76 citations · 132 across the 8 of their papers we have counts for
8 papers
Galactic black hole immersed in a dark halo with its surrounding thin accretion disk
Mohaddese Heydari-Fard, Malihe Heydari-Fard, Nematollah Riazi
By considering the analytic, static and spherically symmetric solution for the Schwarzschild black holes immersed in dark matter fluid with non-zero tangential pressure \cite{Jusuf…
Thin accretion disk images of rotating hairy Horndeski black holes
Mohaddese Heydari-Fard, Malihe Heydari-Fard, Nematollah Riazi
By considering the steady-state Novikov-Thorne model, we study thin accretion disk processes for rotating hairy black holes in the framework of the Horndeski gravity. We obtain the…
The Affective Factors on the Uncertainty in the Collisions of the Soliton Solutions of the Double Field sine-Gordon System
Mohammad Mohammadi, Nematollah Riazi
Inspired by the well known sine-Gordon equation, we present a symmetric coupled system of two real scalar fields in dimensions. There are three different topological soliton…
Phantom Origin for f(R) Inflation
Sh. Assyyaee, N. Riazi
We argue that for model of the early universe, the de Sitter point appears as partial attractor for phantom paths. The phantom trajectories then bend their way to the…
Massive Axions, Domain Walls and Inflation
Sh. Assyyaee, N. Riazi
We have analyzed a model which is broken explicitly to a model. The model results in generating two stable domain walls, in contrast with the more common ve…
Lovelock gravity from entropic force
A. Sheykhi, H. Moradpour, N. Riazi
In this paper, we first generalize the formulation of entropic gravity to (n+1)-dimensional spacetime. Then, we propose an entropic origin for Gauss-Bonnet gravity and more general…