39 citations · 76 across the 5 of their papers we have counts for
4 papers · 1 filter
Shadow of topologically charged rotating braneworld black hole
Hao-Ran Zhang, Peng-Zhang He, Lei-Shao +2
In this paper, we discuss optical properties of the topologically charged rotating black hole. We study the horizon, the photon region, the shadow of the black hole and other obser…
Shadow cast by a rotating and nonlinear magnetic-charged black hole in perfect fluid dark matter
Tian-Chi Ma, He-Xu Zhang, Peng-Zhang He +3
We derived an exact solution of the spherically symmetric Hayward black hole surrounded by perfect fluid dark matter (PFDM). By applying the Newman-Janis algorithm, we generalized…
Shadows of rotating Hayward-de Sitter black holes with astrometric observables
Peng-Zhang He, Qi-Qi Fan, Hao-Ran Zhang +1
Motivated by recent work on rotating black hole shadow [Phys. Rev. D101, 084029 (2020)], we investigate the shadow behaviors of rotating Hayward-de Sitter black hole for static obs…
The cosmological constant from space-time discreteness
Qi-Qi Fan, Cong Li, Hao-Ran Zhang +2
We regard the background of space-time as a physical system composed of discrete volume elements at the Planck scale and get the internal energy of space-time by Debye model. A tem…