https://doi.org/10.1140/epjp/s13360-022-02744-1
Regular Article
Redshift systematics and the 
tension problem
1
Instituto de Física, Universidade Federal da Bahia, 40210-340, Salvador, BA, Brazil
2
PPGCosmo, CCE, Universidade Federal do Espírito Santo, 29075-910, Vitória, ES, Brazil
3
Observatório Nacional, 20921-400, Rio de Janeiro, RJ, Brazil
a
saulo.carneiro.ufba@gmail.com
Received:
24
February
2022
Accepted:
20
April
2022
Published online:
3
May
2022
Recent studies have shown that a small systematic redshift error (
) of 
in the type Ia supernovae (SNe) measurements can affect the estimates of cosmological parameters. Here, we show that it could also lead to a reduction of 
in the local value of the Hubble parameter , when very low-z SNe are included in the fit of the magnitude-redshift data. The estimated value, 
, differs by 
from the latest CMB result from the Planck collaboration.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2022
