JWST Validates HST Distance Measurements: Selection of Supernova Subsample Explains Differences in JWST Estimates of Local H₀
The study cross-checks HST Cepheid and Type Ia supernova distance measurements with early JWST subsamples and analyzes why estimates differ across selected samples.
PublishedThe Astrophysical Journal
Citation
Riess, A. G., Scolnic, D., et al. (including T. Wu). “JWST Validates HST Distance Measurements: Selection of Supernova Subsample Explains Differences in JWST Estimates of Local H₀.” ApJ 977, 120 (2024). arXiv:2408.11770.
My contribution
I contributed through distance-ladder work in the Duke Cosmology Group with Prof. Daniel Scolnic. I compared JWST distance measurements across the literature and measured galaxy-dust correlations in SDSS data with SQL and Python.
See the journal and arXiv versions for the full author list and methods.