Strong lensing optical depths in a LCDM universe II: the influence of the stellar mass in galaxies

Abstract

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 through the Millennium Simulation, by including the stellar components predicted by galaxy formation models. We find that the inclusion of these components greatly enhances the probability for strong lensing compared to a `dark matter only' universe. The identification of the `lenses' associated with strong-lensing events reveals that the stellar mass of galaxies (i) significantly enhances the strong-lensing cross-sections of group and cluster halos, and (ii) gives rise to strong lensing in smaller halos, which would not produce noticeable effects in the absence of the stars. Even if we consider only image splittings >10 arcsec, the luminous matter can enhance the strong-lensing optical depths by up to a factor of 2.

published in MNRAS

References in corpus (20)

• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• A direct empirical proof of the existence of dark matter
• The hierarchical formation of the brightest cluster galaxies
• COSMOS: 3D weak lensing and the growth of structure
• Density profiles of galaxy groups and clusters from SDSS galaxy-galaxy weak lensing
• The CFHTLS Strong Lensing Legacy Survey: I. Survey overview and T0002 release sample
• The Sloan Digital Sky Survey Quasar Lens Search. I. Candidate Selection Algorithm
• Strong lensing optical depths in a \LambdaCDM universe
• Parametric Strong Gravitational Lensing Analysis of Abell 1689
• The Sloan Digital Sky Survey Quasar Lens Search. II. Statistical Lens Sample from the Third Data Release
• The Sloan Digital Sky Survey Quasar Lens Search. III. Constraints on Dark Energy from the Third Data Release Quasar Lens Catalog
• The impact of gas physics on strong cluster lensing
• Arc sensitivity to cluster ellipticity, asymmetries and substructures
• Substructure in lensing clusters and simulations
• Testing the reliability of weak lensing cluster detections
• GaBoDS: The Garching-Bonn Deep Survey: VII. Probing galaxy bias using weak gravitational lensing
• Cosmological Parameters from the SDSS DR5 Velocity Dispersion Function of Early-Type Galaxies through Radio-Selected Lens Statistics
• The OLS-lens survey: The discovery of five new galaxy-galaxy strong lenses from the SDSS
• Strong lensing statistics in large, z~<0.2 surveys: bias in the lens galaxy population
• The giant arc statistics in the three year WMAP cosmological model

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