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Paper: The Accelerating Universe
Volume: 342, 1604-2004: Supernovae as Cosmological Lighthouses
Page: 443
Authors: Schmidt, B.P.
Abstract: Over the past ten years astronomers 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. As future experiments attempt to better characterize the equation of state of the matter leading to the observed acceleration, systematic effects will ultimately limit progress.
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