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

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

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• Stationary Scalar Clouds Around Maximally Rotating Linear Dilaton Black Holes
• Greybody factor and perturbation of a Schwarzschild black hole with string clouds and quintessence
• Greybody Factor for a Rotating Bardeen Black Hole by Perfect Fluid Dark Matter
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