A Screened Coherence-Field Phenomenology for Galactic Rotation Curves: Preliminary Tests of TDCAED with SPARC-LTG Data

This supplementary package accompanies the preliminary manuscript “A Screened Coherence-Field Phenomenology for Galactic Rotation Curves: Preliminary Tests of TDCAED with SPARC-LTG Data.” The package contains Python scripts, SPARC-LTG rotation-curve input files, processed CSV/TXT outputs, generated figures, reproducibility notes, and documentation used in the preliminary TDCAED-Sigmoid validation. The central model tested is: v_TDCAED²(r) = v_bar²(r) + A_C r² / (r² + r_t²) The included workflow performs benchmark fitting for NGC 3198, compares TDCAED-Sigmoid beta=2 against NFW, Burkert, MOND-simple, and baryonic-only models, runs a rapid validation across 171 processed SPARC-LTG galaxies, and analyzes the fitted TDCAED parameters. The results should be treated as preliminary. The batch validation uses a rapid fitting pipeline rather than full global optimization. Future versions are expected to include stronger global optimization, uncertainty propagation, baryonic scaling tests, gravitational lensing analysis, and deeper field-theoretic development of the TDCAED coherence term.