English

Asymmetry in the reconstructed deceleration parameter

Cosmology and Nongalactic Astrophysics 2017-02-01 v1 General Relativity and Quantum Cosmology

Abstract

We study the orientation dependence of the reconstructed deceleration parameter as a function of redshift. We use the Union 2 and Loss datasets, by using the well known preferred axis discussed in the literature, finding the best fit reconstructed deceleration parameter. We found that a low redshift transition of the reconstructed q(z)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.

Cite

@article{arxiv.1606.07333,
  title  = {Asymmetry in the reconstructed deceleration parameter},
  author = {Carla Bernal and Victor H. Cardenas and Veronica Motta},
  journal= {arXiv preprint arXiv:1606.07333},
  year   = {2017}
}

Comments

9 pages, 12 figures

R2 v1 2026-06-22T14:32:41.310Z