Speaker
Description
We herein present what we propose could be a plausible solution to the current, in-interesting and topical problem in cosmology — the Hubble Tension. This problem of the Hubble tension seems to have thrown all of cosmology into a crisis. By employing the seemingly temarious hypothesis of varying Fundamental Natural Constants (FNCs), namely Planck's constant, h, we demonstrate that for the case where the cosmological Interstellar Medium (ISM) is a perfect vacuo with a refractive index of unity, the supernovae derived H0-value can be brought down from its current lofty height of: 73.30 ± 1.03 km/s/Mpc, down to a more humble and modest value of: 68.70 ± 0.30 km/s/Mpc, and within the margins of error, this new value is in agreement with the Tip of the Red Giant Branch (TRGB) derived H0-value, namely: 69.80 ± 2.20 km/s/Mpc, and this is much closer to the CMB-derived H0-value: 67.40 ± 0.50 km/s/Mpc. At a 2.2σ-level of statistical significance in discrepancy, this new H0-value reduces the tension by 88%, and this surely is a most welcome development. On the other hand, if the ISM is assumed to be homogeneous and isotropic with a slightly varying, if not near constant refractive index, for most photon wavelengths, then, a refractive index value of: 1.010 ± 0.006, does bring the new SNe-derived H0-value into complete and total concordance with the CMB-derived H0-value, thus resolving the tension altogether. The final concordance H0-value that matches or resolves both measurements after a final correction of the ISM's refractive index is found to be: 68.00 ± 0.90 km/s/Mpc.
| Stream | Science |
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