Recent Very Long Baseline Interferometry (VLBI) observations (Prabu et al., 2026) have successfully quantified the polar jet power and stellar wind deflection in the Cygnus X-1 black hole binary system. Traditional kinematic models, which attribute these jets to generalized magnetic expulsion from an accretion disk, struggle to mechanistically explain the precise 10% energy exhaust ratio and the fluid-like physical deflection of the jet without relying on ad hoc parameterization. This brief communication proposes that these phenomena strongly align with the macroscopic indicators of the Electron Flow Model (EFM), as detailed in the foundational manuscript, Marabūt's Theory of Gravity. By redefining the black hole as a volumetric hydrodynamic sink actively consuming vacuum flux, the 10% ratio emerges natively as the thermodynamic exhaust limit of the core. Furthermore, the EFM demonstrates that the relativistic equatorial shear of the sink forces this exhaust strictly along the polar vectors. The observed 5.2-degree deflection provides compelling macroscopic evidence that the jet is not merely radiation traveling through an empty void, but a highly pressurized fluid stream physically colliding with the companion star's stellar wind. This paper serves as an observational case study, illustrating that black hole jets are the natural, predictable behavior of a thermodynamic engine actively consuming and venting the universal vacuum flux. Foundational Mathematical Framework and Primary Theory (v41): https://doi.org/10.5281/zenodo.19672868 Interactive simulations and full computational framework available at: https://marabutmarabut.github.io/Theory-of-Gravity/
Marabūt et al. (Sun,) studied this question.
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