52 citations · 301 across the 34 of their papers we have counts for
7 papers · 1 filter
Geodesics, accretion disk, gravitational lensing, time delay, and effects on neutrinos induced by a non-commutative black hole
A. A. Araújo Filho, N. Heidari, Ali Övgün
This paper explores gravitational phenomena associated with a non-commutative black hole. Geodesic equations are derived, and a thin accretion disk is analyzed to model the black h…
Signatures of a de Sitter-core black hole in ringing, transmission and optical appearance
N. Heidari, A. A. Araújo Filho, V. Vertogradov and +1
We investigate a static, asymptotically flat black hole whose central region approaches a de Sitter vacuum. The geometry is controlled by the ADM mass and a core scale , a…
Quasinormal modes and emission rate of ModMax (A)dS black holes
Behzad Eslam Panah, Angel Rincon, Narges Heidari
By considering a new model of nonlinear electrodynamics, known as the modified Maxwell (ModMax), and taking into account the topological and the cosmological constants in Einstein'…
Absorption, Scattering, Geodesics, Shadows and Lensing Phenomena of Black Holes in Effective Quantum Gravity
N. Heidari, A. A. Araújo Filho, R. C. Pantig +1
In this work, we investigate the signatures of black holes within an effective quantum gravity framework recently proposed in the literature [1] . We begin by outlining the general…
Quantum gravity effects on particle creation and evaporation in a non-commutative black hole via mass deformation
A. A. Araújo Filho, N. Heidari, Ali Övgün
In this work, we explore a gravitational non-commutative black hole by gauging the de Sitter SO(4,1) group and employing the Seiberg-Witten map. Specifically, we examine modificati…
Scattering effects of bumblebee gravity in metric affine formalism
N. Heidari, Caio F. B. Macedo, A. A. Araújo Filho +1
In this work, we explore a Schwarzschild-like black hole within the framework of metric--affine bumblebee gravity. First, we investigate the behavior of the Kretschmann scalar and…
The impact of an antisymmetric tensor on charged black holes: evaporation process, geodesics, deflection angle, scattering effects and quasinormal modes
A. A. Araújo Filho, N. Heidari, J. A. A. S. Reis +1
In this paper, we investigate the influence of anti-symmetric tensor effects, which trigger the Lorentz symmetry breaking, on charged spherically symmetric black holes. Initially,…