FRA-1D turns galaxy rotation data into “dark-matter-free” curves: σ-gradients of gas+stars map straight to ρ_DM, κ ≈ 10⁻¹⁰ across SPARC. Code & full paper here → zenodo.org/records/1774...
#DarkMatter #DarkEnergy #MOND #AstroPhysics #GalaxyDynamics #RotationCurves #OpenScience #Python #SPARC
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