Interpreting the Clustering of Radio Sources

Abstract

We develop the formalism required to interpret, within a CDM framework, the angular clustering of sources in a deep radio survey. The effect of nonlinear evolution of density perturbations is discussed as is the effect of the assumed redshift distribution of sources. We also investigate what redshift ranges contribute to the clustering signal at different angular scales. Application of the formalism is focussed on the clustering detected in the FIRST survey but measurements made for other radio surveys are also investigated. We comment on the implications for the evolution of clustering.