171 citations · 173 across the 2 of their papers we have counts for
13 papers
Dynamical Chameleon Neutron Stars: stability, radial oscillations and scalar radiation in spherical symmetry
Alexandru Dima, Miguel Bezares, Enrico Barausse
Scalar-tensor theories whose phenomenology differs significantly from general relativity on large (e.g. cosmological) scales do not typically pass local experimental tests (e.g. in…
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…
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…
Gravitational wave signatures of dark matter cores in binary neutron star mergers by using numerical simulations
Miguel Bezares, Daniele Viganò, Carlos Palenzuela
Recent detections by the gravitational wave facilities LIGO/Virgo have opened a window to study the internal structure of neutron stars through the gravitational waves emitted duri…
Kaluza-Klein Cosmology: the bulk metric
Carles Bona, Miguel Bezares
The Cosmological Principle is applied to a five-dimensional vacuum manifold. The general (non-trivial) solution is explicitly given. The result is a unique metric, parametrized wit…