309 citations · 845 across the 18 of their papers we have counts for
3 papers · 1 filter
Mimetic Black Holes
Mohammad Ali Gorji, Alireza Allahyari, Mohsen Khodadi +1
In this paper, we look for the vacuum static spherically symmetric solution in the mimetic gravity scenario based on the conformal invariance principle. The trivial solution is a s…
Quasinormal Modes of Generalized Black Holes: delta-Kerr Spacetime
Alireza Allahyari, Hassan Firouzjahi, Bahram Mashhoon
The nonlinear superposition of the delta-metric and the Kerr metric results in delta-Kerr metric that represents a deformed Kerr black hole with delta = 1 + q, where q > 0 is propo…
Black hole shadow with a cosmological constant for cosmological observers
Javad T. Firouzjaee, Alireza Allahyari
We investigate the effect of the cosmological constant on the angular size of a black hole shadow. It is known that the accelerated expansion which is created by the cosmological c…