Statistics of Quasars Multiply Imaged by Galaxy Clusters

Details Statistics of Quasars Multiply Imaged by Galaxy Clusters Statistics of Quasars Multiply Imaged by Galaxy Clusters

2005-06-08

arxiv.org/abs/astro-ph/0506175v1

Astrophys.J.654:93-98,2006

Astronomy and Astrophysics

Astrophysics

6 pages, 3 Figures, submitted to ApJ

Scientific paper

10.1086/509094

We compute the expected number of quasars multiply imaged by cluster size dark halos for current wide field quasar surveys by carrying out a large ensemble of ray tracing simulations through clusters from a cosmological N-body simulation of the LCDM cosmology. Our calculation predicts ~ 4 quasar lenses with splittings theta > 10" in the SDSS spectroscopic quasar sample, consistent with the recent discovery of the wide separation lens SDSSJ1004+4112 which has theta=14.6". The SDSS faint photometric quasar survey will contain ~12 multiply imaged quasars with splittings theta > 10". Of these, ~ 2 will be lenses with separations theta > 30", and ~ 2 will be at high redshift (z ~ 4).

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