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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.
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2004-10-11
卷号354期号:1页码:81-85
DOI10.1111/j.1365-2966.2004.08164.x
产权排序第3完成单位
收录类别SCI
关键词Methods : Statistical Ism : Jets And Outflows Gamma-rays : Bursts Gamma-rays : Observations
摘要Based 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.
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0035-8711
URL查看原文
WOS记录号WOS:000224242100010
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]AFTERGLOW LIGHT CURVES ; STANDARD ENERGY RESERVOIR ; RELATIVISTIC JETS ; 2-COMPONENT JET ; VIEWING ANGLE ; EMISSION ; SPECTRA ; PARAMETERS ; EVOLUTION ; FLASHES
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被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/6969
专题星系研究组
通讯作者Liang, EW (reprint author), Nanjing Univ, Dept Astron, Nanjing 210093, Peoples R China.
作者单位1.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
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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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