The 2dF Galaxy Redshift Survey as a Cosmological Laboratory

Abstract

The 2dF Galaxy Redshift Survey (2dFGRS) of 230,000 redshifts of nearby (z~0.1) galaxies is now complete. It has allowed the 2dFGRS team and others to estimate fundamental cosmological parameters and to study galaxy intrinsic properties. Here we highlight three recent key results from the survey: (i) an upper limit of about 2eV on the total mass of the three neutrino flavours, and an intriguing reasonable fitting of the 2dFGRS power spectrum to a Mixed Dark Matter model without a Cosmological Constant, but with a low Hubble constant; (ii) the bimodality of the galaxy population in both spectral parameterisation and in colour; and (iii) the clustering of different galaxy types and evidence for relative stochastic biasing.

Based on invited talks at RESCEU6 (Tokyo) and 'Tully60' (Sydney); to appear in Pub. Ast. Soc. of Australia, ed. J. Bland-Hawthorn; 4 pages, 4 figures

References in corpus (4)

• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
• The 2dF Galaxy Redshift Survey: correlation functions, peculiar velocities and the matter density of the Universe
• The 2dF Galaxy Redshift Survey: galaxy clustering per spectral type
• Galaxy spectral parameterisation in the 2dF Galaxy Redshift Survey as a diagnostic of star formation history

Cited by in corpus (4)

• Superclusters of galaxies from the 2dF redshift survey. I. The catalogue
• Superclusters of galaxies from the 2dF redshift survey. II. Comparison with simulations
• Superclusters of galaxies in the 2dF redshift survey. III. The properties of galaxies in superclusters
• The richest superclusters. I. Morphology