Striani, E.E.StrianiVercellone, S.S.VercelloneVerrecchia, FrancescoFrancescoVerrecchiaPittori, CarlottaCarlottaPittoriSantolamazza, P.P.SantolamazzaColafrancesco, SergioSergioColafrancescoGiommi, PaoloPaoloGiommi2020-09-172020-09-172009-12-01https://hdl.handle.net/20.500.13025/1308The Astronomer's Telegram, #2326The AGILE Gamma-Ray Imaging Detector (GRID) has been detecting an extraordinary intense gamma-ray emission above 100 MeV from the flat spectrum radio quasar 3C 454.3. Integrating from 2009-12-02 06 30 UT to 2009-12-03 08 30 UT, a quick-look maximum likelihood analysis yields a source flux of about (1800 400)e-8 ph/cm2/sec (E > 100 MeV). This flux value greatly exceeds the value reported by AGILE in ATel #2322, showing a rapid increase (about 80%) of the gamma-ray flux of 3C 454.3 in the last 24 hours.Gamma Ray>GeVRequest for ObservationsAGNQuasarshttp://adsabs.harvard.edu/abs/2009ATel.2326....1S2009ATel.2326....1S