Bremen 2017 – scientific programme
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GR: Fachverband Gravitation und Relativitätstheorie
GR 11: Gravitationswellen
GR 11.3: Talk
Wednesday, March 15, 2017, 18:10–18:30, SFG 0140
Quasinormal modes of perturbed black holes in Einstein-dilaton-Gauss-Bonnet gravity — Jose Luis Blazquez-Salcedo1, Caio F. B. Macedo2, Vitor Cardoso3, Valeria Ferrari4, Leonardo Gualtieri5, •Fech Scen Khoo6, Jutta Kunz7, and Paolo Pani8 — 1University of Oldenburg, Oldenburg, Germany — 2Universidade de Lisboa, Lisboa, Portugal — 3Universidade de Lisboa, Lisboa, Portugal — 4Sapienza Universita di Roma, Sezione INFN Roma1, Roma, Italy — 5Sapienza Universita di Roma, Sezione INFN Roma1, Roma, Italy — 6Jacobs University, Bremen, Germany — 7University of Oldenburg, Oldenburg, Germany — 8Sapienza Universita di Roma, Sezione INFN Roma1, Roma, Italy
We will discuss the gravitational waves emitted by distorted black holes in a gravity theory that extends general relativity to include the coupling of a scalar field (dilaton) and the topological Gauss-Bonnet invariant which is second order in curvature. We will be focusing in this talk on the quasinormal modes which are most relevant for the ringdown phase of the gravitational waves, where we explore the linear mode stability of the black holes against axial and polar perturbations.