Show simple item record

dc.contributor.authorStirpe, Giovanna M.pt_BR
dc.contributor.authorWinge, Claudiapt_BR
dc.contributor.authorAltieri, B.pt_BR
dc.contributor.authorAlloin, Danielle Mariept_BR
dc.contributor.authorAguero, E.L.pt_BR
dc.contributor.authorAnupama, G.C.pt_BR
dc.contributor.authorAshley, R.pt_BR
dc.contributor.authorBertram, R.pt_BR
dc.contributor.authorCalderon, J.H.pt_BR
dc.contributor.authorCatchpole, R.M.pt_BR
dc.contributor.authorCorradi, R.L.M.pt_BR
dc.contributor.authorCovino, E.pt_BR
dc.contributor.authorDottori, Horacio Albertopt_BR
dc.contributor.authorFeast, M.W.pt_BR
dc.contributor.authorGhosh, K.K.pt_BR
dc.contributor.authorHutton, R. Gilpt_BR
dc.contributor.authorGlass, I.S.pt_BR
dc.contributor.authorGrebel, Eva K.pt_BR
dc.contributor.authorJorda, L.pt_BR
dc.contributor.authorKoen, C.pt_BR
dc.contributor.authorLaney, C.D.pt_BR
dc.contributor.authorMaia, Marcio Antonio Geimbapt_BR
dc.contributor.authorMarang, Fredpt_BR
dc.contributor.authorMayya, Y.D.pt_BR
dc.contributor.authorMorrell, Nidiapt_BR
dc.contributor.authorNakada, Y.pt_BR
dc.contributor.authorPastoriza, Miriani Griseldapt_BR
dc.contributor.authorPati, A.K.pt_BR
dc.contributor.authorPelat, D.pt_BR
dc.contributor.authorPeterson, Bradley M.pt_BR
dc.contributor.authorPrabhu, T.P.pt_BR
dc.contributor.authorRoberts, G.pt_BR
dc.contributor.authorSagar, R.pt_BR
dc.contributor.authorSalamanca, I.pt_BR
dc.contributor.authorSekiguchi, Kazuhiropt_BR
dc.contributor.authorStorchi-Bergmann, Thaisapt_BR
dc.contributor.authorSubramaniam, A.pt_BR
dc.contributor.authorVillada, M.pt_BR
dc.contributor.authorWagner, R.M.pt_BR
dc.contributor.authorWhitelock, P.A.pt_BR
dc.contributor.authorWinkler, Hartmutpt_BR
dc.contributor.authorClavel, J.pt_BR
dc.contributor.authorDietrich, Matthiaspt_BR
dc.contributor.authorKollatschny, W.pt_BR
dc.contributor.authorPerola, G.C.pt_BR
dc.contributor.authorVan Winckel, H.pt_BR
dc.contributor.authorVan Wyk, Francoispt_BR
dc.contributor.authorO'Brien, P.T.pt_BR
dc.contributor.authorRecondo-Gonzalez, M.C.pt_BR
dc.contributor.authorRodriguez-Pascual, P.M.pt_BR
dc.contributor.authorSantos-Lleo, M.pt_BR
dc.date.accessioned2015-01-08T02:13:44Zpt_BR
dc.date.issued1994pt_BR
dc.identifier.issn0004-637Xpt_BR
dc.identifier.urihttp://hdl.handle.net/10183/108847pt_BR
dc.description.abstractThe Seyfert 1 galaxy NGC 3783 was intensely monitored in several bands between 1991 December and 1992 August. This paper presents the results from the ground-based observations in the optical and near-IR bands, which complement the data set formed by the International Ultraviolet Explorer (IUE) spectra, discussed elsewhere. Spectroscopic and photometric data from several observatories were combined in order to obtain well-sampled light curves of the continuum and of Hβ. During the campaign the source underwent significant variability. The light curves of the optical continuum and of Hβ display strong similarities to those obtained with the IV E. The near-IR flux did not vary significantly except for a slight increase at the end of the campaign. The cross-correlation analysis shows that the variations of the optical continuum have a lag of 1 day or Iess with respect to those of the UV continuum, with an uncertainty of ≤4 days. The integrated flux of Hβ varies with a delay of about 8 days. These results confirm that (1) the continuum variations occur simultaneously or with a very small lag across the entire UV-optical range, as in the Seyfert galaxy NGC 5548; and (2) the emission !ines of NGC 3783 respond to ionizing continuum variations with less delay than those of NGC 5548. As observed in NGC 5548, the lag of Hβ with respect to the continuum is greater than those of the high-ionization !ines.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofThe astrophysical journal. Chicago. Vol. 425, no. 2, pt. 1 (Apr. 1994), p. 609-621pt_BR
dc.rightsOpen Accessen
dc.subjectEspectros astronômicospt_BR
dc.subjectGalaxies: activeen
dc.subjectGalaxies: individual (NGC 3783)en
dc.subjectGaláxia NGC 3783pt_BR
dc.subjectGalaxies: nucleien
dc.subjectNucleo galaticopt_BR
dc.subjectGalaxias seyfertpt_BR
dc.subjectGalaxies: photometryen
dc.subjectFotometria astronômicapt_BR
dc.subjectGalaxies: seyferten
dc.subjectObservações astronômicas no visívelpt_BR
dc.titleSteps toward determination of the size and structure of the broad-line region in active galactic nuclei. VI. Variability of NGC 3783 from ground-based datapt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000220109pt_BR
dc.type.originEstrangeiropt_BR


Files in this item

Thumbnail
   

This item is licensed under a Creative Commons License

Show simple item record