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Auteur principal:	Henderson, Iain Turnbull
Format:	Recurso digital
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Publié:	Zenodo 2026
Sujets:	cosmic voids Roman Space Telescope metric signature transition dark matter Integrated Sachs-Wolfe effect void size function void-galaxy cross-correlation redshift-space distortions Field Topology Theory modified gravity pre-registration observational cosmology supervoids clock-rate gradient falsifiable predictions
Accès en ligne:	https://doi.org/10.5281/zenodo.20132789
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This document pre-registers three falsifiable observational predictions for the Nancy Grace Roman Space Telescope (launch May 2027) derived from the Field Topology Theory (FTT) framework, in which cosmic supervoids are proposed as zones of metric signature transition from Lorentzian (−,+,+,+) to Euclidean (+,+,+,+) character. The three predictions are: (1) confirmation and void-size scaling of the observed ISW excess amplitude A_ISW ≈ 4–5 in the Roman supervoid sample; (2) an anomalous clock-rate gradient at void boundaries appearing as a multipole signal in the Void-Galaxy Cross-Correlation Function beyond standard redshift-space distortions; (3) a physical minimum void size cutoff in the Roman Void Size Function distinct from survey selection effects. Each prediction is stated with the required Roman survey mode (HLWAS), data products, cross-correlation partners, methodology, and explicit falsification criteria. No new telescope pointings are required: all tests use HLWAS Level 2 data products already planned for standard BAO, RSD, and void cosmology science. This summary is positioned relative to Verza, Pisani, Doré et al. (ApJ 2025, arXiv:2410.19713), which forecasts more than 80,000 voids from the Roman HLWAS. The document is offered as a pre-registration in the spirit of falsifiability: Roman will either find the predicted anomalies or it will not. Predictions are grounded in the published FTT Zenodo catalogue. The ISW and clock-rate predictions draw on published results with existing observational support. The minimum void size prediction requires further formal development before it constitutes a first-principles derivation.

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