W. D'Arcy Kenworthy

I am a data scientist and cosmologist with expertise in statistical modeling, large-scale data analysis, and systematic uncertainty correction. After a year spent traveling, 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!

From 2022 to 2025 I was a Postdoctoral Researcher at the Oskar Klein Centre at Stockholm University, working with Ariel Goobar. As a member of the Zwicky Transient Facility collaboration, I helped release the largest-to-date sample of cosmological supernovae. My work involved 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).