The 2dF Galaxy Redshift Survey: Cosmological Parameters and Galaxy Biasing

Details The 2dF Galaxy Redshift Survey: Cosmological Parameters and Galaxy Biasing The 2dF Galaxy Redshift Survey: Cosmological Parameters and Galaxy Biasing

2002-05-22

arxiv.org/abs/astro-ph/0205382v1

Astronomy and Astrophysics

Astrophysics

11 pages, 3 figures included, invited review at 'New Trends in Theoretical and Observational Cosmology', The 5th RESCEU Sympos

Scientific paper

The 2dF Galaxy Redshift Survey (2dFGRS) has already measured over 220,000 redshifts of nearby (z ~0.1) galaxies. It allows us to estimate fundamental cosmological parameters and to subdivide the survey into subsets according to the galaxy intrinsic properties. The large-scale structure analysis of the survey has already yielded several significant results: (i) the shape of the power spectrum of fluctuations is consistent with the Lambda - Cold Dark Matter concordance model; (ii) from joint analysis of the 2dFGRS data with the Cosmic Microwave Background anisotropies the linear-theory rms mass fluctuations is sigma_8m ~ 0.73, lower than the COBE-alone normalization and previous estimates from cluster abundance and cosmic shear; (iii) The biasing parameter of bright galaxies on scales > 10 Mpc/h is nearly unity; and (iv) on scales smaller than < 10 Mpc/h red galaxies are more strongly clustered than blue galaxies.

Affiliated with

Also associated with

No associations

Rating

The 2dF Galaxy Redshift Survey: Cosmological Parameters and Galaxy Biasing does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The 2dF Galaxy Redshift Survey: Cosmological Parameters and Galaxy Biasing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The 2dF Galaxy Redshift Survey: Cosmological Parameters and Galaxy Biasing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-453961