About the Lab
Michael Unger’s lab works at the intersection of astroparticle physics, cosmic-ray physics, and experimental high-energy physics. The central goal of the research is to understand the origin, composition, and propagation of cosmic rays by combining accelerator measurements, large-scale observatories, and detailed modeling of their interactions with matter, the atmosphere, and magnetic fields.
A major research focus is improving the physical interpretation of cosmic-ray data. This includes precise measurements of hadronic fragmentation cross sections at CERN’s NA61/SHINE experiment, which are essential for modeling cosmic-ray transport in the Galaxy and for interpreting space- and ground-based observations. The lab is also deeply involved in the Pierre Auger Observatory, contributing to detector calibration, atmospheric monitoring, and novel techniques such as using spaceborne lasers to validate detector performance and study aerosols.
Another key theme is the role of magnetic fields, from the local Galactic environment to large-scale structures, in shaping the trajectories of ultra-high-energy cosmic rays. Analytical modeling and forward simulations are used to connect observables like arrival directions and composition to underlying astrophysical sources.
The lab is well suited for students interested in physics with a strong experimental or data-analysis component. Ideal candidates enjoy working with real-world data, simulations, and statistical methods, and are curious about fundamental questions linking particle physics, astrophysics, and Earth’s atmosphere.