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Pré-Publication, Document De Travail Année : 2024

Solving the Hubble Tension by Extracting Current CMB Temperature from the Union2 Supernova Database

Espen Gaarder Haug
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Eugene Tatum

Résumé

We will demonstrate that the formula proposed by Tatum et al. to predict the Cosmic Microwave Background (CMB) temperature in relation to observed (and theoretical) redshift fits the well-known formula T_t = T_0 (1 + z) , only when we have Beta= 0. We demonstrate how a rigorous mathematical approach can be used to extract a current CMB temperature of 2.72763 ±0.072 K from the 580 type Ia supernova data points in the Union2 database. Using redshift formula z = Sqrt(R_H/R_t) − 1 incorporated into our new CMB redshift prediction formula,” we find that the above current CMB temperature value is a remarkably good match for this particular data set. In addition, we can alternatively start out with the measured current CMB temperature and extract the Hubble constant from all 580 supernovae. We then get an estimated Hubble constant of about H0 = 66.8713 km/s/Mpc when using the CMB temperature from the recent Dhal et. al study [1] in combination with redshifts from all 580 supernovae. Furthermore, we get an estimated Hubble constant value of H0 = 66.8945 when starting out with the CMB temperature measured by Fixen et al. (2009) [2]. In summary, our simple redshift model essentially perfectly matches all 580 type Ia supernova redshifts while extracting H0 or T0 values. The Hubble constant we extract by this method fits very well with the Hubble constant extracted from the CMB temperature by other studies. We believe that our new approach likely solves the Hubble tension problem.
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Dates et versions

hal-04368837 , version 1 (01-01-2024)
hal-04368837 , version 2 (09-02-2024)
hal-04368837 , version 3 (16-02-2024)

Licence

Paternité - Pas d'utilisation commerciale - Pas de modification

Identifiants

  • HAL Id : hal-04368837 , version 3

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Espen Gaarder Haug, Eugene Tatum. Solving the Hubble Tension by Extracting Current CMB Temperature from the Union2 Supernova Database. 2024. ⟨hal-04368837v3⟩
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