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 …

The big rip, the little rip and the little sibling of the big rip are cosmological doomsdays
predicted by some phantom dark-energy models that could describe the future evolution of …

The spectrum of frequencies and characteristic times that compose the ringdown phase of
gravitational waves emitted by neutron stars carries information about the matter content (the …

We calculate the parametrized post-Newtonian parameters γ and β for scalar-tensor gravity
with a generic coupling function ω and scalar potential V in the Jordan conformal frame in …

Screened modified gravity (SMG) is a kind of scalar-tensor theory with screening
mechanisms, which can generate a screening effect to suppress the fifth force in high …

We compute the parametrized post-Newtonian parameter γ in the case of a static point
source for multiscalar-tensor gravity with completely general nonderivative couplings and …

We have found some new exact static spherically symmetric interior solutions of metric f (R)
gravitational theories describing the equilibrium configuration of a star. Then the solution is …

This paper is asserted to explore the self-gravitating spherically symmetric anisotropic fluids
in Chameleonic Brans–Dicke theory as dark energy matter. The dissipative and non …

The prime goal of this paper is to analyze the conditions for the stability of the isotropic
pressure condition with hydrostatic equilibrium constraint under the influence of …

Abstract When the Brans-Dicke theory is formulated in terms of the Jordan scalar field φ, the
amount of dark energy is related to the mass of this field. We investigate a solution which is …