Show simple item record

Files in this item


Item metadata

dc.contributor.authorDe Rosa, G.
dc.contributor.authorPeterson, B.M.
dc.contributor.authorEly, J.
dc.contributor.authorKriss, G.A.
dc.contributor.authorCrenshaw, D.M.
dc.contributor.authorHorne, K.
dc.contributor.authorKorista, K.T.
dc.contributor.authorNetzer, H.
dc.contributor.authorPogge, R.W.
dc.contributor.authorArévalo, P.
dc.contributor.authorBarth, A.J.
dc.contributor.authorBentz, M.C.
dc.contributor.authorBrandt, W.N.
dc.contributor.authorBreeveld, A.A.
dc.contributor.authorBrewer, B.J.
dc.contributor.authorDalla Bontá, E.
dc.contributor.authorDe Lorenzo-Caceres Rodriguez, Adriana
dc.contributor.authorDenney, K.D.
dc.contributor.authorDietrich, M.
dc.contributor.authorEdelson, R.
dc.contributor.authorEvans, P.A.
dc.contributor.authorFausnaugh, M.M.
dc.contributor.authorGehrels, N.
dc.contributor.authorGelbord, J.M.
dc.contributor.authorGoad, M.R.
dc.contributor.authorGrier, C.J.
dc.contributor.authorGrupe, D.
dc.contributor.authorHall, P.B.
dc.contributor.authorKaastra, J.
dc.contributor.authorKelly, B.C.
dc.contributor.authorKennea, J.A.
dc.contributor.authorKochanek, C.S.
dc.contributor.authorLira, P.
dc.contributor.authorMathur, S.
dc.contributor.authorMcHardy, I.M.
dc.contributor.authorNousek, J.A.
dc.contributor.authorPancoast, A.
dc.contributor.authorPapadakis, I.
dc.contributor.authorPei, L.
dc.contributor.authorSchimoia, J.S.
dc.contributor.authorSiegel, M.
dc.contributor.authorStarkey, D.
dc.contributor.authorTreu, T.
dc.contributor.authorUttley, P.
dc.contributor.authorVaughan, S.
dc.contributor.authorVestergaard, M.
dc.contributor.authorVillforth, C.
dc.contributor.authorYan, H.
dc.contributor.authorYoung, S.
dc.contributor.authorZu, Y.
dc.identifier.citationDe Rosa , G , Peterson , B M , Ely , J , Kriss , G A , Crenshaw , D M , Horne , K , Korista , K T , Netzer , H , Pogge , R W , Arévalo , P , Barth , A J , Bentz , M C , Brandt , W N , Breeveld , A A , Brewer , B J , Dalla Bontá , E , De Lorenzo-Caceres Rodriguez , A , Denney , K D , Dietrich , M , Edelson , R , Evans , P A , Fausnaugh , M M , Gehrels , N , Gelbord , J M , Goad , M R , Grier , C J , Grupe , D , Hall , P B , Kaastra , J , Kelly , B C , Kennea , J A , Kochanek , C S , Lira , P , Mathur , S , McHardy , I M , Nousek , J A , Pancoast , A , Papadakis , I , Pei , L , Schimoia , J S , Siegel , M , Starkey , D , Treu , T , Uttley , P , Vaughan , S , Vestergaard , M , Villforth , C , Yan , H , Young , S & Zu , Y 2015 , ' Space telescope and optical reverberation mapping project. I. Ultraviolet observations of the Seyfert 1 galaxy NGC 5548 with the cosmic origins spectrograph on Hubble Space Telescope ' , Astrophysical Journal , vol. 806 , no. 1 .
dc.identifier.otherPURE: 204829370
dc.identifier.otherPURE UUID: 80510e90-9af8-4b3d-b552-00ce0f49fb60
dc.identifier.otherScopus: 84935009461
dc.identifier.otherWOS: 000356810300128
dc.description.abstractWe describe the first results from a six-month long reverberation-mapping experiment in the ultraviolet based on 171 observations of the Seyfert 1 galaxy NGC 5548 with the Cosmic Origins Spectrograph on the Hubble Space Telescope. Significant correlated variability is found in the continuum and broad emission lines, with amplitudes ranging from ∼30% to a factor of two in the emission lines and a factor of three in the continuum. The variations of all the strong emission lines lag behind those of the continuum, with He ii λ1640 lagging behind the continuum by ∼2.5 days and Ly λ1215, C iv λ1550, and Si iv λ1400 lagging by ∼5-6 days. The relationship between the continuum and emission lines is complex. In particular, during the second half of the campaign, all emission-line lags increased by a factor of 1.3-2 and differences appear in the detailed structure of the continuum and emission-line light curves. Velocity-resolved cross-correlation analysis shows coherent structure in lag versus line of sight velocity for the emission lines; the high-velocity wings of C iv respond to continuum variations more rapidly than the line core, probably indicating higher velocity broad-line region clouds at smaller distances from the central engine. The velocity-dependent response of Lyα, however, is more complex and will require further analysis.
dc.relation.ispartofAstrophysical Journalen
dc.rights© 2015. The American Astronomical Society. All rights reserved. Reproduced in accordance with the Publisher's author self-archiving policy. Originally published in The Astrophysical Journal:
dc.subjectGalaxies: activeen
dc.subjectGalaxies: individual (NGC 5548en
dc.subjectGalaxies: nucleien
dc.subjectGalaxies: Seyferten
dc.subjectQB Astronomyen
dc.subjectQC Physicsen
dc.titleSpace telescope and optical reverberation mapping project. I. Ultraviolet observations of the Seyfert 1 galaxy NGC 5548 with the cosmic origins spectrograph on Hubble Space Telescopeen
dc.typeJournal articleen
dc.contributor.sponsorScience & Technology Facilities Councilen
dc.contributor.sponsorScience & Technology Facilities Councilen
dc.contributor.sponsorScience & Technology Facilities Councilen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.description.statusPeer revieweden

This item appears in the following Collection(s)

Show simple item record