6 papers
Leading effective field theory corrections to the Kerr metric at all spins
Pedro G. S. Fernandes
The leading corrections to General Relativity can be parametrized by higher-derivative interactions in a low-energy effective field theory, in a way that is general and agnostic to…
Dark matter and modified gravity: Einstein clusters from a non-minimally coupled vector field
Pedro G. S. Fernandes, Vitor Cardoso
We show that a vector field non-minimally coupled to gravity reproduces exactly the dynamics of an Einstein cluster -- a large ensemble of non-interacting particles moving on circu…
Ringing of rapidly rotating black holes in effective field theory
Tom van der Steen, Simon Maenaut, Stef J. B. Husken +5
Within the effective field theory approach to gravity, deviations from general relativity can be systematically described by higher-curvature operators. However, computing the resu…
Environmentally-induced chaos: Extreme-mass-ratio systems of rotating black holes in astrophysical environments
Kyriakos Destounis, Pedro G. S. Fernandes
Extreme-mass-ratio inspirals, in which a stellar-mass object orbits a supermassive black hole, are prime sources of millihertz gravitational waves for upcoming space-based detector…
Exact analytic rotating black-hole solutions with primary hair
Pedro G. S. Fernandes
Exact, analytic, asymptotically flat rotating black-hole solutions are exceedingly rare, with only a handful of examples known. Using a Kerr-Schild ansatz, we derive a multitude of…
Spinning black holes in astrophysical environments
Pedro G. S. Fernandes, Vitor Cardoso
We present stationary and axially-symmetric black hole solutions to the Einstein field equations sourced by an anisotropic fluid, describing rotating black holes embedded in astrop…