The clustering of galaxies in a complete redshift survey

Astronomy and Astrophysics – Astronomy

Scientific paper

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Galactic Clusters, Red Shift, Astronomical Catalogs, Correlation, Mass Distribution, Sky Surveys (Astronomy)

Scientific paper

The authors estimate the spatial two-point correlation function, using a complete redshift survey of 340 galaxies. The depth of the survey enables an analysis of galaxy correlations over the range of scales 1 < r < 100 h-1Mpc (h is Hubble's constant in units of 100 km s-1Mpc-1). At small scales the authors find new evidence that the correlation function steepens at r ≡ 5 h-1Mpc. At scales between 10 and 25 h-1Mpc they find tentative evidence of anticorrelation. At scales between 25 and 100 h-1Mpc, the analysis shows the correlation function to be close to zero, consistent with the idea that, at large scales, galaxies are distributed homogeneously.

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