RT Journal Article
T1 Instabilities of black holes in Einstein-scalar–Gauss–Bonnet theories
A1 Blázquez Salcedo, José Luis
A1 Kleihaus, Burkhard
A1 Kunz, Jutta
AB Black holes represent an ideal laboratory to test Einstein's theory of general relativity and alternative theories of gravity. Among the latter, Einstein-scalar-Gauss-Bonnet Theories have received much attention in recent years. Depending on the coupling function of the scalar field, the resulting black holes may then differ significantly from their counterparts in general relativity. Focusing on the lowest modes, linear mode stability of the black holes is addressed for several types of coupling functions. When in addition to the coupling to the Gauss-Bonnet term a cosmologically motivated further term with coupling to the curvature scalar is included, a new set of instabilities arises: quadrupole and hexadecupole instabilities of spherically symmetric scalarized black holes, that are stable under radial perturbations.
PB Springer
SN 0001-7701
YR 2024
FD 2024-08-31
LK https://hdl.handle.net/20.500.14352/134766
UL https://hdl.handle.net/20.500.14352/134766
LA eng
NO Blázquez-Salcedo, J.L., Kleihaus, B. & Kunz, J. Instabilities of black holes in Einstein-scalar–Gauss–Bonnet theories. Gen Relativ Gravit 56, 99 (2024). https://doi.org/10.1007/s10714-024-03278-w
NO © The Author(s) 2024
NO German Research Foundation
NO Fundação para a Ciência e a Tecnologia (Portugal)
NO European Commission
NO Ministerio de Ciencia, Innovación y Universidades (España)
NO Agencia Estatal de Investigación (España)
DS Docta Complutense
RD 8 jun 2026