87 citations · 132 across the 4 of their papers we have counts for
4 papers
Shape Degeneracies: the likely culprit for the differences between lens mass models of galaxy clusters
Liliya L. R. Williams, Derek C. Perera, Jori Liesenborgs +3
Sky-projected mass distributions of galaxy clusters are widely used to constrain particle properties of dark matter, to magnify in flux and angular extent high redshift background…
Ubiquity of density slope oscillations in the central regions of galaxy and cluster-sized systems
Anthony M. Young, Liliya L. R. Williams, Jens Hjorth
One usually thinks of a radial density profile as having a monotonically changing logarithmic slope, such as in NFW or Einasto profiles. However, in two different classes of common…
The Radial Orbit Instability in Collisionless N-Body Simulations
Eric I. Barnes, Paul A. Lanzel, Liliya L. R. Williams
Using a suite of self-gravitating, collisionless N-body models, we systematically explore a parameter space relevant to the onset and behavior of the radial orbit instability (ROI)…
Stellar and total mass in early-type lensing galaxies
Ignacio Ferreras, Prasenjit Saha, Liliya L. R. Williams
For 18 well-observed gravitationally lensed QSOs, we compare new non-parametric mass profiles for the lensing galaxies with stellar-population models derived from published HST pho…