First image of the black hole shadow in the Galactic Center

There is a supermassive compact object, named Sagittarius A*, in the center of the Milky Way. We have recently obtained the highest resolution images of this object with the Event Horizon Telescope, a global network of radio telescopes operating at a high radio frequency of 230 GHz. Our images resolve the source on the scale of a black hole event horizon. In this talk I will discuss the challenges related to obtaining these images, their theoretical interpretation within the black hole accretion theory framework, as well as the question of how much confidence we have in Sagittarius A* being a Kerr black hole, following these new results.

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Room D or Zoom (Link)