Würzburg 2018 – wissenschaftliches Programm

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GR: Fachverband Gravitation und Relativitätstheorie

GR 4: Gravitational waves II

GR 4.3: Vortrag

Dienstag, 20. März 2018, 17:10–17:30, Phys-SR-SE1

Signatures of alternative models of gravity in the gravitational waves: the quasi-normal modes of compact objects — •Jose Luis Blazquez-Salcedo — University of Oldenburg, Oldenburg, Germany

We study the ring-down phase of gravitational waves emitted from compact objects, such as neutron stars and black holes. We consider alternative models of gravity, e.g., Einstein-Gauss-Bonnet-dilaton theory, Scalar-Tensor theory, etc. The properties of the ring-down of these objects are studied using the quasi-normal mode formalism. This allow us to calculate how the theory characterises the properties of the ring-down in each case. We compare with the standard General Relativity results, which give us possible signatures of the alternative models of gravity in the gravitational wave emission.