The understanding of stellar structure represents the crossroads of our theories of the
nuclear force and the gravitational interaction under the most extreme conditions observably …

Neutron stars and quark stars are ideal laboratories to study fundamental physics at supra
nuclear densities and strong gravitational fields. Astrophysical observables, however …

The dawn of the twenty-first century came with very positive prospects for gravity, cosmology,
and astrophysics. Technological progress made it possible for cosmology to enter to its …

One century after its formulation, Einstein's general relativity (GR) has made remarkable
predictions and turned out to be compatible with all experimental tests. Most of these tests …

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 …

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 …

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 …

In this paper, we study static and spherically symmetric black hole (BH) solutions in the
scalar-tensor theories with the coupling of the scalar field to the Gauss-Bonnet (GB) term, ξ …

Rotating relativistic stars have been studied extensively in recent years, both theoretically
and observationally, because of the information they might yield about the equation of state …

Some models (such as the Skyrme model, a low-energy effective field theory for quantum
chromodynamics) suggest that the high-density matter prevailing in neutron star (NS) …