Goldstein, A.A.GoldsteinVeres, P.P.VeresBurns, E.E.BurnsBlackburn, L.L.BlackburnBriggs, M. S.M. S.BriggsChristensen, N.N.ChristensenCleveland, W. H.W. H.ClevelandConnaughton, V.V.ConnaughtonDal Canton, T.T.Dal CantonHamburg, R.R.HamburgHui, C. M.C. M.HuiJenke, P. A.P. A.JenkeKocevski, D.D.KocevskiPreece, R. D.R. D.PreeceSiellez, K.K.SiellezVeitch, J.J.VeitchWilson-Hodge, C. A.C. A.Wilson-HodgeBhat, N.N.BhatBissaldi, E.E.BissaldiGibby, M. H.M. H.GibbyGiles, M. M.M. M.Gilesvon Kienlin, A.A.von KienlinMailyan, B.B.MailyanMeegan, C. A.C. A.MeeganPaciesas, W. S.W. S.PaciesasRoberts, O. J.O. J.RobertsStanbro, M.M.Stanbro(Fermi-LAT CollaborationAckermann, M.M.AckermannAjello, M.M.AjelloAtwood, W. B.W. B.AtwoodBaldini, L.L.BaldiniBarbiellini, G.G.BarbielliniBastieri, D.D.BastieriBellazzini, R.R.BellazziniBlandford, R. D.R. D.BlandfordBloom, E. D.E. D.BloomBonino, R.R.BoninoBottacini, E.E.BottaciniBrandt, T. J.T. J.BrandtBregeon, J.J.BregeonBruel, P.P.BruelBuehler, R.R.BuehlerBurnett, T. H.T. H.BurnettBuson, S.S.BusonCameron, R. A.R. A.CameronCARAVEO, PATRIZIAPATRIZIACARAVEO0000-0003-2478-8018Cavazzuti, E.E.CavazzutiCecchi, C.C.CecchiCharles, E.E.CharlesChekhtman, A.A.ChekhtmanChiang, J.J.ChiangChiaro, G.G.ChiaroCiprini, S.S.CipriniCominsky, L. R.L. R.CominskyCostantin, D.D.CostantinCutini, S.S.CutiniD'AMMANDO, FILIPPOFILIPPOD'AMMANDO0000-0001-7618-7527de Palma, F.F.de PalmaDesiante, R.R.DesianteDigel, S. W.S. W.DigelDi Lalla, N.N.Di LallaDI MAURO, Maria GiuseppinaMaria GiuseppinaDI MAURODi Venere, L.L.Di VenereFavuzzi, C.C.FavuzziFerrara, E. C.E. C.FerraraFranckowiak, A.A.FranckowiakFukazawa, Y.Y.FukazawaFunk, S.S.FunkFusco, P.P.FuscoGargano, F.F.GarganoGasparrini, D.D.GasparriniGiglietto, N.N.GigliettoGiomi, M.M.GiomiGiordano, F.F.GiordanoGIROLETTI, MARCELLOMARCELLOGIROLETTI0000-0002-8657-8852Glanzman, T.T.GlanzmanGreen, D.D.GreenGrenier, I. A.I. A.GrenierGrove, J. E.J. E.GroveGuillemot, L.L.GuillemotGuiriec, S.S.GuiriecHarding, A. K.A. K.HardingHays, E.E.HaysHoran, D.D.HoranJóhannesson, G.G.JóhannessonKamae, T.T.KamaeKensei, S.S.KenseiKuss, M.M.KussLa Mura, G.G.La MuraLarsson, S.S.LarssonLatronico, L.L.LatronicoLi, J.J.LiLongo, F.F.LongoLoparco, F.F.LoparcoLovellette, M. N.M. N.LovelletteLubrano, P.P.LubranoMagill, J. D.J. D.MagillMaldera, S.S.MalderaManfreda, A.A.ManfredaMazziotta, M. N.M. N.MazziottaMcEnery, J. E.J. E.McEneryMeyer, M.M.MeyerMichelson, P. F.P. F.MichelsonMizuno, T.T.MizunoMoiseev, A. A.A. A.MoiseevMonzani, M. E.M. E.MonzaniMoretti, E.E.MorettiMorselli, A.A.MorselliMoskalenko, I. V.I. V.MoskalenkoNegro, M.M.NegroNuss, E.E.NussOhsugi, T.T.OhsugiOmodei, N.N.OmodeiORIENTI, MonicaMonicaORIENTI0000-0003-4470-7094Orlando, E.E.OrlandoOrmes, J. F.J. F.OrmesPalatiello, M.M.PalatielloPaliya, V. S.V. S.PaliyaPaneque, D.D.PanequePerkins, J. S.J. S.PerkinsPERSIC, MassimoMassimoPERSIC0000-0003-1853-4900Pesce-Rollins, M.M.Pesce-RollinsPetrosian, V.V.PetrosianPiron, F.F.PironPorter, T. A.T. A.PorterPrincipe, G.G.Principe0000-0003-0406-7387Racusin, J. L.J. L.RacusinRainò, S.S.RainòRando, R.R.RandoRazzano, M.M.RazzanoRazzaque, S.S.RazzaqueReimer, A.A.ReimerReimer, O.O.ReimerReposeur, T.T.ReposeurSaz Parkinson, P. M.P. M.Saz ParkinsonSgrò, C.C.SgròSiskind, E. J.E. J.SiskindSpada, F.F.SpadaSpandre, G.G.SpandreSpinelli, P.P.SpinelliSuson, D. J.D. J.SusonThayer, J. G.J. G.ThayerThayer, J. B.J. B.ThayerTorres, D. F.D. F.TorresTroja, E.E.TrojaVianello, G.G.VianelloWood, K.K.WoodWood, M.M.Wood2020-08-202020-08-2020172041-8205http://hdl.handle.net/20.500.12386/26729We present the Fermi Gamma-ray Burst Monitor (GBM) and Large Area Telescope (LAT) observations of the LIGO binary black hole merger (BBH) event GW170104. No candidate electromagnetic counterpart was detected by either GBM or LAT. A detailed analysis of the GBM and LAT data over timescales from seconds to days covering the Laser Interferometer Gravitational-wave Observatory (LIGO) localization region is presented. The resulting flux upper bound from the GBM is (5.2-9.4) × 10<SUP>-7</SUP> erg cm<SUP>-2</SUP> s<SUP>-1</SUP> in the 10-1000 keV range and from the LAT is (0.2-90) × 10<SUP>-9</SUP> erg cm<SUP>-2</SUP> s<SUP>-1</SUP> in the 0.1-1 GeV range. We also describe the improvements to our automated pipelines and analysis techniques for searching for and characterizing the potential electromagnetic counterparts for future gravitational-wave events from Advanced LIGO/Virgo.STAMPAengFermi Observations of the LIGO Event GW170104Article10.3847/2041-8213/aa83192-s2.0-85028915870000408509200003https://iopscience.iop.org/article/10.3847/2041-8213/aa83192017ApJ...846L...5GFIS/05 - ASTRONOMIA E ASTROFISICAScienze Fisiche Settori ERC (ERC) di riferimento::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation