Document Type

Article

Publication Date

2024

DOI

10.1088/1402-4896/ad570f

Publication Title

Physica Scripta

Volume

99

Issue

7

Pages

075043 (1-9)

Abstract

One of the most important problems vexing the ΛCDM cosmological model is the Hubble tension. It arises from the fact that measurements of the present value of the Hubble parameter performed with low-redshift quantities, e.g. the Type IA supernova, tend to yield larger values than measurements from quantities originating at high-redshift, e.g. fits of cosmic microwave background radiation. It is becoming likely that the discrepancy, currently standing at 5σ, is not due to systematic errors in the measurements. Here we explore whether the self-interaction of gravitational fields in General Relativity, which are traditionally neglected when studying the evolution of the Universe, can contribute to explaining the tension. We find that with field self-interaction accounted for, both low- and high-redshift data are simultaneously well-fitted, thereby showing that gravitational self-interaction yield consistent H0 values when inferred from SnIA and cosmic microwave background observations. Crucially, this is achieved without introducing additional parameters.

Rights

© 2024 The Authors.

Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0) license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

Data Availability

Article states: "All data that support the findings of this study are included within the article (and any supplementary files)."

Original Publication Citation

Sargent, C., Clark, W., Deur, A., & Terzić, B. (2024). Hubble tension and gravitational self-interaction. Physica Scripta, 99(7), 1-9, Article 075043. https://doi.org/10.1088/1402-4896/ad570f

ORCID

0000-0003-3217-9984 (Sargent), 0009-0006-8571-3465 (Clark), 0000-0002-2203-7723 (Deur), 0000-0002-9646-8155 (Terzic)

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