Josiah Purdum

California Institute of Technology

Papers

2

Total Citations

9

H-Index

2

About

Josiah Purdum is an emerging leader in time-domain astrophysics, specializing in the classification of supernovae and the electromagnetic follow-up of gravitational-wave events. His work bridges cutting-edge machine learning and multi-wavelength observational astronomy. Purdum’s most impactful contribution is the development of **CCSNscore**, a multi-input deep learning tool that automates the classification of core-collapse supernovae using spectra from the SED-machine instrument. This tool addresses a critical bottleneck in the era of large-scale surveys like the Zwicky Transient Facility (ZTF), where thousands of transient candidates require rapid, accurate typing. With 5 citations since its 2025 publication, CCSNscore is already proving essential for efficient transient identification. In parallel, Purdum has advanced gravitational-wave astrophysics through his work on the **WINTER** (Wide-Field Infrared Transient Explorer) project. His follow-up observations of the gravitational-wave event S250206dm demonstrate the vital role of near-infrared searches in detecting kilonovae—the optical counterparts to neutron star mergers. This work, garnering 4 citations, showcases his skill in coordinating rapid-response observations. Purdum’s research is at the forefront of using AI and infrared astronomy to unlock the dynamic universe, making him a key figure to watch in the coming years.

Research Focus

Key Achievements

2
H-Index
2
Papers
9
Total Citations
5
Avg Citations/Paper
🏆 Most Cited Paper
CCSNscore: A Multi-input Deep Learning Tool for Classification of Core-collapse Supernovae Using SED-machine Spectra
5 citations · 2025
📈 Most Prolific Year: 2025 (2 Papers)
🤝 Key Collaborators: 29
🏛 Institutions: California Institute of Technology

Top Papers

  1. 1
  2. 2

Key Collaborators

Contact & Links

Available for collaboration
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