What question did this study set out to answer?

The study aims to assess the robustness of the Channel-B conclusion in strong lensing tests.

June 27, 2026Open Access

CDN-340: The Channel-B Invariance Test

Key Points

The study aims to assess the robustness of the Channel-B conclusion in strong lensing tests.
Replaced locked GCFT BE interpolation with MOND-simple in the analysis.
Analyzed 20 strong lenses to detect changes in missing-mass residuals.
All 20 lenses continued to require Channel B for accurate modeling.
The conclusion regarding contracted halo remains unchanged despite the interpolation adjustment.

Abstract

A SLACS strong-lens robustness test showing that replacing the locked GCFT BE interpolation with MOND-simple does not erase the missing-mass residual: all 20 lenses still require Channel B, and the CDN-335 contracted-halo conclusion remains intact.

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