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gr-qc2025
The Penrose process in rotating regular black holes
Anjan Kar, Ayan Dey, Sayan Kar
We investigate the Penrose process of energy extraction in the context of rotating regular black holes. Previously known geometries, as well as a new rotating regular black hole ge…
gr-qc2025
Diverse regular spacetimes using a parametrised density profile
Anjan Kar, Sayan Kar
We explore the construction of diverse regular spacetimes (black holes and defects) in General Relativity (GR) using a generic parametrised density profile (the Dekel-Zhao profile)…