München 2019 – scientific programme

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GR: Fachverband Gravitation und Relativitätstheorie

GR 14: Poster Session (posters are permanently on display)

GR 14.2: Poster

Thursday, March 21, 2019, 16:30–18:30, HS 6

Flying around and through a rotating black hole -- Visualizations — •Thomas Reiber — Universität Hildesheim, Universitätsplatz 1, 31141 Hildeheim

Kerr spacetime describes the axisymmetric gravitational field of a rotating black hole. The maximal analytic extension of slow Kerr spacetime contains an infinity of asymptotically flat "exterior" regions connected by a strongly curved 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. What would one observe on such a journey? Tracing the light rays back to a background scene in the exterior part, we calculate videos of the observers view.