Journal
ASTROPHYSICAL JOURNAL
Volume 537, Issue 2, Pages L77-L80Publisher
IOP Publishing Ltd
DOI: 10.1086/312762
Keywords
cosmology : theory; gravitational lensing; large-scale structure of universe; methods : statistical
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Gravitational lensing, as well as the velocity field and the cosmological light cone warp, changes the observed correlation function of high-redshift objects. We present an analytical expression of the three-dimensional correlation function, simultaneously including those three effects. When two objects are separated over several hundred Mpc along a line of sight, the observed correlation function is dominated by the effect of gravitational lensing rather than intrinsic clustering. For a canonical lambda-cold dark matter model, the lensing signals in the galaxy-galaxy and galaxy-quasar correlations are beyond noise levels in large-scale redshift surveys like the Sloan Digital Sky Survey.
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