PIRSA:09110128

Void or Dark Energy?

APA

Moffat, J. (2009). Void or Dark Energy?. Perimeter Institute. https://pirsa.org/09110128

MLA

Moffat, John. Void or Dark Energy?. Perimeter Institute, Nov. 17, 2009, https://pirsa.org/09110128

BibTex

          @misc{ pirsa_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},
            year = {2009},
            month = {nov},
            note = {PIRSA:09110128 see, \url{https://pirsa.org}}
          }
          

John Moffat Perimeter Institute for Theoretical Physics

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.