A data-driven evaluation of Fermi-LAT extrapolation schemes to the VHE regime.
Journal: Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021)
Year: 2021

After 10 years of operations of the Large Area Telescope (LAT), a high-energy pair-creation telescope onboard the Fermi satellite, the Fermi Collaboration has produced two major catalogs: the 4FGL and the 3FHL. These catalogs represent the best sample of potential very high energy (VHE) emitters that may be studied by Imaging Atmospheric Cherenkov Telescopes (IACTs). Several methods are used to extrapolate the Fermi-LAT spectra to TeV energies, generally using simple analytical functions. The re