Scalarization is a mechanism that endows strongly self-gravitating bodies, such as neutron
stars and black holes, with a scalar-field configuration. It resembles a phase transition in that …

In this paper, we present an overview of recent developments in the numerical solution of
Horndeski gravity theories, which are the class of all scalar–tensor theories of gravity that …

Exploring the nature of gravity in the strong curvature regime is seeing a surge of interest
lately. This is expected to intensify, as it is driven by current and future observations of …

As the only gravity theory with quadratic curvature terms and second-order field equations,
Einstein-dilaton-Gauss-Bonnet gravity is a natural test bed to probe the high-curvature …

During the final stages of black hole evaporation, ultraviolet deviations from general relativity
eventually become dramatic, potentially affecting the end state. We explore this problem by …

Many classes of extended scalar-tensor theories predict that dynamical instabilities can take
place at high energies, leading to the formation of scalarized neutron stars. Depending on …

In the present paper we take a step toward the generalization of the post-Newtonian
formalism to tensor-multiscalar theories. These are theories where we have more than one …

Dark matter, an important portion of compact objects, can influence different phenomena in
neutron stars. The spontaneous scalarization in the scalar-tensor gravity has been proposed …

Beyond black holes and neutron stars, new hypothetical compact objects have been
proposed as potential astrophysical entities. In general, their properties have not yet been …

The aim of the current paper is to apply the method of Bambi (Bambi, 2015) to a source
which contains two or more simultaneous triads of variability components. The joint chi …