Constraining Dark Energy with Type Ia Supernovae and Large-Scale Structure

  title={Constraining Dark Energy with Type Ia Supernovae and Large-Scale Structure},
  author={Saul Perlmutter and Michael S. Turner and Martin White},
  journal={Physical Review Letters},
Measurements of the distances to type Ia supernovae have produced strong evidence that the expansion of the Universe is accelerating, implying the existence of a nearly uniform component of dark energy with negative pressure. We show that constraints to this mysterious component based upon large-scale structure nicely complement the SN Ia data, and that together they require {Omega}{sub X}={rho}{sub X}/{rho}{sub crit}{element_of}(0.6,thinsp0.7) and w=p{sub X}/{rho}{sub X}{lt}{minus}0.6 (95… 

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