Cosmic Magnetic Fields: SMBH-Jet Frozen Flux Along Wilson Filaments
Intergalactic magnetic fields of 10-100 nG with Mpc coherence length derive from SMBH jets carrying frozen flux along Wilson-skeleton filaments (V.T233). Vernstrom 2021 and Carretti 2023 measured ~30 nG in filaments — matching prediction and exceeding random-dynamo expectations by 1-2 orders of magnitude.
Overview
The origin of large-scale intergalactic magnetic fields is a longstanding open problem: orthodox dynamo theories struggle to explain Mpc-scale coherent fields in the cosmic web. Book V ch43 (“Bullet Cluster & LSS”) derives these fields topologically. V.T233 (SMBH-Jet Frozen Flux theorem) shows that supermassive-black-hole jets carry frozen magnetic flux along the Wilson-skeleton filaments that structure large-scale geometry. V.D291-292 formalize the Wilson skeleton and filament machinery; V.P157-158 and V.R414-415 record the predictions: intergalactic magnetic fields of 10-100 nG with Mpc coherence. Vernstrom et al. (2021) and Carretti et al. (2023) measured ~30 nG in filaments — consistent with the τ-prediction and 1-2 orders of magnitude above expectations from random dynamo amplification.
Detail
Orthodox explanations of cosmic magnetic fields fall into two categories: primordial seeds amplified by galactic dynamos (struggling with coherence length), and turbulent small-scale dynamo processes (struggling with the observed large-scale coherent component in filaments). The recent radio detections (Vernstrom 2021 LOFAR, Carretti 2023 MeerKAT) of coherent ~30 nG fields along cosmic-web filaments have sharpened the puzzle. Book V ch43 (books/V-CategoricalMacrocosm/latex/sections/part05/ch43-bullet-cluster-lss.tex) treats the problem through Wilson-loop holonomy structure: large-scale structure is organized around a Wilson skeleton whose edges correspond to filaments. V.D291-292 define the skeleton and filament objects; V.T233 proves that magnetic flux from SMBH jets is frozen into these topological edges, giving coherent Mpc-scale fields without needing a dynamo. V.P157-158 quantify the expected intergalactic field strength (10-100 nG); V.R414-415 compare against Vernstrom/Carretti observations (~30 nG), marking the prediction as observationally validated. Because the mechanism is topological rather than dynamical, coherence length is set by filament length (Mpc), not by turbulent correlation lengths (kpc) — directly addressing the orthodox coherence problem.
Result Statement
V.T233 + V.P157-158 + V.R414-415: Intergalactic magnetic fields of 10-100 nG with Mpc coherence derive from SMBH-jet frozen flux along Wilson filaments. Vernstrom 2021 and Carretti 2023 measurements (~30 nG) confirm the prediction.