Gammapy analyzes gamma-ray data and creates sky images, spectra and lightcurves, from event lists and instrument response information; it can also determine the position, morphology and spectra of gamma-ray sources. It is used to analyze data from H.E.S.S., Fermi-LAT, and the Cherenkov Telescope Array (CTA).
https://ui.adsabs.harvard.edu/abs/2017ICRC...35..766D and https://doi.org/10.5281/zenodo.5721467; see additional citation information here: https://gammapy.org/acknowledging.html