Unraveling the Mysteries of Tidal Disruption Events

Seminar
QUEST Center event
No
Speaker
Assaf Horesh (HUJI)
Date
15/01/2024 - 12:00 - 10:30Add to Calendar 2024-01-15 10:30:00 2024-01-15 12:00:00 Unraveling the Mysteries of Tidal Disruption Events Tidal Disruption Events (TDEs) are cosmic occurrences where a star is torn apart by the immense gravitational forces of a supermassive black hole. This field is one of the key focus of contemporary astrophysical time-domain research, which offers critical insights into the nature of black holes, the dynamics of stellar destruction, and accretion physics. In my talk I will review our current understating of TDEs, and will address some challenges and pressing questions in the field. I will present new recent discoveries such as the (highly debated) association of neutrinos with TDEs, and my own discovery of delayed radio flares. The latter phenomenon shows that radio emission from TDEs can turn on sometimes months, and even years after stellar disruption. While we identified some possible explanations, the nature of these flares still remains mostly unknown. I will conclude by discussing future avenues in TDE research. Physics (202) room 301 Department of Physics physics.dept@mail.biu.ac.il Asia/Jerusalem public
Place
Physics (202) room 301
Abstract

Tidal Disruption Events (TDEs) are cosmic occurrences where a star is torn apart by the immense gravitational forces of a supermassive black hole. This field is one of the key focus of contemporary astrophysical time-domain research, which offers critical insights into the nature of black holes, the dynamics of stellar destruction, and accretion physics. In my talk I will review our current understating of TDEs, and will address some challenges and pressing questions in the field. I will present new recent discoveries such as the (highly debated) association of neutrinos with TDEs, and my own discovery of delayed radio flares. The latter phenomenon shows that radio emission from TDEs can turn on sometimes months, and even years after stellar disruption. While we identified some possible explanations, the nature of these flares still remains mostly unknown. I will conclude by discussing future avenues in TDE research.

Last Updated Date : 07/01/2024