J/ApJ/763/L36ivo://CDS.VizieR/J/ApJ/763/L36doi:10.26093/cds/vizier.17639036CDSLeon-Tavares J.Chavushyan V.Patino-Alvarez V.Valtaoja E.,Arshakian T.G.Popovic L.C.Tornikoski M.Lobanov A.Carraminana A.,Carrasco L.Lahteenmaki A.2017-06-20T13:17:17Z2014-11-05T12:41:54ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frspectroscopyultraviolet-astronomyquasarsWe report the detection of a statistically significant flare-like event in the MgII {lambda}2800 emission line of 3C 454.3 during the outburst of autumn 2010. The highest levels of emission line flux recorded over the monitoring period (2008-2011) coincide with a superluminal jet component traversing through the radio core. This finding crucially links the broad emission line fluctuations to the non-thermal continuum emission produced by relativistically moving material in the jet and hence to the presence of broad-line region clouds surrounding the radio core. If the radio core were located at several parsecs from the central black hole, then our results would suggest the presence of broad-line region material outside the inner parsec where the canonical broad-line region is envisaged to be located. We briefly discuss the implications of broad emission line material ionized by non-thermal continuum in the context of virial black hole mass estimates and gamma-ray production mechanisms.2013ApJ...763L..36Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/763/L36CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/other/RMxAA/48.9 : MOJAVE/2cm AGN sample spectros. atlas (Torrealba+, 2012)J/A+A/545/A113 : MOJAVE IX. Core shift effects (Pushkarev+, 2012)J/ApJ/754/23 : Blazar mm + {gamma}-ray luminosities (Leon-Tavares+, 2012)J/ApJ/712/405 : Multiwavelength obs. of 3C 454.3 III. (Vercellone+, 2010)J/AJ/134/799 : Multiwaveband polarimetry of 15 AGN (Jorstad+, 2007)J/A+A/450/39 : BVRI photometry of 8 red blazars (Gu+, 2006)J/MNRAS/367/1261 : Redshift survey in 15 quasar fields (Morris+, 2006)J/ApJS/143/257 : AGN emission line properties (Kuraszkiewicz+, 2002)J/A+AS/132/305 : Extragal. radio sources at 22, 37 & 87GHz (Terasranta+ 1998)J/A+AS/122/271 : mm-monitoring of radio sources IV. (Reuter+ 1997)http://james.as.arizona.edu/~psmith/Fermi/ : Ground-based Observational Supporthttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/763/L36https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/763/L36http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/763/L36https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/763/L36https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/763/L36http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/763/L36GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tap6.621484330165357e-19 6.621484330165357e-19UVdefaultJ/ApJ/763/L36/table1FeII and MgII flux measurements in 2008-2011recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJDJulian Date of observation; JD-2450000dtime.epochdoubleMgII[1.05/1.82] Flux of MgII 280nm line (1)1e-16W.m**-2phot.flux;em.UV.200-300nm;spect.linefloate_MgII[0.01/0.2] Error in MgII (1)1e-16W.m**-2stat.errorfloatFeII[1.3/8] Flux of FeII (1)1e-16W.m**-2phot.fluxfloate_FeIIError in FeII (1)1e-16W.m**-2stat.errorfloatUVcont[0.5/8] Flux of UV continuum at 300nm (2)1e-16W.m**-2.nm**-1phot.fluxfloate_UVcontError in UV3000 (2)1e-16W.m**-2.nm**-1stat.errorfloat