SL advanced models

From Lensing School 2011

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Part 1: Advanced strong lens models

  • Pixellated source reconstruction
    • introduction to linear models
    • exact Laplace approximation
    • regularisation
  • Pixellated potential reconstruction
    • perturbing the lens equation
    • linearised models
  • Physical component modeling
    • Clumps of mass in galaxies and clusters
  • Interpreting direct methods as inference shortcuts
  • Optimal basis sets for lens mass modelling

Part 2: and How to get there:

  • General capabilities of *real* telescopes
  • The art of writing an observing proposal
    • Who is the audience?
    • What works? Observing proposals as movie plots
    • The need for simulations, to prove that advanced analyses will work

Slides (PDF)

Questions? Email me at dr.phil.marshall at

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