Investigating Black Holes: New Theories and Models

Recent studies have made significant strides in understanding black holes through various theoretical frameworks. One study, published on December 5, 2025, investigates the shadow of a rotating braneworld black hole in dispersive plasma environments.

It finds that the size of the shadow is influenced by the background geometry and plasma density, with Event Horizon Telescope measurements constraining the tidal charge of supermassive black holes like M87* and Sgr A* (source: ArXiv General Relativity).

Another research article, released on December 7, 2025, provides a quantum treatment of black hole superradiance, showing that the growth of boson clouds around Kerr black holes can be explained within quantum field theory (source: ArXiv General Relativity).

This work highlights the potential for Kerr black holes to serve as probes for ultralight massive bosons. Furthermore, a separate study also dated December 7, 2025, explores extreme mass ratio inspirals in vector dark matter environments, predicting observable gravitational wave signatures from stellar-mass black holes merging with heavier black holes (source: ArXiv General Relativity).

Lastly, another paper from the same date critiques previous models of black holes in dark matter halos, emphasizing the need for consistent solutions to Einstein’s equations to accurately depict these structures (source: ArXiv General Relativity).

These ongoing investigations reflect a dynamic interplay between black hole physics, quantum mechanics, and dark matter theories.