Horne, KeithKeithHorneRosa, G. DeG. DeRosaPeterson, B. M.B. M.PetersonBarth, A. J.A. J.BarthEly, J.J.ElyFausnaugh, M. M.M. M.FausnaughKriss, G. A.G. A.KrissPei, L.L.PeiBentz, M. C.M. C.BentzCackett, E. M.E. M.CackettEdelson, R.R.EdelsonEracleous, M.M.EracleousGoad, M. R.M. R.GoadGrier, C. J.C. J.GrierKaastra, J.J.KaastraKochanek, C. S.C. S.KochanekKrongold, Y.Y.KrongoldMathur, S.S.MathurNetzer, H.H.NetzerProga, D.D.ProgaTejos, N.N.TejosVestergaard, M.M.VestergaardVillforth, C.C.VillforthAdams, S. M.S. M.AdamsAnderson, M. D.M. D.AndersonArevalo, P.P.ArevaloBeatty, T. G.T. G.BeattyBennert, V. N.V. N.BennertBigley, A.A.BigleyBisogni, S.S.BisogniBorman, G. A.G. A.BormanBoroson, T. A.T. A.BorosonBottorff, M. C.M. C.BottorffBrandt, W. N.W. N.BrandtBreeveld, A. A.A. A.BreeveldBrotherton, M.M.BrothertonBrown, J. E.J. E.BrownBrown, J. S.J. S.BrownCanalizo, G.G.CanalizoCarini, M. T.M. T.CariniClubb, K. I.K. I.ClubbComerford, J. M.J. M.ComerfordCorsini, E. M.E. M.CorsiniCrenshaw, D. 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T.KoristaLau, M. W.M. W.LauLee, J. C.J. C.LeeLeonard, D. C.D. C.LeonardLi, MiaoMiaoLiLira, P.P.LiraLochhaas, C.C.LochhaasMa, ZhiyuanZhiyuanMaMacInnis, F.F.MacInnisMalkan, M. A.M. A.MalkanManne-Nicholas, E. R.E. R.Manne-NicholasMauerhan, J. C.J. C.MauerhanMcGurk, R.R.McGurkMcHardy, I. M.I. M.McHardyMontuori, C.C.MontuoriMorelli, L.L.MorelliMosquera, A.A.MosqueraMudd, D.D.MuddMuller-Sanchez, F.F.Muller-SanchezNazarov, S. V.S. V.NazarovNorris, R. P.R. P.NorrisNousek, J. A.J. A.NousekNguyen, M. L.M. L.NguyenOchner, P.P.OchnerOkhmat, D. N.D. N.OkhmatPancoast, A.A.PancoastPapadakis, I.I.PapadakisParks, J. R.J. R.ParksPenny, M. T.M. T.PennyPizzella, A.A.PizzellaPogge, R. W.R. W.PoggePoleski, R.R.PoleskiPott, J. -U.J. -U.PottRafter, S. E.S. E.RafterRix, H. -W.H. -W.RixRunnoe, J.J.RunnoeSaylor, D. A.D. A.SaylorSchimoia, J. S.J. S.SchimoiaSchnuelle, K.K.SchnuelleScott, B.B.ScottSergeev, S. G.S. G.SergeevShappee, B. J.B. J.ShappeeShivvers, I.I.ShivversSiegel, M.M.SiegelSimonian, G. V.G. V.SimonianSiviero, A.A.SivieroSkielboe, A.A.SkielboeSomers, G.G.SomersSpencer, M.M.SpencerStarkey, D.D.StarkeyStevens, D. J.D. J.StevensSung, H. -I.H. -I.SungTayar, J.J.TayarTreu, T.T.TreuTurner, C. S.C. S.TurnerUttley, P.P.UttleyVan Saders, J.J.Van SadersVican, L.L.VicanVillanueva, S.S.VillanuevaWeiss, Y.Y.WeissWoo, J. -H.J. -H.WooYan, H.H.YanYoung, S.S.YoungYuk, H.H.YukZheng, W.W.ZhengZhu, W.W.ZhuZu, Y.Y.Zu2025-12-302025-12-3020211538-4357https://hdl.handle.net/20.500.12740/24179In this contribution, we achieve the primary goal of the active galactic nucleus (AGN) STORM campaign by recovering velocity-delay maps for the prominent broad emission lines (Ly alpha, C IV, He II, and H beta) in the spectrum of NGC 5548. These are the most detailed velocity-delay maps ever obtained for an AGN, providing unprecedented information on the geometry, ionization structure, and kinematics of the broad-line region. Virial envelopes enclosing the emission-line responses show that the reverberating gas is bound to the black hole. A stratified ionization structure is evident. The He ii response inside 5-10 lt-day has a broad single-peaked velocity profile. The Ly alpha, C IV, and H beta responses extend from inside 2 to outside 20 lt-day, with double peaks at 2500 km s(-1) in the 10-20 lt-day delay range. An incomplete ellipse in the velocity-delay plane is evident in H beta. We interpret the maps in terms of a Keplerian disk with a well-defined outer rim at R = 20 lt-day. The far-side response is weaker than that from the near side. The line-center delay tau = (R/c)(1 - sin i) approximate to 5 days gives the inclination i approximate to 45 degrees. The inferred black hole mass is (BH) 7 x 10(7) M-circle dot. In addition to reverberations, the fit residuals confirm that emission-line fluxes are depressed during the BLR Holiday identified in previous work. Moreover, a helical Barber-Pole pattern, with stripes moving from red to blue across the C IV and Ly alpha line profiles, suggests azimuthal structure rotating with a 2 yr period that may represent precession or orbital motion of inner-disk structures casting shadows on the emission-line region farther out.Acceso AbiertoTERM PROFILE VARIABILITYACTIVE GALACTIC NUCLEUSRADIATION PRESSUREMASSCONTINUUMREGIONSDISChttp://dx.doi.org/10.3847/1538-4357/abce60