Key points are not available for this paper at this time.
This letter reports a new measurement of the density parameter Ω, which is the mass density of the universe relative to the critical density. The authors have measured the redshifts and fluxes of 1,000 field galaxies with a median redshift of 0.5. With this sample they determine Ω by measuring the volume element (to a scale factor H03) as a function of redshift. The measurement is sensitive to any kind of matter, luminous or dark. It is found that Ω = 0.9 (+0.7, -0.5), consistent with the Einstein-de Sitter model (Λ = 0, Ω = 1).
Loh et al. (Fri,) studied this question.