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dc.contributor.authorFausnaugh, M. M.
dc.contributor.authorDenney, K. D.
dc.contributor.authorBarth, A. J.
dc.contributor.authorBentz, M. C.
dc.contributor.authorBottorff, M. C.
dc.contributor.authorCarini, M. T.
dc.contributor.authorCroxall, K. V.
dc.contributor.authorDe Rosa, G.
dc.contributor.authorGoad, M. R.
dc.contributor.authorHorne, Keith
dc.contributor.authorJoner, M. D.
dc.contributor.authorKaspi, S.
dc.contributor.authorKim, M.
dc.contributor.authorKlimanov, S. A.
dc.contributor.authorKochanek, C. S.
dc.contributor.authorLeonard, D. C.
dc.contributor.authorNetzer, H.
dc.contributor.authorPeterson, B. M.
dc.contributor.authorSchnülle, K.
dc.contributor.authorSergeev, S. G.
dc.contributor.authorVestergaard, M.
dc.contributor.authorZheng, W. K.
dc.contributor.authorZu, Y.
dc.contributor.authorAnderson, M. D.
dc.contributor.authorArévalo, P.
dc.contributor.authorBazhaw, C.
dc.contributor.authorBorman, G. A.
dc.contributor.authorBoroson, T. A.
dc.contributor.authorBrandt, W. N.
dc.contributor.authorBreeveld, A. A.
dc.contributor.authorBrewer, B. J.
dc.contributor.authorCackett, E. M.
dc.contributor.authorCrenshaw, D. M.
dc.contributor.authorDalla Bontà, E.
dc.contributor.authorDe Lorenzo-Cáceres, A.
dc.contributor.authorDietrich, M.
dc.contributor.authorEdelson, R.
dc.contributor.authorEfimova, N. V.
dc.contributor.authorEly, J.
dc.contributor.authorEvans, P. A.
dc.contributor.authorFilippenko, A. V.
dc.contributor.authorFlatland, K.
dc.contributor.authorGehrels, N.
dc.contributor.authorGeier, S.
dc.contributor.authorGelbord, J. M.
dc.contributor.authorGonzalez, L.
dc.contributor.authorGorjian, V.
dc.contributor.authorGrier, C. J.
dc.contributor.authorGrupe, D.
dc.contributor.authorHall, P. B.
dc.contributor.authorHicks, S.
dc.contributor.authorHorenstein, D.
dc.contributor.authorHutchison, T.
dc.contributor.authorIm, M.
dc.contributor.authorJensen, J. J.
dc.contributor.authorJones, J.
dc.contributor.authorKaastra, J.
dc.contributor.authorKelly, B. C.
dc.contributor.authorKennea, J. A.
dc.contributor.authorKim, S. C.
dc.contributor.authorKorista, K. T.
dc.contributor.authorKriss, G. A.
dc.contributor.authorLee, J. C.
dc.contributor.authorLira, P.
dc.contributor.authorMacInnis, F.
dc.contributor.authorManne-Nicholas, E. R.
dc.contributor.authorMathur, S.
dc.contributor.authorMcHardy, I. M.
dc.contributor.authorMontouri, C.
dc.contributor.authorMusso, R.
dc.contributor.authorNazarov, S. V.
dc.contributor.authorNorris, R. P.
dc.contributor.authorNousek, J. A.
dc.contributor.authorOkhmat, D. N.
dc.contributor.authorPancoast, A.
dc.contributor.authorPapadakis, I.
dc.contributor.authorParks, J. R.
dc.contributor.authorPei, L.
dc.contributor.authorPogge, R. W.
dc.contributor.authorPott, J. -U.
dc.contributor.authorRafter, S. E.
dc.contributor.authorRix, H. -W.
dc.contributor.authorSaylor, D. A.
dc.contributor.authorSchimoia, J. S.
dc.contributor.authorSiegel, M.
dc.contributor.authorSpencer, M.
dc.contributor.authorStarkey, D.
dc.contributor.authorSung, H. I.
dc.contributor.authorTeems, K. G.
dc.contributor.authorTreu, T.
dc.contributor.authorTurner, C. S.
dc.contributor.authorUttley, P.
dc.contributor.authorVillforth, C.
dc.contributor.authorWeiss, Y.
dc.contributor.authorWoo, J. H.
dc.contributor.authorYan, H.
dc.contributor.authorYoung, S.
