W. D'Arcy Kenworthy

I am a Postdoctoral Researcher at the Oskar Klein Centre at Stockholm University, working with Ariel Goobar. My research focuses on statistical modeling, large-scale data analysis, and systematic uncertainty correction in cosmological measurements.

I recently contributed to the Zwicky Transient Facility, helping release the largest-to-date sample of cosmological supernovae. My work involves developing predictive models for time-series data, analyzing large datasets to extract systematic patterns, and collaborating with international teams on data processing pipelines and uncertainty propagation methods.

I completed my PhD in Astronomy at Johns Hopkins University under the supervision of Adam Riess (Nobel Laureate), where I developed the SALT3 statistical modeling framework for analyzing Type Ia supernova light curves. As a member of the SH0ES collaboration, I worked on increasing the precision of the measurement of $H_0$ and validating the SH0ES measurements through alternative metrics. My dissertation, Tightening the Distance Ladder, was awarded the Rodger Doxsey Travel Prize by the American Astronomical Society.

Prior to Johns Hopkins, I studied at the University of Cambridge, earning a BA in Natural Sciences (Physics) and an MSc in Astrophysics (Part III). I’m now looking to exercise my skills outside an academic context; feel free to reach out to me via email or Linkedin to discuss opportunities!