A Newly-Derived Cosmological Redshift Formula Which Solves the Hubble Tension and Yet Maintains Consistency with Tt = T0(1 + z),theRh = ct Principle and the Stefan-Boltzmann Law

Espen Gaarder Haug and Eugene Terry Tatum
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Espen Gaarder Haug: orwegian University of Life Sciences and Tempus Gravitational Laboratory, Norway
Eugene Terry Tatum: Independent Researcher, Bowling Green, Kentucky, USA

European Journal of Applied Physics, 2025, vol. 7, issue 1, 48-50

Abstract: Numerous cosmological redshift formulae have been suggested in the field of cosmology. One of these is the well-known cosmological redshift formula used in the Λ-CDM model and in some R_h = ct models. In a recent type of “black hole” cosmology model, the redshift formula is derived from three fundamental principles: that the Stefan-Boltzmann law holds with respect to perfect and almost perfect black bodies; that the universe follows the R_h = ct principle; and that the time-dependent CMB temperature in relation to cosmological redshift is given by the observed relation T_t = T_0(1 + z). These three principles have recently been used by Haug and Tatum [1] to derive z = Sqrt(R_h/R_t) − 1, which has led to a simple but powerful solution to the Hubble tension [2–4]. This note highlights the importance of these three principles in relation to the new cosmological redshift formula and describes new ways to represent the same cosmological redshift formula.

Keywords: Black body; black hole cosmology; cosmological redshift; Rh= ct cosmology (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:epw:physic:v:7:y:2025:i:1:id:11368

DOI: 10.24018/ejphysics.2025.7.1.368

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