Hays, E.E.HaysCutini, SaraSaraCutini2020-09-172020-09-172009-04-01https://hdl.handle.net/20.500.13025/1287The Astronomer's Telegram, #2026The Large Area Telescope (LAT), one of the two instruments on the Fermi Gamma-ray Space Telescope (formerly GLAST, launched June 11, 2008), has observed an increasing gamma-ray flux from a source positionally consistent with B2 1520+31 (RA 15 22 09.99 , Dec +31 44 14.4 , J2000, A. J. Beasley et al. 2002, ApJS, 41, 13) since April 20, 2009.Gamma Ray>GeVRequest for ObservationsAGNQuasarsFermi LAT detection of a GeV flare from blazar B2 1520+31http://adsabs.harvard.edu/abs/2009ATel.2026....1C2009ATel.2026....1C