Absorption Cross-section and Decay Rate of Rotating Linear Dilaton Black Holes
arXiv:1602.04233 · doi:10.1016/j.astropartphys.2015.10.005
Abstract
We analytically study the scalar perturbation of non-asymptotically flat (NAF) rotating linear dilaton black holes (RLDBHs) in 4-dimensions. We show that both radial and angular wave equations can be solved in terms of the hypergeometric functions. The exact greybody factor (GF), the absorption cross-section (ACS), and the decay rate (DR) for the massless scalar waves are computed for these black holes (BHs). The results obtained for ACS and DR are discussed through graphs.
18 pages and 2 figures