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Absorption and scattering of massless scalar wave from Regular Black Holes

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arxiv 2212.01798 v2 pith:EWKUIW5Y submitted 2022-12-04 gr-qc

Absorption and scattering of massless scalar wave from Regular Black Holes

classification gr-qc
keywords blackscatteringabsorptioncrossregularsectionholeholes
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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In this work, we numerically investigate the scattering and absorption cross section of the massless scalar field from some well-known regular black holes by using the partial wave approach. Our computational results indicate that the larger the parameters, the lower the associated total absorption cross section maxima. When compared to the Schwarzschild black hole, the scattering cross section is enhanced in some regular black hole spacetimes, meanwhile the scattering width is narrow in the forward orientation. Moreover, it is found that the null geodesics of the critical impact parameter and the geometrical optical value in the high frequency regime have similar changing behavior.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Polarization-dependent observational signatures of Weyl-coupled photons around a black hole

    gr-qc 2026-07 conditional novelty 5.5

    Weyl-coupled photons on Schwarzschild produce a polarization-split double shadow (62% edge separation at α/M²=0.75) and a parity-protected backward birefringence signal that vanishes at α=0.