NEW【2024年11月5日】“Production and absorption of gamma rays with stars in neighbourhood of supermassive black holes.”/ Julian Sitarek (Universidad de Lodz, Poland)

ICRRセミナー

番号R6-8 /  IPMU/ILANCE/ICRR joint seminar
日時2024年11月5日(火) 15:00-
場所 ICRR 6F large seminar room (601)
Zoom: https://u-tokyo-ac-jp.zoom.us/j/89107721938?pwd=crFZhI3h93DTCavaavhBvuBzhB1feC.1
講演者 Julian Sitarek (Universidad de Lodz, Poland)
タイトル“Production and absorption of gamma rays with stars in neighbourhood of supermassive black holes.”
概要Supermassive black holes (SMBH) tend to be surrounded by massive star clusters. Under certain conditions those stars might affect the gamma-ray emission from SMBH-jet system. In this seminar I will present a few theoretical scenarios in which the encounter with a star leads either to production of a gamma-ray flare, or to an absorption feature in the gamma-ray spectrum of the source.