ITP OpenIR  > 理论物理所2016年知识产出
Effect of gamma-ray burst (GRB) spectra on the empirical luminosity correlations and the GRB Hubble diagram
Lin, HN; Li, X; Chang, Z; Lin, HN (reprint author), Chongqing Univ, Dept Phys, Chongqing 401331, Peoples R China.
2016
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷号459期号:3页码:2501-2512
文章类型Article
摘要The spectra of gamma-ray bursts (GRBs) in a wide energy range can usually be well described by the Band function, which is a two smoothly jointed power laws cutting at a breaking energy. Below the breaking energy, the Band function reduces to a cut-off power law, while above the breaking energy it is a simple power law. However, for some detectors [such as the Swift-Burst Alert Telescope (BAT)] whose working energy is well below or just near the breaking energy, the observed spectra can be fitted to cut-off power law with enough precision. Besides, since the energy band of Swift-BAT is very narrow, the spectra of most GRBs can be fitted well even using a simple power law. In this paper, with the most up-to-date sample of Swift-BAT GRBs, we study the effect of different spectral models on the empirical luminosity correlations, and further investigate the effect on the reconstruction of GRB Hubble diagram. We mainly focus on two luminosity correlations, i.e. the Amati relation and Yonetoku relation. We calculate these two luminosity correlations in both cases that the GRB spectra are modelled by Band function and cut-off power law. It is found that both luminosity correlations only moderately depend on the choice of GRB spectra. Monte Carlo simulations show that Amati relation is insensitive to the high-energy power-law index of the Band function. As a result, the GRB Hubble diagram calibrated using luminosity correlations is almost independent on the GRB spectra.
关键词Gamma-ray Burst: General Cosmological Parameters
学科领域Astronomy & Astrophysics
资助者National Natural Science Fund of China (NSFC) [11305181, 11547305] ; National Natural Science Fund of China (NSFC) [11305181, 11547305] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF181CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF181CJ1] ; NSFC [11375203] ; NSFC [11375203] ; National Natural Science Fund of China (NSFC) [11305181, 11547305] ; National Natural Science Fund of China (NSFC) [11305181, 11547305] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF181CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF181CJ1] ; NSFC [11375203] ; NSFC [11375203]
DOIhttp://dx.doi.org/10.1093/mnras/stw817
关键词[WOS]COSMOLOGICAL IMPLICATIONS ; E-P,E-I-E-ISO CORRELATION ; INTRINSIC SPECTRA ; STANDARD CANDLES ; PEAK LUMINOSITY ; DARK ENERGY ; REDSHIFT ; MODEL ; CATALOG ; CALIBRATION
收录类别SCI
语种英语
资助者National Natural Science Fund of China (NSFC) [11305181, 11547305] ; National Natural Science Fund of China (NSFC) [11305181, 11547305] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF181CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF181CJ1] ; NSFC [11375203] ; NSFC [11375203] ; National Natural Science Fund of China (NSFC) [11305181, 11547305] ; National Natural Science Fund of China (NSFC) [11305181, 11547305] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF181CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF181CJ1] ; NSFC [11375203] ; NSFC [11375203]
WOS类目Astronomy & Astrophysics
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/21604
专题理论物理所2016年知识产出
通讯作者Lin, HN (reprint author), Chongqing Univ, Dept Phys, Chongqing 401331, Peoples R China.
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Lin, HN,Li, X,Chang, Z,et al. Effect of gamma-ray burst (GRB) spectra on the empirical luminosity correlations and the GRB Hubble diagram[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2016,459(3):2501-2512.
APA Lin, HN,Li, X,Chang, Z,&Lin, HN .(2016).Effect of gamma-ray burst (GRB) spectra on the empirical luminosity correlations and the GRB Hubble diagram.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,459(3),2501-2512.
MLA Lin, HN,et al."Effect of gamma-ray burst (GRB) spectra on the empirical luminosity correlations and the GRB Hubble diagram".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 459.3(2016):2501-2512.
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