Clustering in the ESP redshift survey

Details Clustering in the ESP redshift survey Clustering in the ESP redshift survey

Jan 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999elss.conf...99g&link_type=abstract

"Evolution of large scale structure : from recombination to Garching /edited by A. J. Banday, R. K. Sheth, L. N. da Costa. Garch

Physics

Scientific paper

I will discuss the clustering of galaxies in the ESO Slice Project (ESP) galaxy redshift survey, as described by the redshift- and real-space correlation functions. Analysis of volume-limited subsamples gives the cleanest view on small and intermediate scales, while the use of the whole magnitude-limited catalogue is able to trace positive large-scale power in xi(s) out to ~80/h Mpc. This signal is less noisy than in the red-selected LCRS, and is pretty similar to what was seen by the IRAS 1.2Jy redshift survey. Also, it is fully consistent to that seen in the APM and EDSGC angular correlation functions, thus ruling out the claims that that is a spurious feature related to magnitude calibration errors. Analysis of the projection of xi(rp,pi) for the volume-limited samples, evidences a small but significant growth of clustering with luminosity (ro goes from 3.4 to 5.2 /h Mpc, when the sample selection passes from M<-18.5 to M<-20). Interestingly, this is not so clear in redshift space, indicating the importance of separating dynamical effects from real-space clustering. This will lead me to a discussion of the pairwise velocity dispersion as measured from these data.

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