[astroseminar at Sapienza] today at 16:00: Luciano Rezzolla (SEMINARIO GENERALE)

[Elia Battistelli]

GENERAL COLLOQUIUM OF THE PHYSICS DEPARTMENT

Title: The first image of a black hole
Speaker:   Luciano Rezzolla
Institution: Institute for Theoretical Physics, Goethe University 
Frankfurt
Date: Tuesday, 21 May 2019
Time: 4:00pm
Location: Aula Conversi, Marconi Building, Dept. of Physics, Sapienza 
University

Abstract:
I will briefly discuss how the first image of a black hole was obtained 
by the EHT collaboration. In particular, I will describe the theoretical 
aspects that have allowed us to model the dynamics of the plasma 
accreting onto the black hole and how such dynamics was used to generate 
synthetic black-hole images. I will also illustrate how the comparison 
between the theoretical images and the observations has allowed us to 
deduce the presence of a black hole in M87 and to extract information 
about its properties. Finally, I will describe the lessons we have 
learned about strong-field gravity and alternatives to black holes.

web: https://agenda.infn.it/event/19120/