Supernovae, CMB, and gravitational leakage into extra dimensions

2002/01/31 by Cédric Deffayet, Susana J. Landau, Julien Raux +5 · 12 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Gamma-ray bursts and supernovae #astro-ph #gr-qc #hep-ph #hep-th

paper · pdf · doi:10.1103/physrevd.66.024019

published as Phys.Rev.D66:024019,2002 · 20 pages, 6 figures, typos corrected and minor changes before publication

arxiv created 2002/05/15 · openalex publication_date 2002/07/12 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We discuss observational constraints coming from CMB and type Ia supernovae for the model of an accelerated universe produced by gravitational leakage into extra dimensions. Our fits indicate that the model is currently in agreement with the data. We also give the equations governing the evolution of cosmological perturbations. Future observations will be able to severely constrain the model.

Citations

• Towards a refined cosmic concordance model: Joint 11-parameter constraints from the cosmic microwave background and large-scale structure

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