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Usage¶

To use lenstronomy in a project:

import lenstronomy

Getting started¶

The starting guide jupyter notebook leads through the main modules and design features of lenstronomy. The modular design of lenstronomy allows the user to directly access a lot of tools and each module can also be used as stand-alone packages.

Example notebooks¶

We have made an extension module available at https://github.com/sibirrer/lenstronomy_extensions. You can find simple examle notebooks for various cases. The latest versions of the notebooks should be compatible with the recent pip version of lenstronomy.

  • Units, coordinate system and parameter definitions in lenstronomy
  • FITS handling and extracting needed information from the data prior to modeling
  • Modeling a simple Einstein ring
  • Quadrupoly lensed quasar modelling
  • Double lensed quasar modelling
  • Time-delay cosmography
  • Source reconstruction and deconvolution with Shapelets
  • Solving the lens equation
  • Multi-band fitting
  • Measuring cosmic shear with Einstein rings
  • Fitting of galaxy light profiles, like e.g. GALFIT
  • Quasar-host galaxy decomposition
  • Hiding and seeking a single subclump
  • Mock generation of realistic images with substructure in the lens
  • Mock simulation API with multi color models
  • Catalogue data modeling of image positions, flux ratios and time delays
  • Example of numerical ray-tracing and convolution options
  • Simulated lenses with populations generated by SkyPy

Table of Contents

  • Usage
    • Getting started
    • Example notebooks

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