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Non-parametric reconstruction of the cosmological \textit{jerk} parameter

The cosmological jerk parameter $j$ is reconstructed in a non-parametric way from observational data independent of a fiducial cosmological model. From this kinematical quantity, the equation of state parameter for composite matter distribution is also found out. The result shows that there is a deviation from the $Λ$CDM model close to $z=1.5$, at the $3σ$ confidence level.

preprint2020arXivOpen access

Purba Mukherjee Narayan Banerjee

astro-ph.CO gr-qc

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Purba Mukherjee Narayan Banerjee

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Non-parametric reconstruction of the cosmological \textit{jerk} parameter

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