Light-cone effect and clustering of high-z objects

Details Light-cone effect and clustering of high-z objects Light-cone effect and clustering of high-z objects

Dec 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998tx19.confe.552s&link_type=abstract

Abstracts of the 19th Texas Symposium on Relativistic Astrophysics and Cosmology, held in Paris, France, Dec. 14-18, 1998. Eds.:

Astronomy and Astrophysics

Astrophysics

Scientific paper

While all the cosmological observations are carried out on the null hypersurface of an observer at z = 0, or, the light-cone, the clustering statistics has been properly defined only on the constant-time hypersurface. We develop a theoretical formulation for the two-point correlation functions on the light-cone, and derive the practical approximate expressions relevant to the discussion of clustering of high-redshift objects at large separations. As a specific example, we present predictions of the two-point correlation functions for the Durham/AAT, SDSS and 2dF quasar catalogues. We also briefly discuss the effects of adopted luminosity function, cosmological parameters and bias models.

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