2016/06/23 by Carla Bernal, Víctor H. Cárdenas, Victor H. Cardenas +2
Economics, Econometrics and Finance · Mathematics · Physics and Astronomy · #Astrophysics #Asymmetry #Complex Systems and Time Series Analysis #Cosmology and Gravitation Theories #Deceleration parameter #Function (biology) #Geometry #Magnitude (astronomy) #Mathematics #Orientation (vector space) #Particle physics #Physics #Quantum mechanics #Redshift #Scale (ratio) #Scale parameter #Statistical and numerical algorithms #Statistical physics #Statistics #astro-ph.CO #gr-qc
paper · pdf · doi:10.1016/j.physletb.2016.12.008
9 pages, 12 figures
arxiv created 2016/06/23 · openalex publication_date 2016/12/09 · arxiv updated 2017/02/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study the orientation dependence of the reconstructed deceleration parameter as a function of redshift. We use the Union 2 and Loss datasets, and the well known preferred axis discussed in the literature, and find the best fit reconstructed deceleration parameter. Our results show that a low redshift transition of the reconstructed q(z) is clearly absent in one direction and amazingly sharp in the opposite one. We discuss the possibility that such behavior can be associated to large scale structures affecting the data.