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This research aims to determine if regular black hole interiors can create observable effects on external regions like the photon-sphere.

July 15, 2026Open Access

External Observability Bounds for Curvature-Threshold Regular Black Hole Interiors

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This research aims to determine if regular black hole interiors can create observable effects on external regions like the photon-sphere.
Analyzed regular black hole interiors using a Planck-curvature threshold approach.
Examined two types of regularizing profiles: exponentially decaying and Hayward-type.
Conducted a second-order time-domain evolution analysis for local effects.
Exponential profile corrections are minimally impactful, showing non-perturbative small deviations.
Hayward-type profile corrections are significant, suppressed by the inverse square of black hole mass in Planck units.
Demonstrated strong decoupling between curvature-threshold regularization and exterior ringdown responses.

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Implication

This work investigates black hole interiors' observable effects on photon-spheres and ringdown regions, suggesting vital insights into gravitational wave inference.

Cite This Study

Paruzel et al. (2026) studied this question.

synapsesocial.com/papers/6a57242188b21df875480998 https://doi.org/10.5281/zenodo.21347251

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Implication

This work investigates black hole interiors' observable effects on photon-spheres and ringdown regions, suggesting vital insights into gravitational wave inference.

External Observability Bounds for Curvature-Threshold Regular Black Hole Interiors

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Discussion

Implication

Cite This Study

External Observability Bounds for Curvature-Threshold Regular Black Hole Interiors

Key Points

Discussion

Implication

Cite This Study

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