Large Scale Clustering at High Redshift

Details Large Scale Clustering at High Redshift Large Scale Clustering at High Redshift

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002nmgm.meet.2155m&link_type=abstract

"THE NINTH MARCEL GROSSMANN MEETING On Recent Developments in Theoretical and Experimental General Relativity, Gravitation and R

Physics

Scientific paper

We present a detailed analysis of the evolution of galaxy clustering with redshift, specifically aimed to put constraints on epoch-dependent models for the bias (quantity which indicates how the distribution of "light" can trace the distribution of the underlying dark matter; for further details see [12]). As a first step we put together all the available measurements from different surveys (Stromlo-APM [10], IRAS [16], Las Campanas [8], CFRS [9], HDF1 [4], HDF2 [11], Keck K-band [2], CNOC2 [3], Lyman Break Galaxies1 [5], Lyman Break Galaxies2 [1]), covering z ≃ 0 to z ≃ 4.5, and we calculated the values for the r.m.s galaxy fluctuation density on a 8h-1 Mpc scale, σ8,g. This has been repeated for different cosmologies. We find that the amplitude of galaxy clustering shows a general trend of decreasing at redshifts z ≲ 2 and increasing beyond that: the signal obtained for the Lyman break galaxies or for those objects detected in the Hubble Deep Field North at z ~ 3 and beyond is very strong, comparable to the clustering of present day galaxies ...

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