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Are long gamma-ray bursts standard candles?
Lin H.-N.; X. Li; S. Wang; Z. Chang; Chang Z(常哲)
2015
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷号453期号:1页码:128-132
摘要Gamma-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.
文章类型Article
关键词gamma-ray burst: general supernovae: general cosmological parameters
学科领域Astronomy & Astrophysics
DOI10.1093/mnras/stv1624
收录类别SCI
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000366215500013
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被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228965
专题理论物理室
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Lin H.-N.,X. Li,S. Wang,et al. Are long gamma-ray bursts standard candles?[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2015,453(1):128-132.
APA Lin H.-N.,X. Li,S. Wang,Z. Chang,&常哲.(2015).Are long gamma-ray bursts standard candles?.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,453(1),128-132.
MLA Lin H.-N.,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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