Aether Lagrangian for galactic black hole parameters

The Aether Physics Model (APM) presents a classical effective field description in which a structured Aether carries distributed magnetic-charge capacity together with a scalar “length-density” field that governs light propagation and compact-object scales. In this framework, galactic black holes arise when the Aether curl reaches a reference value fixed by QMU (Quantum Measurement Units) ledger identities; specifically, the reference curl is set by the ratio of the maximum magnetic charge squared to the product of the electron mass and the Compton wavelength. A single velocity ledger states that the speed of light equals the Compton wavelength times the quantum frequency, linking optical behavior to the same ledger that normalizes gravity. The resulting prediction for the event-horizon radius is simple: it equals two times an effective factor times the usual Schwarzschild radius. The effective factor, called feff, summarizes local composition by encoding how bound matter, especially neutrons, compresses Aether units relative to unbound electrons and protons. Diffuse, unbound environments drive feff close to one-half, reproducing general-relativistic shadow sizes; fully bound, stable matter drives feff toward unity, predicting horizons twice the general-relativistic value. Event Horizon Telescope measurements for M87* and Sgr A* are consistent with feff near one-half, aligning APM predictions with observations while preserving falsifiable departures in bound-matter regimes. The model remains strictly within QMU and Gaussian-cgs ledgers and anticipates distinctive “Aether imprints” near compact objects, including rotation of polarization and helical jet collimation, which provide concrete experimental discriminants in addition to shadow sizes.