143 citations · 234 across the 4 of their papers we have counts for
12 papers
Kinetic screening in nonlinear stellar oscillations and gravitational collapse
Miguel Bezares, Lotte ter Haar, Marco Crisostomi +2
We consider k-essence, a scalar-tensor theory with first-order derivative self-interactions that can screen local scales from scalar fifth forces, while allowing for sizeable devia…
Degenerate Horava gravity
Enrico Barausse, Marco Crisostomi, Stefano Liberati +1
Horava gravity breaks Lorentz symmetry by introducing a dynamical timelike scalar field (the khronon), which can be used as a preferred time coordinate (thus selecting a preferred…
Dynamics of Screening in Modified Gravity
Lotte ter Haar, Miguel Bezares, Marco Crisostomi +2
Gravitational theories differing from General Relativity may explain the accelerated expansion of the Universe without a cosmological constant. However, to pass local gravitational…
K-dynamics: well-posed 1+1 evolutions in K-essence
Miguel Bezares, Marco Crisostomi, Carlos Palenzuela +1
We study the vacuum Cauchy problem for K-essence, i.e. cosmologically relevant scalar-tensor theories that involve first-order derivative self-interactions, and which pass all exis…
Consistency relations for large-scale structure in modified gravity and the matter bispectrum
Marco Crisostomi, Matthew Lewandowski, Filippo Vernizzi
We study perturbation theory for large-scale structure in the most general scalar-tensor theories propagating a single scalar degree of freedom, which include Horndeski theories an…
Perturbations of a rotating black hole in DHOST theories
Christos Charmousis, Marco Crisostomi, David Langlois +1
We study linear perturbations of a rotating black hole solution that has been recently discovered in degenerate higher-order scalar-tensor (DHOST) theories. We find a parametrizati…