2008/11/30 by Marina Seikel, Max Camenzind
Earth and Planetary Sciences · Mathematics · Physics and Astronomy · #Astrophysics #Black Holes and Theoretical Physics #Consistency (knowledge bases) #Cosmological model #Cosmology #Cosmology and Gravitation Theories #Dark energy #Deceleration parameter #Dimension (graph theory) #Earth Systems and Cosmic Evolution #Friedmann equations #Geometry #Lambda #Mathematical physics #Mathematics #Physics #Pure mathematics #Quantum mechanics #Supernova #Theoretical physics #Universe #Work (physics) #astro-ph #gr-qc
paper · pdf · doi:10.1103/physrevd.79.083531
published as Phys.Rev.D79:083531,2009 · 7 pages, 8 figures, matches version accepted by Phys. Rev. D
arxiv created 2009/04/15 · openalex publication_date 2009/04/29 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
In this work, we consider a braneworld model with a timelike extra dimension. There are strong constraints to the parameter values of such a model resulting from the claim that there must be a physical solution to the Friedmann equation at least between now and the time of recombination. We fitted the model to supernova type Ia data and checked the consistency of the result with other observations. For parameter values that are consistent with observations, the braneworld model is indistinguishable from a \ensuremathΛCDM universe as far as the considered cosmological tests are concerned.