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.AndersonArévalo, P.P.ArévaloBeatty, T. G.T. G.BeattyBennert, V. N.V. N.BennertBigley, A.A.BigleyBisogni, SusannaSusannaBisogniBorman, 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. M.D. M.CrenshawCroft, S.S.CroftCroxall, K. V.K. V.CroxallBonta, E. DallaE. DallaBontaDeason, A. J.A. J.DeasonDehghanian, M.M.DehghanianLorenzo-Cáceres, A. DeA. DeLorenzo-CáceresDenney, K. D.K. D.DenneyDietrich, M.M.DietrichDone, C.C.DoneEfimova, N. V.N. V.EfimovaEvans, P. A.P. A.EvansFerland, G. J.G. J.FerlandFilippenko, A. V.A. V.FilippenkoFlatland, K.K.FlatlandFox, O. D.O. D.FoxGardner, E.E.GardnerGates, E. L.E. L.GatesGehrels, N.N.GehrelsGeier, S.S.GeierGelbord, J. M.J. M.GelbordGonzalez, L.L.GonzalezGorjian, V.V.GorjianGreene, J. E.J. E.GreeneGrupe, D.D.GrupeGupta, A.A.GuptaHall, P. B.P. B.HallHenderson, C. B.C. B.HendersonHicks, S.S.HicksHolmbeck, E.E.HolmbeckHoloien, T. W.S.T. W.S.HoloienHutchison, T.T.HutchisonIm, M.M.ImJensen, J. J.J. J.JensenJohnson, C. A.C. A.JohnsonJoner, M. D.M. D.JonerJones, J.J.JonesKaspi, S.S.KaspiKelly, P. L.P. L.KellyKennea, J. A.J. A.KenneaKim, M.M.KimKim, S.S.KimKim, S. C.S. C.KimKing, A.A.KingKlimanov, S. A.S. A.KlimanovKorista, K. T.K. 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.Mauerhan2022-06-072022-06-0720210004-637Xhttp://hdl.handle.net/20.500.12386/32222In 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 (Lyα, C iv, He ii, and Hβ) 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 Lyα, C iv, and Hβ 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 Hβ. 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 days gives the inclination i ≈ 45°. The inferred black hole mass is M BH ≈ 7 × 107 M o˙. 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 Lyα 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.STAMPAenArticle10.3847/1538-4357/abce602-s2.0-85101596030https://iopscience.iop.org/article/10.3847/1538-4357/abce60https://api.elsevier.com/content/abstract/scopus_id/851015960302021ApJ...907...76HFIS/05 - ASTRONOMIA E ASTROFISICA