36 citations · 78 across the 6 of their papers we have counts for
6 papers
Primary black-hole scalar charges and kinetic screening in -essence-Gauss-Bonnet gravity
Guillermo Lara, Georg Trenkler, Leonardo G. Trombetta
Black holes beyond General Relativity may carry non-standard charges that impact their phenomenology. We study how the scalar charge that is induced by the scalar-Gauss-Bonnet coup…
Fixing the dynamical evolution of self-interacting vector fields
Marcelo E. Rubio, Guillermo Lara, Miguel Bezares +2
Numerical simulations of the Cauchy problem for self-interacting massive vector fields often face instabilities and apparent pathologies. We explicitly demonstrate that these issue…
Extending black-hole remnant surrogate models to extreme mass ratios
Matteo Boschini, Davide Gerosa, Vijay Varma +19
Numerical-relativity surrogate models for both black-hole merger waveforms and remnants have emerged as important tools in gravitational-wave astronomy. While producing very accura…
Robustness of kinetic screening against matter coupling
Guillermo Lara, Miguel Bezares, Marco Crisostomi +1
We investigate neutron star solutions in scalar-tensor theories of gravity with first-order derivative self-interactions in the action and in the matter coupling. We assess the rob…
The well-posedness of the Cauchy problem for self-interacting vector fields
Enrico Barausse, Miguel Bezares, Marco Crisostomi +1
We point out that the initial-value (Cauchy) problem for self-interacting vector fields presents the same well-posedness issues as for first-order derivative self-interacting scala…
UV completions, fixing the equations and nonlinearities in -essence
Guillermo Lara, Miguel Bezares, Enrico Barausse
Scalar-tensor theories with first-derivative self interactions, known as -essence, may provide interesting phenomenology on cosmological scales. On smaller scales, however, init…