A large-scale structure model for gravitational lensing

Details A large-scale structure model for gravitational lensing A large-scale structure model for gravitational lensing

Jun 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...259..413b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 259, no. 2, p. 413-422.

Astronomy and Astrophysics

Astrophysics

32

Astronomical Models, Cosmology, Galactic Clusters, Galactic Evolution, Gravitational Lenses, Correlation, Dark Matter, Hubble Constant, Universe

Scientific paper

A large-scale structure formation model is presented which seems appropriate for some of the purposes of gravitational lensing. It is based on the adhesion approximation, which allows for a fast implementation of the time transfer of initial density perturbations. We apply a simple, but analytically tractable galaxy formation scheme to the model which is shown to yield the correct two-point correlation properties and the observed distance scale between galaxy clusters. Some of the lensing properties of the simulated matter distribution are investigated, and the impact of galaxy-galaxy correlations on lensing is studied using nearest-neighbor distance distributions. The results are obtained for both the HDM and CDM cosmogonies.

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