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Abstract: This paper examines free-form modeling of gravitational lenses using Bayesianensembles of pixelated mass maps. The priors and algorithms from previous workare clarified and significant technical improvements are made. Lensreconstruction and Hubble Time recovery are tested using mock data from simpleanalytic models and recent galaxy-formation simulations. Finally, usingpublished data, the Hubble Time is inferred through the simultaneousreconstruction of eleven time-delay lenses. The result isH 0^{-1}=13.7^{+1.8} {-1.0} Gyr.



Author: Jonathan Coles

Source: https://arxiv.org/



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