dc.date.accessioned2016-05-06T15:30:08Z
dc.date.available2016-05-06T15:30:08Z
dc.date.issued2016-04-11
dc.identifier242397326
dc.identifier71085bd5-2f8a-4113-a4ea-d150436c291e
dc.identifier84963955045
dc.identifier000373809000056
dc.identifier.citationFausnaugh , M M , Denney , K D , Barth , A J , Bentz , M C , Bottorff , M C , Carini , M T , Croxall , K V , De Rosa , G , Goad , M R , Horne , K , Joner , M D , Kaspi , S , Kim , M , Klimanov , S A , Kochanek , C S , Leonard , D C , Netzer , H , Peterson , B M , Schnülle , K , Sergeev , S G , Vestergaard , M , Zheng , W K , Zu , Y , Anderson , M D , Arévalo , P , Bazhaw , C , Borman , G A , Boroson , T A , Brandt , W N , Breeveld , A A , Brewer , B J , Cackett , E M , Crenshaw , D M , Dalla Bontà , E , De Lorenzo-Cáceres , A , Dietrich , M , Edelson , R , Efimova , N V , Ely , J , Evans , P A , Filippenko , A V , Flatland , K , Gehrels , N , Geier , S , Gelbord , J M , Gonzalez , L , Gorjian , V , Grier , C J , Grupe , D , Hall , P B , Hicks , S , Horenstein , D , Hutchison , T , Im , M , Jensen , J J , Jones , J , Kaastra , J , Kelly , B C , Kennea , J A , Kim , S C , Korista , K T , Kriss , G A , Lee , J C , Lira , P , MacInnis , F , Manne-Nicholas , E R , Mathur , S , McHardy , I M , Montouri , C , Musso , R , Nazarov , S V , Norris , R P , Nousek , J A , Okhmat , D N , Pancoast , A , Papadakis , I , Parks , J R , Pei , L , Pogge , R W , Pott , J -U , Rafter , S E , Rix , H -W , Saylor , D A , Schimoia , J S , Siegel , M , Spencer , M , Starkey , D , Sung , H I , Teems , K G , Treu , T , Turner , C S , Uttley , P , Villforth , C , Weiss , Y , Woo , J H , Yan , H & Young , S 2016 , ' Space Telescope and Optical Reverberation Mapping Project. III. Optical continuum emission and broadband time delays in NGC 5548 ' , Astrophysical Journal , vol. 821 , no. 1 , 56 , pp. 1-25 . https://doi.org/10.3847/0004-637X/821/1/56en
dc.identifier.issn0004-637X
dc.identifier.urihttps://hdl.handle.net/10023/8746
dc.description.abstractWe present ground-based optical photometric monitoring data for NGC 5548, part of an extended multiwavelength reverberation mapping campaign. The light curves have nearly daily cadence from 2014 January to July in nine filters (BVRI and ugriz). Combined with ultraviolet data from the Hubble Space Telescope and Swift, we confirm significant time delays between the continuum bands as a function of wavelength, extending the wavelength coverage from 1158 Å to the z band (∼9160 Å). We find that the lags at wavelengths longer than the V band are equal to or greater than the lags of high-ionization-state emission lines (such as He ii and λ1640 and λ4686), suggesting that the continuum-emitting source is of a physical size comparable to the inner broad-line region (BLR). The trend of lag with wavelength is broadly consistent with the prediction for continuum reprocessing by an accretion disk with τ ∝ λ4/3. However, the lags also imply a disk radius that is 3 times larger than the prediction from standard thin-disk theory, assuming that the bolometric luminosity is 10% of the Eddington luminosity (L = 0.1LEdd). Using optical spectra from the Large Binocular Telescope, we estimate the bias of the interband continuum lags due to BLR emission observed in the filters. We find that the bias for filters with high levels of BLR contamination (∼20%) can be important for the shortest continuum lags and likely has a significant impact on the u and U bands owing to Balmer continuum emission.
dc.format.extent25
dc.format.extent1850430
dc.language.isoeng
dc.relation.ispartofAstrophysical Journalen
dc.subjectGalaxies: activeen
dc.subjectGalaxies: individual (NGC 5548)en
dc.subjectGalaxies: nucleien
dc.subjectGalaxies: Seyferten
dc.subjectQB Astronomyen
dc.subjectQC Physicsen
dc.subjectSpace and Planetary Scienceen
dc.subjectAstronomy and Astrophysicsen
dc.subjectNDASen
dc.subjectBDCen
dc.subject.lccQBen
dc.subject.lccQCen
dc.titleSpace Telescope and Optical Reverberation Mapping Project. III. Optical continuum emission and broadband time delays in NGC 5548en
dc.typeJournal articleen
dc.contributor.sponsorScience & Technology Facilities Councilen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.identifier.doi10.3847/0004-637X/821/1/56
dc.description.statusPeer revieweden
dc.identifier.grantnumberST/M001296/1en


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