Absorption of massless scalar waves by electrically charged regular black holes

We study the absorption cross section of a massless test scalar field, for arbitrary frequency values, in the background of an Ayón-Beato-García electrically charged regular black hole spacetime. We show that Ayón-Beato-García regular black holes can mimic the absorption properties of Reissner-Nordström black holes in the whole frequency range, for small-to-moderate values of the normalized electric charge.