20050311

The Two-Degree-Field Galaxy Redshift Survey

Otherwise known as 2dFGRS... "[was] a major spectroscopic survey taking full advantage of the unique capabilities of the Two-Degree Field facility built by the Anglo-Australian Observatory. Reliable redshift [distance and movement] data was obtained for 221414 galaxies... The survey has been used to address a variety of fundamental problems in galaxy formation and cosmology."

redshift plots from two-degree galaxy survey

Some of the results include: Galaxy clustering patterns; new parameters for density, mass and distribution of certain subatomic particles and dark matter; and evidence that expansion of the universe is accelerating. Data from the survey was also used to approximate the average color of the universe (first said to be turquoise-teal, later 'cosmic latte' beige).

model of galaxy distribution (and clumps of dark matter?)

See media reports about 2dFGRS and an overview of the 2dFGRS for more information.