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Mapping the Dark Energy Equation of State

Published online by Cambridge University Press:  23 September 2016

Eric V. Linder
Eric V. Linder*
Affiliation:
Berkeley Lab, 1 Cyclotron Road, M/S 50R5008, Berkeley, CA 94720-8158 USA; [email protected]

Abstract

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The acceleration of the expansion of the universe has deep implications for structure formation, the composition of the universe, and its fate. Roughly 70% of the energy density is in a dark energy, whose nature remains unknown. Mapping the expansion history through supernovae, mapping the geometry of the universe and formation of structure through redshift surveys, and mapping the distance to recombination through the cosmic microwave background provide complementary, precise probes of the equation of state of the dark energy. Together these next generation maps of the cosmos can reveal not only the value today, but the redshift variation, of the equation of state, providing a critical clue to the underlying physics.

Type
Session I: Cosmic Microwave Background and Cosmology
Information
Symposium - International Astronomical Union , Volume 216: Maps of the Cosmos , 2005 , pp. 59 - 66
Copyright
Copyright © Astronomical Society of the Pacific 2005 

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