Absorption Cross-section and Decay Rate of Rotating Linear Dilaton Black Holes

Understand

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.