We investigate whether the Navarro--Frenk--White (NFW) halo profile can arise from the infrared, static limit of loop--corrected gravity. The NFW profile accurately describes dark matter halos in cosmological simulations, yet its theoretical origin remains unsettled. Starting from a spectral (Källén--Lehmann) representation of the dressed graviton two--point function, we analyze the infrared structure of the polarization operator and separate monopole and curvature--dependent contributions. After renormalization of the monopole term (implemented by imposing a vanishing monopole contribution in the infrared), the remaining curvature sector governs the static response. Under the assumption of strong infrared spectral concentration around a single characteristic scale r ₇^-1, the spectral integral reduces to an effective Yukawa kernel of a single scale. Acting with the curvature operator yields, in the static limit, the cumulative formequationg (s) =1- (1+s) e^-s, s=r ₇r, equationwhich coincides in functional form with the NFW mass profile. The relative deviation from the exact NFW form induced by residual spectral width is parametrically suppressed in the galactic weak--field regime. A direct consequence is the scaling relationequationv_ 0. 547\, G Mₓ₎ₓ{r ₇}, equationwhich reproduces characteristic Milky Way rotation velocities for observed halo parameters. If the curvature sector is removed, the model reduces to a pure cosmological constant background without halo structure. These results indicate that an NFW--type profile can emerge macroscopically from infrared loop effects under controlled renormalization conditions. \\\: NFW, infrared gravity, loop corrections, spectral methods, \\ renormalization, galaxy dynamics
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Adrian Casado Eide (Wed,) studied this question.
www.synapsesocial.com/papers/69c37bf3b34aaaeb1a67ed2d — DOI: https://doi.org/10.5281/zenodo.19187199
Adrian Casado Eide
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