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GR: Fachverband Gravitation und Relativitätstheorie

GR 6: Relativistic astrophysics II

GR 6.3: Vortrag

Mittwoch, 21. März 2018, 14:40–15:00, NW-Bau - HS3

The exact propagation delay in pulsar timing — Arnab Dhani^1,2,3 and •Eva Hackmann³ — ¹Pennsylvania State University — ²Indian Institute of Technology Roorkee — ³ZARM, Universität Bremen

Pulsar timing offers the possibility to test the theory of gravity in the strong field regime. Particularly promising laboratories for such tests are pulsar–black hole binaries. In such a system it is therefore of paramount importance to accurately model the effects of General Relativity. Here we present an exact analytical calculation for the relativistic propagation delay of the signal of a pulsar orbiting a supermassive black hole. We use this result to test the accuracy of the usually employed post–Newtonian approximation methods.