Zobrazeno 1 - 10
of 2 420
pro vyhledávání: '"Benali M"'
Autor:
Benali, M., Balali, A. EL
In this paper, we generate a rotating solution of the reduced Kiselev black hole through the Newman-Janis formalism. Based on such solution, we remark different shadow behaviors by varying the involved parameters $r_k, a, \alpha$. Concretely, we obse
Externí odkaz:
http://arxiv.org/abs/2406.00788
In this paper, we construct the slowly rotating case of an asymptotically flat supermassive black hole embedded in dark matter using Newman-Janis procedure. Our analysis is carried with respect to the involved parameters including the halo total mass
Externí odkaz:
http://arxiv.org/abs/2401.02341
Motivated by M-theory compactifications, we investigate optical properties of black holes in the Starobinsky-Bel-Robinsion gravity. Precisely, we study the shadows and the deflection angle of light rays by non-rotating and rotating black holes in suc
Externí odkaz:
http://arxiv.org/abs/2304.03883
We investigate inflationary models in f(R,T) modified gravity with a kinetic coupling term \omega^2 G^{\mu\nu}\partial_{\mu}\phi\partial_{\nu}\phi having a positive factor needed to remove the ghosts. Taking f(R,T)=R+2\beta T, we calculate and analys
Externí odkaz:
http://arxiv.org/abs/2303.12561
We study the deflection angle and the trajectory of the light rays around black holes in M-theory scenarios. Using the Gauss-Bonnet theorem, we first compute and examine the deflection angle of the light rays near four and seven-dimensional AdS black
Externí odkaz:
http://arxiv.org/abs/2301.08321
We explore the shadows and the photon rings casted by black holes in cavity. Placing the observer inside such an isothermal background, we examine the influence of the cavity temperature T_{cav} and the charge Q on the involved optical aspect. After
Externí odkaz:
http://arxiv.org/abs/2206.00615
Using the Gauss-Bonnet theorem, we compute and examine the deflection angle of light rays by rotating regular black holes with a cosmological constant. By the help of optical geometries, we first deal with the Hayward black holes with cosmological co
Externí odkaz:
http://arxiv.org/abs/2204.10150
Autor:
Rousseau, A. *, Resnikoff, S., Vauloup-Fellous, C., Loukil, M., Barreau, E., Zina, S., Benali, M., Bouvet, M., Labetoulle, M.
Publikováno v:
In Journal Français d'Ophtalmologie December 2024 47(10)
Motivated by recent works on light deflection and shadow behaviors on AdS geometries, we investigate the deflection angle of light rays by superentropic black holes. Taking appropriate approximations, we first obtain the involved expression. For larg
Externí odkaz:
http://arxiv.org/abs/2203.11143
We investigate the shadow behaviors of the superentropic black holes in arbitrary dimensions. Using the Hamilton-Jacobi mechanism, we first obtain the associated null geodesic equations of motion. By help of a spheric stereographic projection, we dis
Externí odkaz:
http://arxiv.org/abs/2203.06774