Measuring the Large-Scale Structure of the Universe

by John Peacock (Royal Observatory, University of Edinburgh)

Tuesday 20 Nov 2001, 16:30 → 17:30 Europe/Zurich

500/1-001 - Main Auditorium (CERN)

Modern surveys of the 3D distribution of galaxies now cover more than 100,000 redshifts, allowing detailed quantitative study of the mechanisms that generated large-scale structure. This talk presents results form the 2dF Galaxy Redshift Survey, concentrating on the key statistical measures of galaxy clustering, in particular redshift-space distortions and the large-scale power spectrum. The power spectrum is measured to high precision and allows the first detection of the influence of baryonic material in the formation of present-day structure. In combination with data on anisotropies in the microwave background, the global cosmological model is strongly constrained: it must be dominated by vacuum energy.

Organiser(s): Jasper Kirkby / EP Division

Note: * Tea & coffee will be served at 16.00 hrs.