Evidence from type Ia supernovae for an accelerating Universe
Date
2003
Authors
Schmidt, Brian
Journal Title
Journal ISSN
Volume Title
Publisher
Pergamon-Elsevier Ltd
Abstract
Over the past five years two teams have used type Ia supernovae to trace the expansion of the Universe to a look back time more than 70% of the age of the Universe. These observations show an accelerating Universe which is best explained by a cosmological constant, or other form of dark energy with an equation of state near w=p/ρ=-1. There are many possible lurking systematic effects, and while difficult to completely eliminate, none of these appears large enough to challenge current results. However, as future experiments attempt to better characterize the equation of state of the matter leading to the observed acceleration, these systematic effects will ultimately limit progress.
Description
Keywords
Keywords: Equations of state; Galaxies; Mathematical models; Supernovae; Astrophysics
Citation
Collections
Source
Chaos, Solitons and Fractals
Type
Journal article
Book Title
Entity type
Access Statement
License Rights
Restricted until
2037-12-31
Downloads
File
Description