Greybody factors for a minimally coupled scalar field in three-dimensional Einstein-power-Maxwell black hole background

Abstract

In the present work we study the propagation of a probe minimally coupled scalar field in Einstein-power-Maxwell charged black hole background in (1+2) dimensions. We find analytical expressions for the reflection coefficient as well as for the absorption cross-section in the low energy regime, and we show graphically their behaviour as functions of the frequency for several values of the free parameters of the theory.

6 pages, 3 figures, to appear in: Physical Review D