Absorption and scattering of massless scalar wave from Regular Black Holes
arXiv:2212.01798 · doi:10.1007/s10714-022-03034-y
Abstract
In this work, we numerically investigate the scattering and absorption cross section of the massless scalar field from some well-known regular black holes by using the partial wave approach. Our computational results indicate that the larger the parameters, the lower the associated total absorption cross section maxima. When compared to the Schwarzschild black hole, the scattering cross section is enhanced in some regular black hole spacetimes, meanwhile the scattering width is narrow in the forward orientation. Moreover, it is found that the null geodesics of the critical impact parameter and the geometrical optical value in the high frequency regime have similar changing behavior.
15 pages, 5 figures
References in corpus (6)
- Calculating black hole shadows: Review of analytical studies
- Regular black holes with a nonlinear electrodynamics source
- Regular black holes in quadratic gravity
- Scattering and absorption of gravitational plane waves by rotating black holes
- Fermion scattering by a Schwarzschild black hole
- Absorption of planar massless scalar waves by Bardeen regular black holes