Superradiance in static black hole spacetimes
CL Benone, LCB Crispino - Physical Review D, 2016 - APS
We investigate the absorption of a massive and charged scalar field in a Reissner-
Nordström background. We compare our numerical results for the absorption cross section …
Nordström background. We compare our numerical results for the absorption cross section …
Quasinormal modes of scale dependent black holes in ()-dimensional Einstein-power-Maxwell theory
Á Rincón, G Panotopoulos - Physical Review D, 2018 - APS
We study for the first time the stability against scalar perturbations, and we compute the
spectrum of quasinormal modes of three-dimensional charged black holes in Einstein-power …
spectrum of quasinormal modes of three-dimensional charged black holes in Einstein-power …
Exploring non-commutativity as a perturbation in the Schwarzschild black hole: quasinormal modes, scattering, and shadows
In this work, by a novel approach to studying the scattering of a Schwarzschild black hole,
the non-commutativity is introduced as perturbation. We begin by reformulating the Klein …
the non-commutativity is introduced as perturbation. We begin by reformulating the Klein …
Quasinormal modes and shadow of noncommutative black hole
In this paper we investigate quasinormal modes (QNM) for a scalar field around a
noncommutative Schwarzschild black hole. We verify the effect of noncommutativity on …
noncommutative Schwarzschild black hole. We verify the effect of noncommutativity on …
Electrically charged regular black holes in nonlinear electrodynamics: Light rings, shadows, and gravitational lensing
Within nonlinear electrodynamics (NED), photons follow null geodesics of an effective
geometry, which is different from the geometry of the spacetime itself. Over the last years …
geometry, which is different from the geometry of the spacetime itself. Over the last years …
Universality of high-energy absorption cross sections for black holes
Y Décanini, G Esposito-Farese, A Folacci - Physical Review D—Particles …, 2011 - APS
We consider the absorption problem for a massless scalar field propagating in static and
spherically symmetric black holes of arbitrary dimension endowed with a photon sphere. For …
spherically symmetric black holes of arbitrary dimension endowed with a photon sphere. For …
[HTML][HTML] Shadow, absorption and Hawking radiation of a Schwarzschild black hole surrounded by a cloud of strings in Rastall gravity
Q Li, C Ma, Y Zhang, ZW Lin, PF Duan - The European Physical Journal C, 2022 - Springer
This paper studies the black hole shadow, absorption cross section, and Hawking radiation
of a massless scalar field in the background of a static spherically symmetric black hole …
of a massless scalar field in the background of a static spherically symmetric black hole …
Quasinormal modes of black holes in Einstein-power-Maxwell theory
G Panotopoulos, Á Rincón - International Journal of Modern Physics …, 2018 - World Scientific
In the present work, we compute the spectrum of quasinormal frequencies of four-
dimensional (4D) charged black holes (BHs) in Einstein-power-Maxwell (EpM) theory. In …
dimensional (4D) charged black holes (BHs) in Einstein-power-Maxwell (EpM) theory. In …
Hawking radiation by spherically-symmetric static black holes for all spins. II. Numerical emission rates, analytical limits, and new constraints
In the companion paper [Phys. Rev. D 103, 104010 (2021) PRVDAQ 2470-0010
10.1103/PhysRevD. 103.104010] we have derived the short-ranged potentials for the …
10.1103/PhysRevD. 103.104010] we have derived the short-ranged potentials for the …
Absorption of a massive scalar field by a charged black hole
We calculate the absorption cross section of a massive neutral scalar field impinging upon a
Reissner-Nordström black hole. First, we derive key approximations in the high-and low …
Reissner-Nordström black hole. First, we derive key approximations in the high-and low …