Oscar Klein Lecture: Roy P. Kerr - Kerr Black Holes have no Singularities

Thursday 17 Dec 2020, 20:00 → 21:00 Europe/Stockholm

Speaker: Roy P. Kerr (Canterbury District. Prof., Christchurch New Zealand,
Lifschitz Prof. ICRANet, Pescara Italy)

Title: Kerr Black Holes have no Singularities

Abstract: All proofs that Black Holes have real physical singularities make assumptions about the nature of the matter inside and of certain light rays. It is shown that there are such lines inside Kerr that do not satisfy these assumptions. As an example to show that the behaviour inside the event horizon for real matter is very different from the idealisation of empty Kerr we consider two slowly rotating Black Holes collapsing to a single object. There have been many different approaches used to calculate the collapse of two BHs to a single one. We show that the best starting point is the Kerr-Schild form for a Black Hole. This explains the unexpected accuracy of a calculation by Jose Rodriguez for the first gravitational wave discovery, GW150914.

 

https://stockholmuniversity.zoom.us/j/63531400896