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Talk1 h 9 min

Learning about gravity from imaging supermassive black holes

Luciano Rezzolla · CERN

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About

I will discuss how the first images of the supermassive black holes M87* and Sgr A* were 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 the comparison between the theoretical images and the observations on a broad range of frequencies has allowed us to deduce the presence of supermassive black holes and to extract information about the accretion process. In addition, I will describe the lessons we have learned from these imaging process about strong-field gravity and alternatives to black holes. .

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The talk

  1. Learning about gravity from imaging supermassive black holes 2025-09-24 · 1 h 9 min · CERN's player

Credits and licence

Institution
CERN
Department
Theory Colloquia
Speaker
Luciano Rezzolla
Year
2025
Language
English
Source
CERN
Licence
CERN, as CERN states it. CERN's terms
Attribution
© CERN. CERN provides its audiovisual media free of charge for educational and informational use, credited to CERN; this lecture is shown in CERN's own player.
Who can watch
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