RT Journal Article
T1 Quasinormal modes of rapidly rotating Einstein-Gauss-Bonnet-dilaton black holes
A1 Blázquez Salcedo, José Luis
A1 Khoo, Fech Scen
A1 Kleihaus, Burkhard
A1 Kunz, Jutta
AB Quasinormal modes of rapidly rotating black holes are crucial in understanding the ringdown phase after a merger. While for Kerr black holes these modes have been known for a long time, their calculation has remained a challenge in alternative theories of gravity. We obtain the spectrum of quasinormal modes of rapidly rotating black holes in Einstein-Gauss-Bonnet-dilaton theory without resorting to perturbation theory in the coupling constant. Our approach is based on a spectral decomposition of the linear perturbations of the metric and the scalar field. The quasinormal modes agree excellently with the perturbatively known slow rotation and weak coupling limits. For large coupling, though, the spectrum changes significantly.
PB American Physical Society
SN 2470-0010
YR 2025
FD 2025-01-21
LK https://hdl.handle.net/20.500.14352/136472
UL https://hdl.handle.net/20.500.14352/136472
LA eng
NO J. L. Blázquez-Salcedo, F. S. Khoo, B. Kleihaus, and J. Kunz, Quasinormal modes of rapidly rotating Einstein-Gauss-Bonnet-dilaton black holes, Phys. Rev. D 111, L021505 (2025).
NO © 2025 American Physical SocietyPrograma Atracción de Talento Investigador "César Nombela" 2024-T1/COM-31385
NO German Research Foundation
NO Fundação para a Ciência e a Tecnologia (Portugal)
NO European Commission
NO Ministerio de Ciencia e Innovación (España)
NO Agencia Estatal de Investigación (España)
NO Comunidad de Madrid
DS Docta Complutense
RD 22 may 2026