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PIRSA:09110128

Video URL

https://pirsa.org/09110128

Void or Dark Energy?

          @misc{ scivideos_PIRSA:09110128,
            doi = {10.48660/09110128},
            url = {https://pirsa.org/09110128},
            author = {Moffat, John},
            keywords = {Cosmology},
            language = {en},
            title = {Void or Dark Energy?},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2009},
            month = {nov},
            note = {PIRSA:09110128 see, \url{https://scivideos.org/index.php/pirsa/09110128}}
          }

John Moffat Perimeter Institute for Theoretical Physics

Talk numberPIRSA:09110128
DOI10.48660/09110128
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

Two possible explanations for the type SNe Ia supernovae observations are a nonlinear, underdense void embedded in a matter dominated Einstein-de Sitter spacetime or dark energy in the ?CDM model. Both of these alternatives are faced with Copernican fine-tuning problems. A case is made for the void scenario that avoids introducing undetected dark energy.