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 …

The idea of stable, localized bundles of energy has strong appeal as a model for particles. In
the 1950s, John Wheeler envisioned such bundles as smooth configurations of …

This review is focused on tests of Einstein's theory of general relativity with gravitational
waves that are detectable by ground-based interferometers and pulsar-timing experiments …

Scalar-tensor theories of gravity are natural phenomenological alternatives to General
Relativity, where the gravitational interaction is mediated by a scalar degree of freedom …

Scalar fields have played an important role in the development of the fundamental theories
of physics as well as in other branches of physics such as gravitation and cosmology. For a …

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 …

We present a framework to study generic neutron-star binaries in scalar-tensor theories of
gravity. Our formalism achieves this goal by suitably interfacing a post-Newtonian orbital …

Scalar-tensor theories of gravity are extensions of general relativity (GR) including an extra,
nonminimally coupled scalar degree of freedom. A wide class of these theories, albeit …

In the presence of a complex scalar field scalar–tensor theory allows for scalarized rotating
hairy black holes. We exhibit the domain of existence for these scalarized black holes, which …

We study phenomenological features and stability of boson stars in massless and massive
scalar-tensor theory of gravity with Damour-Esposito-Farèse coupling. This coupling …