Heidelberg 2022 – wissenschaftliches Programm

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GR: Fachverband Gravitation und Relativitätstheorie

GR 1: Black Holes

GR 1.3: Vortrag

Montag, 21. März 2022, 09:40–10:00, GR-H2

A global view on Kerr spacetime -- First person visualization of general relativity — •Thomas Reiber — Universität Hildesheim, Germany

The maximal analytic extension of slow Kerr spacetime contains an infinity of asymptotically flat "exterior" regions connected by a strongly curved "interior" region. An observer may stay in one of the exterior regions or -- crossing event horizons -- pass through the strongly curved region to reach one of the other asymptotically flat regions. We calculate videos of what an observer would see on different journeys through Kerr spacetime by using general relativistic ray tracing. For that purpose we use a covering of Kerr spacetime by an atlas consisting of Kerr-Schild and Kruskal-like coordinate patches.