New charged dynamical particles in spatially flat FLRW space-times

The research operates within the established paradigm of theoretical physics, specifically the application of Einstein-Maxwell theory to cosmology. The foundational framework is the Friedmann-Lemaître-Robertson-Walker (FLRW) model of the universe. The paper's contribution is to find new, exact solutions to the governing equations of this paradigm to describe a more complex physical system: dynamical, charged black holes embedded within the cosmological fluid. It articulates and refines the existing paradigm rather than challenging its core principles.

This preprint is classified as Normal Science because it represents a classic "puzzle-solving" activity. The author derives new solutions to the well-established Einstein-Maxwell equations by extending previously developed models (the author's own "κ-models") to include electric charge. This work does not identify anomalies or propose a new theoretical framework. Instead, it demonstrates the robustness of the current paradigm by successfully applying it to a more intricate physical scenario, thereby increasing the scope and precision of the existing model for describing objects within our universe.