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The median density of the Universe
Jens Stücker, Philipp Busch, Simon D. M. White
Despite the fact that the mean matter density of the universe has been measured to an accuracy of a few percent within the standard CDM paradigm, its median density is not known…
Modelling the line-of-sight contribution in substructure lensing
Giulia Despali, Simona Vegetti, Simon D. M. White +2
We investigate how Einstein rings and magnified arcs are affected by small-mass dark-matter haloes placed along the line-of-sight to gravitational lens systems. By comparing the gr…
Assembly Bias and Splashback in Galaxy Clusters
Philipp Busch, Simon D. M. White
We use publicly available data for the Millennium Simulation to explore the implications of the recent detection of assembly bias and splashback signatures in a large sample of gal…