One of the most remarkable possibilities of General Relativity concerns gravitational collapse to black holes, leaving behind a geometry with light rings, ergoregions and horizons.
These peculiarities are responsible for uniqueness properties and energy extraction mechanisms that turn black holes into ideal laboratories of strong gravity, of particle physics (yes!) and of possible quantum-gravity effects.
I will review the status of black holes, in light of gravitational-wave and electromagnetic observations in the last few years.
Please join via Zoom at
https://uio.zoom.us/j/66502717448?pwd=M3NaZlRHNFlObjdKeDBGSzNrNnp2Zz09
Meeting ID: 665 0271 7448
Passcode: 588922
Attendees will be muted during the colloquium, but will have the opportunity to ask questions at the end by clicking on the "raise hand” button (or send a request to me via chat).