What question did this study set out to answer?

The aim is to evaluate the performance of GCFT's interpolation function against established astrophysical relations.

June 19, 2026Open Access

CDN-263: The SPARC Test — GCFT Computational Discovery Note

Key Points

The aim is to evaluate the performance of GCFT's interpolation function against established astrophysical relations.
Tested dSph-calibrated interpolation function ν(x) against SPARC Radial Acceleration Relation with 2630 points and 14 bins.
Examined Baryonic Tully-Fisher Relation using a sample of 175 galaxies.
Pre-registration CDN-264 is set for a direct refit of the RAR.
ν_GCFT fails the RAR with a weighted RMS of 0.144 dex compared to MOND simple at 0.019 dex.
Underpredicts transition-zone by +0.165 dex across 7 bins.
Absence of cluster-scale floor κ_cl = 0.152 in the galaxy Newtonian regime.

Abstract

Tests GCFT's dSph-calibrated interpolation function ν (x) = 1 + κ (x·a₀) against the SPARC Radial Acceleration Relation (2630 points, 14 bins, 153 galaxies) and Baryonic Tully-Fisher Relation (175 galaxies). Result: νGCFT fails the RAR with weighted RMS 0. 144 dex (MOND simple: 0. 019 dex). Transition-zone underprediction of +0. 165 dex across 7 bins. Cluster-scale floor κcl = 0. 152 absent in galaxy Newtonian regime. CDN-264 pre-registered for direct RAR refit.

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