What question did this study set out to answer?

The study aims to evaluate the performance of GCFT's interpolation function in predicting the Tully-Fisher Relation for galaxies.

June 19, 2026Open Access

CDN-262 — The Tully-Fisher Prediction (GCFT Art Edition)

Key Points

The study aims to evaluate the performance of GCFT's interpolation function in predicting the Tully-Fisher Relation for galaxies.
Tests the Baryonic Tully-Fisher Relation based on GCFT's κ(a) using observations from 12 CDN-260 galaxies.
Identifies tension in the External Field Effect for nearby ultrafaint dSphs.
Pre-registers CDN-263 for addressing EFE resolution.
GCFT QUMOND slope (3.408) aligns closely with observed slope (3.429) compared to MOND simple (3.095).
Finds significant evidence for External Field Effect tension in nearby ultrafaint dSphs.

Abstract

Establishes GCFT's κ(a) as a MOND interpolation function ν(x)=1+κ(x·a₀). Tests the Baryonic Tully-Fisher Relation: GCFT QUMOND slope (3.408) tracks observed (3.429) better than MOND simple (3.095) on 12 CDN-260 galaxies. Identifies External Field Effect tension for nearby ultrafaint dSphs. D11 reframed from "what is κ?" to "why this interpolation function?" Pre-registers CDN-263 for EFE resolution.

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