| 伽马射线暴的光度-光变复杂度关系 |
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| 引用本文： | 李兆升,陈黎,王德华.伽马射线暴的光度-光变复杂度关系[J].天文学进展,2011,29(2). |
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| 作者姓名： | 李兆升 陈黎 王德华 |
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| 作者单位： | 北京师范大学,天文系,北京,100875 |
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| 基金项目： | 国家自然科学基金，973计划，北京师范大学自主科研基金，中央高校基本科研业务费专项资金 |
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| 摘 要： | 伽马射线暴的光变复杂度是描述其光变曲线复杂程度的物理量.由已知红移的伽马射线暴,Reichart等人发现其光变复杂度与各向同性光度之间有正相关性(LαVα,α在1.77～3.5之间),即光变越复杂,光度越高.此相关性类似于造父变星的周光关系,可用来估计伽马暴的距离和红移.调研、分析了各种光变复杂度的定义、算法和光变复杂度-各向同性光度关系的拟合结果,最后对光变复杂度和光度之间的关系做了总结和展望.
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| 关 键 词： | 伽马射线暴 瞬时辐射 光变复杂度 |
The Correlation Between Variability and Luminosity for the Long Gamma-Ray Bursts |
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| LI Zhao-sheng,CHEN Li,WANG De-hua.The Correlation Between Variability and Luminosity for the Long Gamma-Ray Bursts[J].Progress In Astronomy,2011,29(2). |
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| Authors: | LI Zhao-sheng CHEN Li WANG De-hua |
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| Institution: | LI Zhao-sheng,CHEN Li,WANG De-hua (Department of Astronomy,Beijing Normal University,Beijing 100875,China) |
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| Abstract: | The variability of Gamma-ray Burst is a quantitative measure of whether its light curve is spiky or smooth.From the detected spectroscopic redshift,peak fluxes,and high-resolution light curves of long Gamma-ray Burst,it was found that the isotropic peak luminosity positively correlate with the variability of light curves:the more variable bursts(with larger V) tend to have higher intrinsic isotropic luminosities L.This correlation was originally found by Reichart et al.using a sample of 18 Gamma-ray Bursts.... |
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| Keywords: | gamma-ray burst prompt emission variability |
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