Fredagskollokvium: Extreme Spacetimes and their Numerical Approximation

David Hilditch, Center for astrophysics and gravitation, University of Lisbon.

Tid og sted: 25. sep. 2020 11:00–12:00, Online
David Hilditch, University of Lisbon.

Close to the threshold of black hole formation a variety of fascinating critical behavior, with direct relevance to cosmic censorship, are manifest.

Since there is no hope to obtain general solutions to the field equations of general relativity in this highly dynamical regime, we must turn to numerical methods.

In this talk I will therefore give an introduction to the fundamentals of numerical relativity, focusing afterwards on open problems, and in particular the ongoing challenges in treating the threshold of collapse. 

 

Bildet kan inneholde: mønster, design, skrift, arkitektur.
A snapshot of the curvature (Kretschmann scalar) taken from a gravitational wave spacetime near the threshold of collapse. In this regime finer and finer features are generated. These features may result in the creation of a naked singularity. Credits: David Hilditch.

Arrangør

Institutt for teoretisk astrofysikk

Please join via Zoom at
https://uio.zoom.us/j/68445878934?pwd=WU9sMEsyeml3RHo4QkllRS9LWlMxdz09

Meeting ID: 684 4587 8934
Passcode: 002925
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).

Emneord: numerical methods, Numerical Modeling, institute seminar
Publisert 12. feb. 2020 15:21 - Sist endret 21. sep. 2020 14:18
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