192 citations · 240 across the 6 of their papers we have counts for
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Chameleon Gravity with an Environmental Frequency Dependent on Density
Raziyeh Zaregonbadi, Nasim Saba
Scalar field theories of modified gravity are strongly constrained by the absence of detectable long range fifth forces in laboratory and Solar System environments. The chameleon m…
Chameleon Gravity as an Alternative to Dark Matter
Raziyeh Zaregonbadi, Nasim Saba, Mehrdad Farhoudi
By studying the chameleon gravity on galaxy scales, we investigate the effects of the chameleon dark matter. To perform this task, we consider the dynamics of the chameleon scalar…
Cosmological Solutions of Chameleon Scalar Field Model
Raziyeh Zaregonbadi, Nasim Saba, Mehrdad Farhoudi
We investigate cosmological solutions of the chameleon model with a non-minimal coupling between the matter and the scalar field through a conformal factor with gravitational stren…
Cosmic Acceleration and Geodesic Deviation in Chameleon Scalar Field Model
Raziyeh Zaregonbadi, Nasim Saba, Mehrdad Farhoudi
While considering the chameleon scalar field model with the spatially flat FLRW background, we investigate the late-time acceleration phase of the universe, wherein we apply the ty…
Cosmic acceleration via space-time-matter theory
Raziyeh Zaregonbadi
We consider the space-time-matter theory (STM) in a five-dimensional vacuum space-time with a generalized FLRW metric to investigate the late-time acceleration of the universe. For…
Dark Matter From f(R,T) Gravity
Raziyeh Zaregonbadi, Mehrdad Farhoudi, Nematollah Riazi
We consider f(R,T) modified theory of gravity, in which the gravitational Lagrangian is given by an arbitrary function of the Ricci scalar and the trace of the energy-momentum tens…
Cosmic Acceleration From Matter-Curvature Coupling
Raziyeh Zaregonbadi, Mehrdad Farhoudi
We consider f(R,T) modified theory of gravity in which, in general, the gravitational Lagrangian is given by an arbitrary function of the Ricci scalar and the trace of the energy-m…