2 papers
gr-qc2025
Twisting shadows: Light rings, lensing and shadows of black holes in swirling universes
Zeus S. Moreira, Carlos A. R. Herdeiro, LuÃs C. B. Crispino
Using the Ernst formalism, a novel solution of vacuum general relativity (GR) was recently obtained [1], describing a Schwarzschild black hole (BH) immersed in a nonasymptotically…
gr-qc2025
Spinning generalizations of Majumdar-Papapetrou multi-black hole spacetimes: light rings, lensing and shadows
Zeus S. Moreira, Carlos A. R. Herdeiro, LuÃs C. B. Crispino
A generalization of the Majumdar-Papapetrou multi-black hole spacetime was recently constructed by Teo and Wan [1], describing charged and spinning (extremal) balanced black holes…