activity
20062026
most citedThe Frontier Fields Lens Modeling Comparison Project

233 citations · 1.3k across the 34 of their papers we have counts for

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5 papers · 1 filter

astro-ph.GA2026

(Monty Python and the) HoliGRALE: A Hybrid GRALE Lens Inversion Methodology Diagnostically Evaluated with Synthetic and Real Data

Derek Perera, Jori Liesenborgs, John H. Miller +4

We present HoliGRALE (Hybrid, only light included, GRAvitational LEnsing), a hybrid lens modeling extension of the freeform method GRALE. HoliGRALE incorporates physically motivate…

astro-ph.GA2024★ 6 cited

Are Models of Strong Gravitational Lensing by Clusters Converging or Diverging?

Derek Perera, John H Miller, Liliya L. R. Williams +4

The increasingly large numbers of multiple images in cluster-scale gravitational lenses have allowed for tighter constraints on the mass distributions of these systems. Most lens m…

astro-ph.GA2024★ 6 cited

BUFFALO Wild Wings: A High Precision Free-Form Lens Model of MACSJ0416 with Constraints on Dark Matter from Substructure and Highly Magnified Arcs

Derek Perera, Liliya L. R. Williams, Jori Liesenborgs +10

We present new free-form and hybrid mass reconstructions of the galaxy cluster lens MACS J0416.12403 at using the lens inversion method GRALE. The reconstructions use…

astro-ph.GA2024

Extrapolating the projected potential of gravitational lens models: property-preserving degeneracies

Jori Liesenborgs, Derek Perera, Liliya L. R. Williams

While gravitational lens inversion holds great promise to reveal the structure of the light-deflecting mass distribution, both light and dark, the existence of various kinds of deg…

astro-ph.GA2023★ 1 cited

Free-Form and Hybrid Lens Models for SDSS J1004+4112: Substructure and Central Image Time Delay Constraints

Derek Perera, Liliya L. R. Williams, Jori Liesenborgs +2

SDSS J1004+4112 is a well studied gravitational lens with a recently measured time delay between its first and fourth arriving quasar images. Using this new constraint, we present…