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Miranda Gorsuch

University of Wisconsin - Madison


Biography and Interests

I am a third year graduate student working in the Observational Cosmology group at University of Wisconsin - Madison.


I am contributing to the development and testing of novel algorithms for combining multiple optical/near-IR pixel-level images in the same region of the sky to make robust, high signal-to-noise measurements of faint galaxies for weak gravitational lensing and galaxy clustering probes of dark energy with the Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST). Specifically, I am working on the implementation of the cell-based (or “edgeless”) image coaddition algorithm in the LSST Science Pipelines. Cell-based coadds are substantially more computationally efficient when working with large numbers of overlapping images and enable more robust modeling of the point-spread function (PSF). The approach will be tested and optimized for computational and science performance on increasingly large datasets until it is validated for deployment on survey-scale LSST data release processing.

Recent Accomplishments

  • Developed collection of testing analyses for cell-based coadds (in progress) GitHub link
  • Developed an introductory notebook for cell-based coadds (in progress) GitHub link
  • Aided in testing image warping and coaddition tasks within LSST Science Pipelines


  • Keith Bechtol (Univeristy of Wisconsin - Madison, advisor)
  • Alex Drlica-Wagner (Fermilab)

Traineeship dates