconstruct the Hubble diagram of the Universe.
2015
Volume453Issue:1Pages:128-132
Subject AreaAstronomy & Astrophysics
DOIhttp://dx.doi.org/10.1093/mnras/stv1624
Indexed BySCI
Funding OrganizationNational Natural Science Fund of China [11375203, 11305181, 11322545, 11335012] ; National Natural Science Fund of China [11375203, 11305181, 11322545, 11335012] ; National Natural Science Fund of China [11375203, 11305181, 11322545, 11335012] ; National Natural Science Fund of China [11375203, 11305181, 11322545, 11335012] ; project of Knowledge Innovation Program of Chinese Academy of Sciences ; project of Knowledge Innovation Program of Chinese Academy of Sciences ; project of Knowledge Innovation Program of Chinese Academy of Sciences ; project of Knowledge Innovation Program of Chinese Academy of Sciences
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/20831
Collection理论物理所科研产出_SCI论文
Corresponding AuthorLin, HN (reprint author), Chongqing Univ, Dept Phys, Chongqing 401331, Peoples R China.
Recommended Citation
GB/T 7714
Lin, HN,Li, X,Wang, S,et al. Are long gamma-ray bursts standard candles?[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2015,453(1):128-132.
APA Lin, HN,Li, X,Wang, S,Chang, Z,&Lin, HN .(2015).Are long gamma-ray bursts standard candles?.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,453(1),128-132.
MLA Lin, HN,et al."Are long gamma-ray bursts standard candles?".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 453.1(2015):128-132.
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