Using gravitational lensing to constrain the distribution of dark matter is by now a well-established tool in astrophysics. Simona Vegetti, however, uses it for a very specific purpose: using high-resolution images of strong gravitational lenses, she tries to find and constrain the properties of small satellite galaxies in the distant universe. Recently she has been awarded a Max Planck Junior Research Group position at MPA, which will allow her much more extensive studies using this technique with her own small group.
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