http://arxiv.org/abs/2203.01417
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 constant ($H_0$) tension between Planck and SH0ES ($h=0.7422 \pm 0.0182$) results.
J. Vicente-Albendea
Fri, 4 Mar 22
19/63
Comments: N/A
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