Two-fold theoretical and experimental misinterpretation of luminosity in the origin of Hubble tension
Abstract
The comparison of the intrinsic luminosity of extragalactic objects detected at different redshifts requires the evaluation of the observed flux in a common rest-frame emission band. It is usually performed by adding a term to the observed magnitudes denominated K-correction. In this paper, the K-correction transformation has been carefully scrutinized. As a result of this inspection, it has been found that K-corrections systematically downgrades the measured energy flux by a factor of (1+z). C-correction, a more appropriate rest-frame magnitude transformation has been derived. C-correction has been applied to the re-analysis of JLA (Joint Light-curve analysis) supernovae sample. The best cosmological fit to JLA type Ia supernovae (SNIa) sample calibrated with CMB Planck $h=0.675$ for the common luminosity-angular distances relation $L2:D_L=D_A(1+z)^2$ corresponds to a closed Universe $L2(h_0=0.48,\Omega_M=2.25$). Nevertheless, considering the new luminosity-angular distances relation $L1:D_L=D_A(1+z)$ that accounts for expansion lensing, the new SNIa analysis converges to $L1(h_0=0.7558,\Omega_M=0.035,\Omega_\Lambda=0.965)$, providing a coherent explanation of the Hubble tension between Planck and SH0ES ($h=0.7422 \pm 0.0182$) results.
- Publication:
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arXiv e-prints
- Pub Date:
- March 2022
- DOI:
- 10.48550/arXiv.2203.01417
- arXiv:
- arXiv:2203.01417
- Bibcode:
- 2022arXiv220301417D
- Keywords:
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- Astrophysics - Cosmology and Nongalactic Astrophysics
- E-Print:
- Minor changes with respect to previous version