2026-06-07T19:16:03Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/1347662026-04-14T23:48:53Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense
author
Blázquez Salcedo, José Luis
author
Kleihaus, Burkhard
author
Kunz, Jutta
2026-04-14T18:06:47Z
2026-04-14T18:06:47Z
2024-08-31
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
0001-7701
10.1007/S10714-024-03278-W
https://hdl.handle.net/20.500.14352/134766
1572-9532
https//doi.org/ 10.1007/S10714-024-03278-W
https://link.springer.com/article/10.1007/s10714-024-03278-W
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.
eng
Attribution 4.0 International
Instabilities of black holes in Einstein-scalar–Gauss–Bonnet theories
journal article
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