Work

Covariance matrices for halo number counts and correlation functions

Year: 2011

Type: article

Abstract: Aims. We study the mean number counts and two-point correlation functions, along with their covariance matrices, of cosmological surveys such as for clusters. In particular, we consider correlation functions averaged over finite redshift intervals, which are well suited to cluster surveys or populations of rare objects, where one needs to integrate over nonzero redshift bins to accumulate enough statistics.

Source: Astronomy and Astrophysics

DOI: 10.1051/0004-6361/201117117

Authors: P. Valageas, N. Clerc, F. Pacaud, M. Pierre