Bridging the Gap Between Simply Parametrized and Free-Form Pixelated Models of Galaxy Lenses: The Case of WFI 2033-4723 Quad

@article{Barrera2021BridgingTG,
  title={Bridging the Gap Between Simply Parametrized and Free-Form Pixelated Models of Galaxy Lenses: The Case of WFI 2033-4723 Quad},
  author={Bernardo Barrera and Liliya L.R. Williams and Jonathan P. Coles and Philipp Denzel},
  journal={The Open Journal of Astrophysics},
  year={2021}
}
We study the radial and azimuthal mass distribution of the lensing galaxy in WFI 2033-4723. Mindful of the fact that modeling results depend on modeling assumptions, we examine two very different recent models: simply parametrized (SP) models from the H0LiCOW collaboration, and pixelated free-form (FF) glass models. In addition, we fit our own models which are a compromise between the astrophysical grounding of SP, and the flexibility of FF approaches. Our models consist of two offset… Expand

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