Dario GasparriniBenoit LottSara CutiniStefano CipriniCavazzuti, ElisabettaElisabettaCavazzuti2020-09-172020-09-172015-08-01https://hdl.handle.net/20.500.13025/4616The third catalog of active galactic nuclei (AGNs) detected by the Fermi Large Area Telescope (3LAC) is presented. It is based on the third catalog (3FGL,cite{3FGL}) of sources detected with a test statistic greater than 25, using the first 4 years of data. The 3LAC includes 1591 AGNs located at high (|b|>10∘) Galactic latitudes (with 28 duplicate associations, thus corresponding to 1563 gamma-ray sources among 2192 sources in the 3FGL catalog), providing 71% more sources with respect to the 2FGL. Various properties, such as gamma-ray fluxes and photon power law spectral indices, redshifts, gamma-ray luminosities, variability, and their correlations are presented and discussed for the different blazar and non-blazar classes.enconference paperhttp://pos.sissa.it/archive/conferences/236/879/ICRC2015_879.pdf57079f6b6c5e1b0ece3cd9b2