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Testing the predictions of the universal structured jet model of gamma-ray bursts by simulations
Liang EW(梁恩维)1,2,3; Wu, XF1; Dai, ZG1; Liang, EW (reprint author), Nanjing Univ, Dept Astron, Nanjing 210093, Peoples R China.
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2004-10-11
Volume354Issue:1Pages:81-85
DOI10.1111/j.1365-2966.2004.08164.x
Contribution Rank第3完成单位
Indexed BySCI
KeywordMethods : Statistical Ism : Jets And Outflows Gamma-rays : Bursts Gamma-rays : Observations
AbstractBased on the standard energy reservoir of gamma-ray burst (GRB) jets and the relationship between the peak energy (E(p)) of the nuF(nu) spectrum and the equivalent isotropic energy (E(iso)), we test the GRB probability distributions as a function of viewing angle (theta) and of viewing angle together with redshift (z), P(theta) and P(theta, z), predicted by the universal structured jet (USJ) model with simulations on observational bases for a detection threshold of S > 4 x 10(-5) erg cm(-2), where S is the total fluence in an energy band >20 keV. We simulate a sample including 10(6) GRBs, and then derive P(theta) and P(theta, z). We show that both simulated and theoretical P(theta) and P(theta, z) are consistent with each other. This consistency seems to be regarded as support for the USJ model. A small difference between the theoretical and simulated results might be due to the observed E(p) distribution used in our simulations, which perhaps suffers a little of biases for E(p) < 100 keV.
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0035-8711
URL查看原文
WOS IDWOS:000224242100010
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordAFTERGLOW LIGHT CURVES ; STANDARD ENERGY RESERVOIR ; RELATIVISTIC JETS ; 2-COMPONENT JET ; VIEWING ANGLE ; EMISSION ; SPECTRA ; PARAMETERS ; EVOLUTION ; FLASHES
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Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6969
Collection星系研究组
Corresponding AuthorLiang, EW (reprint author), Nanjing Univ, Dept Astron, Nanjing 210093, Peoples R China.
Affiliation1.Astronomy Department, Nanjing University, Nanjing 210093, China
2.Physics Department, Guangxi University, Nanning 530004, China
3.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Liang EW,Wu, XF,Dai, ZG,et al. Testing the predictions of the universal structured jet model of gamma-ray bursts by simulations[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2004,354(1):81-85.
APA Liang EW,Wu, XF,Dai, ZG,&Liang, EW .(2004).Testing the predictions of the universal structured jet model of gamma-ray bursts by simulations.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,354(1),81-85.
MLA Liang EW,et al."Testing the predictions of the universal structured jet model of gamma-ray bursts by simulations".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 354.1(2004):81-85.
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