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SUMMARY:Gr.IV seminar: Luciano Rezzolla - "Learning about gravity from ima
 ging supermassive black holes"
DTSTART:20260211T140000Z
DTEND:20260211T150000Z
DTSTAMP:20260506T120200Z
UID:indico-event-50166@agenda.infn.it
DESCRIPTION:I will discuss how the first images of the supermassive black 
 holes M87* and Sgr A* were obtained by the EHT collaboration. In particula
 r\, I will describe the theoretical aspects that have allowed us to model 
 the dynamics of the plasma accreting onto the black hole and how the compa
 rison between the theoretical images and the observations on a broad range
  of frequencies has allowed us to deduce the presence of supermassive blac
 k holes and to extract information about the accretion process. In additio
 n\, I will describe the lessons we have learned from these imaging process
  about strong-field gravity and alternatives to black holes. Finally\, In 
 particular\, I will show how it is possible to construct interesting novel
  solutions combining different spacetimes and address the issue of the dyn
 amical formation of a gravastar.\n\nhttps://agenda.infn.it/event/50166/
LOCATION:GEO-6 (DIP.TO DI GEOLOGIA)
URL:https://agenda.infn.it/event/50166/
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