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GR: Fachverband Gravitation und Relativitätstheorie

GR 6: Relativistic Astrophysics

GR 6.1: Invited Talk

Wednesday, March 22, 2023, 11:00–11:45, ZEU/0260

Geodesic motion in relativistic astrophysics — •Eva Hackmann — ZARM, Universität Bremen

Astrophysical systems are usually composed of two major bodies. The throughout analysis of relativistic binary systems is therefore very important, but far from trivial due to the nonlinear nature of General Relativity. A limiting case, that can be handled analytically but is still informative for a wide range of systems, is the extreme mass ratio or one-body problem. In this presentation, we will first quickly review analytical solutions methods for this case, and then explore a range of applications in modern astrophysics, for example pulsar timing in extreme mass ratio systems.