| Number | R6-8 / IPMU/ILANCE/ICRR joint seminar |
| Date&Time | November 5, 2024, Tue, 15:00- |
| Place | ICRR 6F large seminar room (601) Zoom: https://u-tokyo-ac-jp.zoom.us/j/89107721938?pwd=crFZhI3h93DTCavaavhBvuBzhB1feC.1 |
| Speaker | Julian Sitarek (Universidad de Lodz, Poland) |
| Title | “Production and absorption of gamma rays with stars in neighbourhood of supermassive black holes.” |
| Abstract | 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. |
