paper

Opportunities for future supernova studies of cosmic acceleration

arXiv:astro-ph/0008314 · doi:10.1103/PhysRevLett.86.1939

Abstract

We investigate the potential of a future supernova dataset, as might be obtained by the proposed SNAP satellite, to discriminate among different ``dark energy'' theories that describe an accelerating Universe. We find that many such models can be distinguished with a fit to the effective pressure-to-density ratio, , of this energy. More models can be distinguished when the effective slope, , of a changing is also fit, but only if our knowledge of the current mass density, , is improved. We investigate the use of ``fitting functions'' to interpret luminosity distance data from supernova searches, and argue in favor of a particular preferred method, which we use in our analysis.

Four pages including figures. Final published version. No significant changes from v1

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