Nonparametric Reconstruction of the Om Diagnostic to Test ΛCDM

Nonparametric Reconstruction of the Om Diagnostic to Test ΛCDM

In this work, we consider an Om diagnostic using a non-parametric reconstruction by employing the Loess–Simex factory. This procedure allows us to perform a model-independent comparison for w(z) with the astrophysical data. The concordance model can be tested with the advantage that our approach rep...

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Bibliographic Details
Main Authors: Celia Escamilla-Rivera, Júlio C. Fabris
Format: Article
Language:English
Published: MDPI AG 2016-12-01
Series:Galaxies
Subjects:
cosmic acceleration
dark energy
non-parametric diagnostics
Online Access:http://www.mdpi.com/2075-4434/4/4/76
Description
Summary:In this work, we consider an Om diagnostic using a non-parametric reconstruction by employing the Loess–Simex factory. This procedure allows us to perform a model-independent comparison for w(z) with the astrophysical data. The concordance model can be tested with the advantage that our approach represents an alternative and efficient way to relax the use of priors and find a possible w that reliably describes the data with no previous knowledge of a cosmological model.
ISSN:2075-4434

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