From the 1 of 12 linked papers with an AI index.
12 papers
Two shadows of a single black hole: Vacuum birefringence phenomena within Einstein-nonlinear-electrodynamics
Marco A. A. de Paula, Haroldo C. D. Lima, Pedro V. P. Cunha +2
The paper investigates photon propagation in black holes sourced by a nonlinear electrodynamics model, showing that vacuum birefringence leads to two distinct photon trajectories a…
Absorption and scattering spectra of massive scalar waves in charged regular black hole spacetimes
Marco A. A. Paula, Carolina L. Benone, LuÃs C. B. Crispino
Regular black holes (RBHs) can be seen as possible alternatives to standard black holes (BHs), since these geometries do not have a curvature singularity. As a way of improving our…
Interaction of the gravitational Hawking radiation and a static point mass
João P. B. Brito, Atsushi Higuchi, LuÃs C. B. Crispino
We study the interaction of a stress-energy tensor describing a static point mass supported by a string outside a Schwarzschild black hole with the gravitons of the Hawking radiati…
Larmor radiation as a witness to the Unruh effect
Atsushi Higuchi, George E. A. Matsas, Daniel A. T. Vanzella +5
We discuss the emission of radiation from general sources in quantum scalar, electromagnetic and gravitational fields using the Rindler coordinate frame, which is suitable for a un…
Multipole decomposition of the gravitational field of a point mass at the black hole horizon
João P. B. Brito, Atsushi Higuchi, LuÃs C. B. Crispino
The portion of the gravitational energy absorbed by the black hole due to the radial infall of a point mass is known to diverge at leading order in perturbation theory. This diverg…
Hairy black holes via gravitational decoupling: light rings, absorption and spectral lines
Gabriel P. Ribeiro, Renan B. Magalhães, LuÃs C. B. Crispino
We investigate the absorption of massless scalar waves by three distinct hairy black hole solutions obtained through the gravitational decoupling method, considering the weak, the…