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Asymmetry in the reconstructed deceleration parameter
  • victor
victor

Corresponding Author:[email protected]

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Abstract

We study the orientation dependence of the reconstructed deceleration parameter as a function of redshift. We use the Union 2 data set, by using the well known preferred axis discussed in the literature, finding the best fit reconstructed deceleration parameter. We found that such a feature – a low redshift transition of the \(q(z)\) – is clearly absent in one direction and amazingly sharp in the opposite one. We discuss the possibility that such a behavior can be associated with large scale structures affecting the data.