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考虑同步自吸收的γ暴能谱
The GRB fireball-model including the effect of synchrotron self-absorption
【摘要】 重点讨论有自吸收的γ射线暴余辉的能谱,考虑了在火球模型中同步加速辐射中的自吸收效应,用含有吸收系数的同步加速辐射谱公式计算了GRB970508余辉的辐射谱.解释了GRB970508射电和光学波段余辉的光变曲线的特征.
【Abstract】 This paper mainly takes into account the effect of synchrotron self-absorption.The radiation spectra and flux of gamma-ray burst afterglow are discussed. We present GRB970508 afterglow light curve in Radio and optical bands. Although the afterglows seem to be very complicated, our results can still present a rather satisfactory fit. In the end it suggests that synchrotron self-absorption and inner engine mechanism should be comprehensively studied in order to make theoretical calculation fit the observed light curve completely well.
【关键词】 γ射线暴;
火球模型;
同步自吸收;
余辉;
【Key words】 gamma-rays bursts; fireball model; synchrotron self-absorption; afterglow;
【Key words】 gamma-rays bursts; fireball model; synchrotron self-absorption; afterglow;
【基金】 国家自然科学基金资助项目(19778003).
- 【文献出处】 华中师范大学学报(自然科学版) ,Journal of Central China Normal University(Natural Sciences) , 编辑部邮箱 ,2005年01期
- 【分类号】P172
- 【被引频次】2
- 【下载频次】81