Select All
PIRSA:09110128

Void or Dark Energy?

APA

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

John Moffat Perimeter Institute for Theoretical Physics

Talk numberPIRSA:09110128
Source RepositoryPIRSA
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.