Mpc3, where h corresponds to the value of the Hubble constant, H0, divided by 100. H0 is approximately 70 km/s/Mpc. The largest redshift observed by the survey corresponds to a distance of 600 h−1 Mpc. Survey results The principal results obtained for the field of cosmology by the 2dF survey are: The measurement of the density parameter of non-relativistic matter (baryonic matter plus dark matter plus massive neutrinos) The detection of Baryon acoustic oscillations, and as a consequence the relationship between the density of baryonic matter and dark matter Limits on the contribution of massive neutrinos to dark matter, putting a limit on the sum of the masses of the three families of neutrinos at 1.8 eV. All these results are in agreement with the measurements of other experiments, notably those of WMAP. They confirm the standard cosmological model. The 2dF survey also yields a unique view on our local cosmic environment. In the figure a 3-D reconstruction of the inner parts of the survey is shown, revealing an impressive view on the cosmic structures in the nearby universe. Several superclusters stand out, such as the Sloan Great Wall, one of the largest structures in the universe known to date (see also Huge-LQG). See also Lambda-CDM model Dark matter References External links Official site of the 2dF Galaxy Redshift Survey The 2dF Galaxy Redshift Survey: spectra and redshifts − 2001 Royal Astronomical Society paper describing the survey Official site of the Two Degree Field instrument system Observational astronomy Astronomical surveys 1997 in science