华中师范大学学报(自然科学版)
華中師範大學學報(自然科學版)
화중사범대학학보(자연과학판)
JOURNAL OF CENTRAL CHINA NORMAL UNIVERSITY(NATURAL SCIENCES)
2005年
3期
315-319
,共5页
黄文涛%刘学文%许云%杨丕博%郑小平
黃文濤%劉學文%許雲%楊丕博%鄭小平
황문도%류학문%허운%양비박%정소평
Gamma射线%爆发%火球%同步自吸收
Gamma射線%爆髮%火毬%同步自吸收
Gamma사선%폭발%화구%동보자흡수
Gamma-rays: bursts%fireball%synchrotron self-absorption
考虑同步自吸收效应后,讨论了Gamma射线暴余辉的谱并展示了Gamma射线暴GRB9 70508余辉在光学波段的光变曲线.尽管光学余辉很复杂,所得到的结果仍然与观测结果符合的很好.因此不管是在火球+激波模型还是在喷流模型中,都应该全面地研究同步自吸收效应和内部能源机制,以使理论计算更好的拟合观测到的光变曲线.
攷慮同步自吸收效應後,討論瞭Gamma射線暴餘輝的譜併展示瞭Gamma射線暴GRB9 70508餘輝在光學波段的光變麯線.儘管光學餘輝很複雜,所得到的結果仍然與觀測結果符閤的很好.因此不管是在火毬+激波模型還是在噴流模型中,都應該全麵地研究同步自吸收效應和內部能源機製,以使理論計算更好的擬閤觀測到的光變麯線.
고필동보자흡수효응후,토론료Gamma사선폭여휘적보병전시료Gamma사선폭GRB9 70508여휘재광학파단적광변곡선.진관광학여휘흔복잡,소득도적결과잉연여관측결과부합적흔호.인차불관시재화구+격파모형환시재분류모형중,도응해전면지연구동보자흡수효응화내부능원궤제,이사이론계산경호적의합관측도적광변곡선.
Taking into account the effect of synchrotron self-absorption, the radiation spectra and flux of gamma-ray burst afterglow are discussed. And this paper presents GRB970508 afterglow light curve in optical R band. Although the optical afterglows seem much more complicated, its results can still present a rather satisfactory agreement with observation. In the end it suggest that synchrotron self- absorption and inner engine mechanism should be comprehensively studied either in fireball+shock model or in jet model in order to make theoretical calculation fit the observed light curve completely well.