Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Statut Confirmé
Série APC-COLLOQUIUM
Domaines astro-ph
Date Vendredi 15 Mars 2019
Heure 11:00
Institut APC
Salle Amphitheatre Pierre Gilles de Gennes
Nom de l'orateur Vincent
Prenom de l'orateur Frederic
Addresse email de l'orateur
Institution de l'orateur Obs de Paris
Titre What can we learn from the picture of a black hole?
Résumé The Event Horizon Telescope is a network of millimeter antennas located all around the world. Very-long-baseline interferometry with this array leads to a resolution of the order of 20 µas at the center of our Galaxy, which harbors a supermassive black hole, Sgr A*. This resolution allows to resolve the surroundings of Sgr A* at event-horizon scale, allowing to probe strong-field general relativity in its most extreme regime. In this talk, I will discuss what physics can be done with such an instrument, how it should allow to improve our understanding of the extreme phenomena close to Sgr A*, and whether gravitation itself might be tested.
Numéro de preprint arXiv
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