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On the contribution of large scale structure to strong gravitational lensing
C. Faure, J. -P. Kneib, S. Hilbert +8
We study the correlation between the locations of galaxy-galaxy strong lensing candidates and tracers of large-scale structure from both weak lensing or X-ray emission. The COSMOS…
Ray-tracing through the Millennium Simulation: Born corrections and lens-lens coupling in cosmic shear and galaxy-galaxy lensing
S. Hilbert, J. Hartlap, S. D. M. White +1
(abridged) We study the accuracy of various approximations to cosmic shear and weak galaxy-galaxy lensing and investigate effects of Born corrections and lens-lens coupling. We use…
Strong lensing optical depths in a LCDM universe II: the influence of the stellar mass in galaxies
Stefan Hilbert, Simon D. M. White, Jan Hartlap +1
We investigate how strong gravitational lensing in the concordance LCDM cosmology is affected by the stellar mass in galaxies. We extend our previous studies, based on ray-tracing…
Imaging the Cosmic Matter Distribution using Gravitational Lensing of Pregalactic HI
Stefan Hilbert, R. Benton Metcalf, S. D. M. White
21-cm emission from neutral hydrogen during and before the epoch of cosmic reionisation is gravitationally lensed by material at all lower redshifts. Low-frequency radio observatio…
Strong lensing optical depths in a \LambdaCDM universe
Stefan Hilbert, Simon D. M. White, Jan Hartlap +1
We investigate strong gravitational lensing in the concordance CDM cosmology by carrying out ray-tracing along past light cones through the Millennium Simulation, the largest si…