http://arxiv.org/abs/1906.06411
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.
A. Delhom, C. Macedo, G. Olmo, et. al.
Tue, 18 Jun 19
26/73
Comments: 9 pages, 7 figures, Accepted for publication in PRD
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