84 citations · 214 across the 12 of their papers we have counts for
5 papers · 1 filter
A non-parametric approach to the relation between the halo mass function and internal dark matter structure of haloes
T. R. G. Richardson, P. -S. Corasaniti
Context. Galaxy cluster masses are usually defined as the mass within a spherical region enclosing a given matter overdensity (in units of the critical density). Converting masses…
Forecasting cosmological parameter constraints using multiple sparsity measurements as tracers of the mass profiles of dark matter haloes
P. S. Corasaniti, A. M. C. Le Brun, T. R. G. Richardson +4
The dark matter halo sparsity, i.e. the ratio between spherical halo masses enclosing two different overdensities, provides a non-parametric proxy of the halo mass distribution whi…
Timing the last major merger of galaxy clusters with large halo sparsity
T. R. G. Richardson, P. -S. Corasaniti
Numerical simulations have shown that massive dark matter haloes, which today host galaxy clusters, assemble their mass over time alternating periods of quiescent accretion and pha…
Non-Halo Structures and their Effects on Gravitational Lensing
T. R. G. Richardson, J. Stücker, R. E. Angulo +1
Anomalies in the flux-ratios of the images of quadruply-lensed quasars have been used to constrain the nature of dark matter. Assuming these lensing perturbations are caused by dar…
Analytical Solutions to the Mass-Anisotropy Degeneracy with Higher Order Jeans Analysis: A General Method
Thomas Richardson, Malcolm Fairbairn
The Jeans analysis is often used to infer the total density of a system by relating the velocity moments of an observable tracer population to the underlying gravitational potentia…