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Bridging the Gap Between Simply Parametrized and Free-Form Pixelated Models of Galaxy Lenses: The Case of WFI 2033-4723 Quad
Bernardo Barrera, Liliya L. R. Williams, Jonathan P. Coles +1
We study the radial and azimuthal mass distribution of the lensing galaxy in WFI2033-4723. Mindful of the fact that modeling results depend on modeling assumptions, we examine two…
The lens SW05 J143454.4+522850: a fossil group at redshift 0.6?
Philipp Denzel, Onur Çatmabacak, Jonathan P. Coles +8
Fossil groups are considered the end product of natural galaxy group evolution in which group members sink towards the centre of the gravitational potential due to dynamical fricti…
A new strategy for matching observed and simulated lensing galaxies
Philipp Denzel, Sampath Mukherjee, Prasenjit Saha
The study of strong-lensing systems conventionally involves constructing a mass distribution that can reproduce the observed multiply-imaging properties. Such mass reconstructions…
Lessons from a blind study of simulated lenses: image reconstructions do not always reproduce true convergence
Philipp Denzel, Sampath Mukherjee, Jonathan P. Coles +1
In the coming years, strong gravitational lens discoveries are expected to increase in frequency by two orders of magnitude. Lens-modelling techniques are being developed to prepar…