物理大讲堂--青年学者论坛 (87)

时间:2020-11-18    点击:

报告题目:  High-energy radiation from the wind of newborn magnetars and its possible applications.

报 告 人:肖笛(南京大学)

报告时间:2020年11月20日(星期五)14:30(北京时间)

报告地点:在线报告 腾讯会议ID:336 894 678

报告摘要: Magnetars are highly magnetized neutron stars with field strength greater than 10^{13} Gauss. In gamma-ray burst (GRB) studies, newborn millisecond magnetars are widely believed to be one of the most promising central engines, due to their huge rotational energy. Generally, a newborn magnetar will eject a wind, which is initially cold and Poynting-flux dominated. As the wind propagates outside, the magnetic energy will gradually dissipate and be converted into thermal energy, kinetic energy of the wind and high-energy radiation. The X-ray to gamma-ray emission in this process could be responsible for many kinds of phenomena, such as GRB prompt emission, X-ray plateau and other transient events that requires magnetar energy injection. In this talk, I will briefly introduce this scenario and discuss its implications.


主办单位:吉林大学物理学院

     吉林大学理论物理中心



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