报告题目: The Probability Photosphere Model for the Prompt Emission of Gamma-ray Burst

报 告 人 ：蒙延智，南京大学

报告时间：2020年9月22日（星期二）14：30（北京时间）

报告地点：在线报告 腾讯会议ID：676 592 702

报告摘要:

　　Gamma-ray burst (GRB) is one of the most violent events in the deep universe. It has two emission stages. The earlier one is the prompt emission in γ-ray band. After the prompt emission, we can see its multi-wavelength afterglows. After decades of investigation, the origin of the prompt emission remains unclear, especially the radiation mechanism. The synchrotron emission or the photospheric emission origin has been long-debated.

　　 I will give a detailed review on the researches of GRB prompt emission, both the observations and models. Then, I will talk about my theoretical studies within the framework of the probability photosphere model, considering the more natural and reasonable physical conditions of jet structure, jet composition and viewing angle. Also, which observational and statistic features can be reproduced by the modified model will be shown.

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　　　　　吉林大学理论物理中心