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

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 نشر من قبل Narayan Banerjee
 تاريخ النشر 2020
  مجال البحث فيزياء
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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 $Lambda$CDM model close to $z=1.5$, at the $3sigma$ confidence level.



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