Mapping the Dark Energy Equation of State

Details Mapping the Dark Energy Equation of State Mapping the Dark Energy Equation of State

Jan 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005iaus..216...59l&link_type=abstract

Maps of the Cosmos, Proceedings of IAU Symposium No. 216, held during the IAU General Assembly XXV in Sydney, Australia, 14-17 J

Physics

Scientific paper

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.

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