4 papers
Supermassive black hole scalarization and effective field theory
Farid Thaalba, Pedro G. S. Fernandes, Thomas P. Sotiriou
A model in which black hole scalarization occurs for supermassive black holes, while their less massive counterparts remain unscalarized, has been recently proposed. We explore whe…
Non-minimal light-curvature couplings and black-hole imaging
Raúl Carballo-Rubio, Héloïse Delaporte, Astrid Eichhorn +1
Non-minimal couplings between the electromagnetic field strength and the spacetime curvature are part of the effective field theory of gravity and matter. They alter the local prop…
Rotating scalarized black holes: the role of the coupling
Kalin V. Staykov, Daniela D. Doneva, Pedro G. S. Fernandes +1
We perform an in-depth analysis of rotating scalarized black holes in scalar-Gauss-Bonnet gravity, where scalarization is induced by the spacetime curvature. Our results show that…
Purely metric Horndeski theories and spontaneous curvaturization of black holes
Astrid Eichhorn, Pedro G. S. Fernandes
We explore purely metric theories of gravity with second-order equations of motion and a single additional, purely gravitational, propagating, scalar degree of freedom. We identify…