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星风和柱形喷流对伽玛射线暴余辉的联合作用

The Joint Effect of Wind Environment and Cylindrical Jets on GRB Afterglow
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摘要 假设介质的数密度随激波半径呈幂律分布:next∝R-K.基于统一动力学模型和柱形喷流模型,用数值计算方法系统计算了K=2(即星风环境下)的动力学量随时间的演化,并计算了光学余辉和射电余辉随时间的演化,得出了相关的规律. Assuming that the density of medium is a power-law distribution of shock radius: next∝R^-K. Basing on the generic dynamical model proposed by Huang et al and the model of cylindrical jet established by Cheng, in the case of K= 2(i. e. stellar wind medium), we numerically calculate the evolution of dynamics with time in detail. Finally, we calculate the evolution of optical afterglows and radio afterglows with time, and summarizing the correlative laws of evolution.
出处 《湖南师范大学自然科学学报》 CAS 北大核心 2008年第2期59-63,共5页 Journal of Natural Science of Hunan Normal University
基金 湖南省教育厅科研基金资助项目(06C225)
关键词 柱形喷流 伽玛射线暴 激波 统一动力学模型 cylindrical jets gamma-ray bursts(GRBs) shock wave generic dynamical model
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参考文献14

  • 1DADO S, DAR A, DERUJULA A. The supernova associated with GRB 030329[J]. Ap J, 2003, 594: 89-92. 被引量:1
  • 2MAZZALI P A, DENG J, TOMINAGA N, et al. The type Ic hypemova SN 2003dh/GRB 030329[J]. Ap J, 2003, 599: 95- 98. 被引量:1
  • 3CHWVALIER R A, LI Z Y, FRANSSON C. The diversity of gamma-ray burst afterglows and the surroundings of massive stars [J]. Ap J, 2004, 606(1):369-380. 被引量:1
  • 4PIRAM T. Gamma-ray bursts and the fireball model[J]. PhR, 1999, 314: 5754567. 被引量:1
  • 5HUANG Y F, DAI Z G, LU T. A generic dynamical model of gamma- ray burst remnants [ J] , MNRAS, 1999, 309:513-516. 被引量:1
  • 6PANAITESCU A, KUMAR P. Jet energy and other parameters for the afterglows of GRB 980703, GRB 990123, GRB 990510, and GRB 991216 determined from modeling of multifrequeney data[ J]. Ap J, 2001, 554:667-677. 被引量:1
  • 7CHENG K S, HUANG Y F, LU T. Gamma-ray bursts: afterglows from cylindrical jets[J]. MNRAS, 2001, 325: 599-606. 被引量:1
  • 8黄永锋,谭长宜,戴子高,陆埮.伽玛射线暴:各向同性火球还是柱形喷流?[J].天文学报,2002,43(2):169-177. 被引量:4
  • 9CHEVALIER R A, LI Z Y. Wind interaction models for gamma-ray burst afterglows: the case for two types of progenitors [ J ]. Ap J, 2000, 536: 195-212. 被引量:1
  • 10DAI Z G, HUANG Y F, LU T. Gamma-ray burst afterglows from realistic fireballs[J]. Ap J, 1999, 520: 634-640. 被引量:1

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