ESSENCE: Measuring the Dark Energy Equation of State

Details ESSENCE: Measuring the Dark Energy Equation of State ESSENCE: Measuring the Dark Energy Equation of State

Jul 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003hst..prop.9860g&link_type=abstract

HST Proposal ID #9860

Physics

Hst Proposal Id #9860 Cosmology

Scientific paper

The accelerating universe appears to be dominated by a dark energy with a significant negative pressure. The ratio of the pressure to density of this mysterious energy {its equation of state} is an observable which can differentiate between the proliferating candidate theories. We propose to estimate the dark energy equation of state by observing Type Ia supernovae at redshifts near z=0.7 with HST in concert with the on-going ESSENCE NOAO Survey program that is discovering and studying supernovae between 0.3

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