Supernovae, CMB, and gravitational leakage into extra dimensions

  title={Supernovae, CMB, and gravitational leakage into extra dimensions},
  author={Cedric Deffayet and Susana J. Landau and Julie Raux and Matias Zaldarriaga and Pierre Astier},
  journal={Physical Review D},
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. 

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