Professor Funk's research interests focus on high energy astrophysics with instruments spanning the energy range from keV X-rays to the highest-energy gamma-rays detected from any astrophysical object with Cherenkov telescopes at up to 100 TeV. A strong focus of his research is connected to the upcoming Gamma-ray Large Area Space Telescope (GLAST-LAT) mission. Major areas of his research in the field of gamma-ray astronomy include: the study of gamma-ray emission from Galactic Particle accelerators such as Supernova remnants or Pulsar Wind Nebulae; understanding particle acceleration in astrophysical objects and the origin of Cosmic rays; identification strategies for Gamma-ray emitters; and the connection between GeV sources and TeV sources.
Prof. Funk is also involved in the instrumentation, design and planning of future international Gamma-ray instruments, and is an associated member of the High Energy Spectroscopic System (H.E.S.S.) collaboration.