Clustering of Radio Sources at High Redshift
Abstract
We investigate the largescale clustering of radio sources in the FIRST 1.4GHz survey by analysing their distribution function. We estimate the angular twopoint correlation function w(theta), the variance Psi_2, and skewness Psi_3 of the distribution; both w(theta) and Psi_2 show powerlaw behaviour with an amplitude corresponding a spatial correlation length of r_0 ~10 h^{1}Mpc. We detect significant skewness in the distribution, the first such detection in radio surveys, consistent with the nonlinear gravitational growth of perturbations from primordial Gaussian initial conditions. We also investigate how different theoretical predictions for the normalised variance sigma^2 can match our measurements.
 Publication:

19th Texas Symposium on Relativistic Astrophysics and Cosmology
 Pub Date:
 December 1998
 Bibcode:
 1998tx19.confE.523M