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GR: Fachverband Gravitation und Relativitätstheorie

GR 5: Classical General Relativity I

GR 5.4: Talk

Tuesday, March 1, 2016, 14:55–15:10, VMP6 HS A

Circular motion in NUT spacetime — •Pavel Jefremov and Volker Perlick — ZARM, Bremen, Deutschland

For the geodesic motion we find the surface where circular motion takes place as well as characteristic radii of the spacetime (last stable and marginally bound orbits). For the fluid motion we investigate the model of geometrically thick tori ("Polish Doughnuts") and discuss how their structure is influenced by the parameters of the metric. For ultrarelativistic motion in a general anxially symmetric spacetime we derive formula for the potential lines of centrifugal and Coriolis forces and discuss the results in the NUT spacetime.