# Absorption by black hole remnants in metric-affine gravity

## TL;DR

This paper numerically studies how nonsingular solutions in metric-affine gravity absorb radiation, revealing a spectrum with quasibound states linked to a stable photonsphere, bridging black holes and wormhole-like objects.

## Contribution

It introduces a numerical analysis of absorption spectra for nonsingular solutions in metric-affine gravity, highlighting their unique quasibound states and stable photonsphere features.

## Key findings

- Spectrum characterized by quasibound states
- Existence of stable photonsphere
- Solutions interpolate between black holes and wormholes

## Abstract

Using numerical methods, we investigate the absorption properties of a family of nonsingular solutions {which arise in different metric-affine theories, such as quadratic and Born-Infeld gravity.} These solutions continuously interpolate between Schwarzschild black holes and naked solitons with wormhole topology. The resulting spectrum is characterized by a series of quasibound states excitations, associated with the existence of a stable photonsphere.