Table of Contents
Journal of Gravity
Volume 2014 (2014), Article ID 231727, 9 pages
http://dx.doi.org/10.1155/2014/231727
Research Article

Absorption and Scattering Cross Section of Regular Black Holes

College of Physics and Information Science, Hunan Normal University, Changsha, Hunan 410081, China

Received 1 December 2013; Revised 16 January 2014; Accepted 10 February 2014; Published 26 March 2014

Academic Editor: Edward Malec

Copyright © 2014 Hai Huang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

By using the partial wave method, we investigate the absorption of massless scalar wave from regular black hole. We numerically carry out the absorption cross section and find that the larger angular momentum quantum number is, the smaller the corresponding maximum value of partial absorption cross section is. Comparing with Schwarzschild case, the absorption cross section of regular black holes is strengthened in both low and high frequency regions, and the absorption cross section oscillates around the geometric optical value in the high frequency region. Generally speaking, the scattering flux is strengthened and its scattering width becomes narrower in the forward direction. There are obvious contrast of scattering properties of different type of regular black hole.