Observational approaches to understanding dark energy

Abstract

Illuminating the nature of dark energy is one of the most important challenges in cosmology today. In this review I discuss several promising observational approaches to understanding dark energy, in the context of the recommendations by the U.S. Dark Energy Task Force and the ESA-ESO Working Group on Fundamental Cosmology.

12 pages. Invited review at the 23rd International Symposium on Lepton and Photon Interactions at High Energy (LP07)

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