Quantized Vortices in Superfluid Dark Matter Predict Excessive Halo Spin–Filament Alignment: Ruled Out by SAMI and MaNGA Data
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Quantized Vortices in Superfluid Dark Matter Predict Excessive Halo Spin–Filament Alignment: Ruled Out by SAMI and MaNGA Data AUTHOR: Robert Tilford (Hays, Kansas) | roberttilford19@gmail.com ABSTRACT: High-resolution simulations of superfluid dark matter (SFDM) composed of ultralight bosons (mass ~10^-22 eV) demonstrate that even mildly rotating galactic halos form long-lived lattices of quantized vortices. These vortices exert a coherent torque that aligns the halo angular momentum vector nearly parallel to the nearest large-scale cosmic filament. Theoretical models predict a mean alignment signal of <|cos theta|> approx 0.8–0.9 over gigayear timescales. We contrast this strong theoretical prediction with established observational constraints. Independent studies using integral field spectroscopy from the SAMI and MaNGA surveys report only weak or mass-dependent galaxy spin–filament alignments. THE DATA MISMATCH (THEORY VS. OBSERVATION): (A) The Theoretical Prediction (Vortex SFDM): Mechanism: Rigid Vortex Lattice Torque Predicted Alignment: Strong Parallel (0.8 to 0.9) Source: Mocz et al. (2019); Hui et al. (2021) (B) The Observational Reality (Real Universe): Survey 1 (SAMI): Welker et al. (2020) find alignment < 0.06 for late-type galaxies. Survey 2 (MaNGA): Kraljic et al. (2021) report low-amplitude signals (~0.04). Discrepancy: >5-sigma. CONCLUSION: The predicted SFDM vortex signal exceeds observational upper limits by more than 5 standard deviations (>5-sigma). Consequently, vortex-dominated superfluid dark matter models in the classic 10^-22 to 10^-21 eV mass window are strongly disfavoured by existing kinematic data. Rigid, long-lived vortex lattices cannot be the dominant angular-momentum transport mechanism in galactic halos. REFERENCES: Welker, C., et al. 2020, MNRAS, 491, 2864 Kraljic, K., et al. 2021, MNRAS, 504, 4626 Mocz, P., et al. 2019, Physical Review Letters, 123, 141301 Hui, L., et al. 2021, Physical Review D, 103, 063526
