Profile picture for Athol J Kemball

Contact Information

203 Astronomy Building, MC-221
1002 W. Green St.
Urbana, IL 61801

Professor

Research Description

The exponential growth in contemporary advanced computing capability has profoundly influenced approaches to leading-edge scientific questions in data-and compute-intensive science and engineering. For example, the power of current extreme-scale computer systems allows telescopes to acquire and process data at an unprecedented rate, bringing transformative change to the practice of observational astronomy. I focus on the interdisciplinary use of advanced  computing in computational science and engineering including observational astronomy, in order to understand key astrophysical questions for which new avenues of scientific inquiry are enabled by these advances. I am a member of the Center for Extreme-Scale Computation at NCSA/IACAT and a faculty affiliate of the Computational Science and Engineering program at UIUC.

My main research areas lie at the intersection of advanced computing and astrophysics and include the following specific focus areas in astronomy: a) the theory of interferometry; b) astrophysical masers; c) late-type, evolved stars; and d) gravitational lensing.

Education

Ph. D. (Physics) 1993

Additional Campus Affiliations

Professor, Astronomy
Professor, National Center for Supercomputing Applications (NCSA)

Recent Publications

Taaki, J. S., Kamalabadi, F., Kemball, A. J., Corrales, L., & Hero, A. O. (2026). Efficient Exoplanet Imaging Simulations of the Habitable Worlds Observatory. Astronomical Journal, 171(1), Article 55. https://doi.org/10.3847/1538-3881/ae22f1

Simelane, S., Deane, R., Kemball, A., Botha, R., Julie, R., Molamu, K., Tiplady, A., & de Witt, A. (2025). Evaluation of South African Candidate Sites for an Expanded Event Horizon Telescope. URSI Radio Science Letters, 6, 18. https://doi.org/10.46620/24-0018

Taaki, J. S., Kemball, A. J., & Kamalabadi, F. (2025). A Search for Exoplanet Candidates in TESS 2 minute Light Curves Using Joint Bayesian Detection. Astronomical Journal, 170(1), Article 14. https://doi.org/10.3847/1538-3881/add15a

Taaki, J., Kemball, A., & Kamalabadi, F. (2025). PyStarshade: Simulating High-Contrast Imaging of Exoplanets with Starshades. Journal of Open Source Software. https://doi.org/10.21105/joss.07917

Taaki, J. S., Kemball, A. J., & Kamalabadi, F. (2024). Robust Detrending of Spatially Correlated Systematics in Kepler Light Curves Using Low-rank Methods. Astronomical Journal, 167(2), Article 60. https://doi.org/10.3847/1538-3881/ad1110

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