4D Einstein-Gauss-Bonnet gravity: Massless particles and absorption of planar spin-0 waves
General Relativity and Quantum Cosmology
2020-11-30 v1
Abstract
We investigate the absorption cross section of planar scalar massless waves impinging on spherically symmetric black holes which are solutions of the novel 4D Einstein-Gauss-Bonnet theory of gravity. Besides the mass of the black hole, the solution depends also on the Gauss-Bonnet constant coupling. Using the partial waves approach, we show that the absorption cross section depends on the Gauss-Bonnet coupling constant. Our numerical results present excellent agreement with the low- and high- frequency approximations, including the so-called sinc approximation.
Keywords
Cite
@article{arxiv.2011.13446,
title = {4D Einstein-Gauss-Bonnet gravity: Massless particles and absorption of planar spin-0 waves},
author = {Haroldo C. D. Lima Junior and Carolina L. Benone and Luís C. B. Crispino},
journal= {arXiv preprint arXiv:2011.13446},
year = {2020}
}
Comments
Published in Physics Letters B