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Abstract |
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. |
