Bonn 2020 – scientific programme

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GR: Fachverband Gravitation und Relativitätstheorie

GR 8: Black Holes 1

GR 8.3: Talk

Wednesday, April 1, 2020, 12:00–12:15, H-HS IX

Gravitational lensing in Newman-Unti-Tamburino spacetime — •Mourad Halla and Volker Perlick — ZARM Universität Bremen, 28359 Bremen

Gibbons and Werner have shown that in the Schwarzschild and in the Kerr spacetime the deflection angle of light in the equatorial plane is related to the Gauss curvature by the Gauss-Bonnet theorem. Here we generalise this result to the NUT-metric, where the motion of light is not in a plane but in a cone.