What question did this study set out to answer?

The study aims to compare the U-Cell Model with the Dark Energy Survey's five-year dataset for Type Ia supernovae.

April 6, 20260 citationsOpen Access

The U-Cell Model vs DES SN5YR: Consistency with 1820 Type Ia Supernovae from the Dark Energy Survey Five-Year Dataset

Key Points

The study aims to compare the U-Cell Model with the Dark Energy Survey's five-year dataset for Type Ia supernovae.
Analyzed 1820 Type Ia supernovae from the DES SN5YR dataset
Performed statistical tests including chi-squared and Bayesian Information Criterion (BIC)
Conducted independent cross-checks with Pantheon+ data
Achieved chi²/dof value of 0.933, indicating a good fit
Obtained a ΔBIC of +7.5, showing UCM's strong statistical performance
Validated findings through different photometry and classification methods

Abstract

Tests UCM (Omegaₘ=0. 3166, w=-1) against the DES SN5YR Dovekiedataset (1820 SNe, z=0. 025-1. 14, Sanchez et al. 2024). MBanalytically marginalised. chi²/dof=1696. 5/1819=0. 933, ΔBIC=+7. 5-- the strongest BIC result of the series. Independent cross-checkon Pantheon+ using different photometry and classification pipeline.

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Cite This Study

Norbert Prebeck (Sat,) studied this question.

synapsesocial.com/papers/69d34edc9c07852e0af98588 https://doi.org/https://doi.org/10.5281/zenodo.19412631