From a locality-principle for new physics to image features of regular spinning black holes with disks

Understand

Current observations present unprecedented opportunities to probe the true nature of black holes, which must harbor new physics beyond General Relativity to provide singularity-free descriptions.

• To test paradigms for this new physics, it is necessary to bridge the gap all the way from theoretical developments of new-physics models to phenomenological developments such as simulated images of black holes embedded in astrophysical disk environments.
• In this paper, we construct several steps along this bridge.
• We construct a novel family of regular black-hole spacetimes based on a locality principle which ties new physics to local curvature scales.