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Is there any measurable redshift dependence on the SN Ia absolute magnitude?

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arxiv 2006.05461 v1 pith:TQ46I4XA submitted 2020-06-09 astro-ph.CO

Domenico Sapone , Savvas Nesseris , Carlos A. P. Bengaly This is my paper · ORCID
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keywords absolutemagnitudeapproachesvaryingagreementbinningcasescompilation
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abstract

We test the cosmological implications of a varying absolute magnitude of Type Ia supernovae using the Pantheon compilation, by reconstructing different phenomenological approaches that could justify a varying absolute magnitude, but also approaches based on cosmic voids, modified gravity models and a binning scheme. In all the cases considered in this work, we find good agreement with the expected values of the standard $\Lambda$CDM model and no evidence of new physics.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Reconstructing the redshift evolution of Type Ia supernovae absolute magnitude

    astro-ph.CO 2025-04 reject novelty 5.0 of 10

    A Gaussian Process reconstruction finds the Type Ia supernova absolute magnitude is consistent with a constant value, with a redshift-averaged M = -19.456 ± 0.059 that is 3.2 sigma below the SH0ES local calibration.

  2. Alleviating the Hubble Tension with a Local Void and Transitions of the Absolute Magnitude

    astro-ph.CO 2025-04 conditional novelty 5.0 of 10

    Deep LTB void models with two or three distance-dependent jumps in the supernova absolute magnitude fit Pantheon+ and Planck data well and push the inferred local Hubble constant toward the SH0ES value.

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