https://doi.org/10.1140/epjc/s10052-022-10378-x
Regular Article - Theoretical Physics
Determination of the kinematic parameters from SNe Ia and cosmic chronometers
1
Departamento de Física, Faculdade de Engenharia de Guaratinguetá, Universidade Estadual Paulista (UNESP), Av. Dr. Ariberto Pereira da Cunha 333, 12516-410, Guaratinguetá, SP, Brazil
2
Instituto de Ciências e Engenharia, Universidade Estadual Paulista (UNESP), R. Geraldo Alckmin, 519, 18409-010, Itapeva, SP, Brazil
Received:
18
November
2021
Accepted:
30
April
2022
Published online:
19
May
2022
In this work, by assuming a spatially flat Universe, we have tested 8 kinematic parametrization models with H(z) data from Cosmic Chronometers and SNe Ia from Pantheon compilation. Our aim is obtain the current values for the Hubble constant (
), deceleration parameter (
), jerk (
) and snap (
) parameters independently from a dynamical model. By using a Bayesian model comparison, three models are favoured: a model with the deceleration parameter (q) linearly dependent on the redshift, q linearly dependent on the scale factor and a model with a constant jerk. The model with constant jerk is slightly favoured by this analysis, furnishing 
km/s/Mpc, 
, 
and 
. The other models are compatible with the constant jerk model, except for the snap parameter, where we have found 
for the model with q linearly dependent on the scale factor.
All uncertainties in the Abstract correspond to 95% c.l.
© The Author(s) 2022
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Funded by SCOAP3
