Elucidating cosmological model dependence with
Center for Quantum Spacetime, Sogang University, 121-742, Seoul, South Korea
2 Department of Physics, Sogang University, 121-742, Seoul, South Korea
3 School of Physics, Institute for Research in Fundamental Sciences (IPM), P.O.Box 19395-5531, Tehran, Iran
Accepted: 1 October 2021
Published online: 9 October 2021
We observe that the errors on the Hubble constant , a universal parameter in any FLRW cosmology, can be larger in specific cosmological models than Gaussian processes (GP) data reconstruction. We comment on the prior mean function and trace the smaller GP errors to stronger correlations, which we show precludes all well studied dynamical dark energy models. We also briefly illustrate cosmographic expansions as another model independent cosmological reconstruction. Our analysis suggests that “cosmological model independence”, especially in the statement of Hubble tension, has become a misnomer.
© The Author(s) 2021
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