J/ApJ/804/7ivo://CDS.VizieR/J/ApJ/804/7doi:10.26093/cds/vizier.18040007CDSIsler J.C.Urry C.M.Bailyn C.Smith P.S.Coppi P.Brady M.,MacPherson E.Hasan I.Buxton M.2017-10-16T14:58:27Z2015-09-07T11:49:41ZCDS support team

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

cds-question@unistra.frinfrared-photometryvisible-astronomybroad-band-photometryspectroscopyquasarsWe present multi-epoch optical spectroscopy of seven southern Fermi-monitored blazars from 2008 to 2013 using the Small and Medium Aperture Research Telescope System (SMARTS), with supplemental spectroscopy and polarization data from the Steward Observatory. We find that the emission lines are much less variable than the continuum; four of seven blazars had no detectable emission line variability over the 5 yr observation period. This is consistent with photoionization primarily by an accretion disk, allowing us to use the lines as a probe of disk activity. Comparing optical emission line flux with Fermi {gamma}-ray flux and optical polarized flux, we investigate whether relativistic jet variability is related to the accretion flow. In general, we see no such dependence, suggesting that the jet variability is likely caused by internal processes like turbulence or shock acceleration rather than a variable accretion rate. However, three sources showed statistically significant emission line flares in close temporal proximity to very large Fermi {gamma}-ray flares. While we do not have sufficient emission line data to quantitatively assess their correlation with the {gamma}-ray flux, it appears that in some cases the jet might provide additional photoionizing flux to the broad-line region (BLR), which implies that some {gamma}-rays are produced within the BLR, at least for these large flares.2015ApJ...804....7Ihttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/804/7CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/562/A79 : Variability of 7 blazars in six bands (Sandrinelli+, 2014)J/MNRAS/441/1899 : Fermi bright blazars (Fuhrmann+, 2014)J/MNRAS/439/690 : Optical/{gamma}-ray variability in blazars (Hovatta+, 2014)J/MNRAS/438/3058 : 15GHz variability of {gamma}-ray blazars (Richards+, 2014)J/ApJ/763/L36 : MgII & FeII flux of blazar 3C 454.3 (Leon-Tavares+, 2013)J/ApJS/199/31 : Fermi LAT second source catalog (2FGL) (Nolan+, 2012)J/ApJS/188/405 : Fermi-LAT first source catalog (1FGL) (Abdo+, 2010)J/ApJ/722/520 : Gamma-ray light curves of Fermi blazars (Abdo+, 2010)J/ApJ/700/597 : FERMI LAT detected blazars (Abdo+, 2009)http://fermi.gsfc.nasa.gov/ssc/data/access/ : Fermi Science Support Centerhttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/804/7https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/804/7http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/804/7https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/804/7https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/804/7http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/804/7GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/804/7/table1 (SMARTS Multi-epoch Optical Spectroscopy Atlas (SaMOSA) blazars and lines identifications)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/804/7/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/804/7/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/804/7/table1?GETtext/xml+votable180.050000true32.6925208-51.01717780.0055555555555555566/20099 21121 34517 35079 44908 45178 460551.5062136169708525e-19 4.920466254354166e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/804/7?format=asciiOpticalInfrareddefaultJ/ApJ/804/7/table1SMARTS Multi-epoch Optical Spectroscopy Atlas (SaMOSA) blazars and lines identificationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDSource identifiermeta.id;meta.maincharprimary2FGL2FGL identifiermeta.idcharz[0.3/1.5] Redshiftsrc.redshiftfloatW1[Mg II] W1 line identification ("MgII")meta.id;spect.lineW2W2 line identification ("C III]", "H{gamma}" or "Si III]")meta.id;spect.lineW3W3 line identification ("C IV" or "H{beta}")meta.id;spect.lineW4W4 line identification ("H{alpha}")meta.id;spect.lineNobsNumber of observations (in table 2) for this blazarmeta.numberintnullableLCLight curvesmeta.ref.urlcharWPWidth variations plotmeta.id;spect.linecharSimbadSimbad column added by the CDSmeta.ref.urlcharNEDSimbad column added by the CDSmeta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/ApJ/804/7/table2SaMOSA optical photometry and spectroscopy logrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDSource identifiermeta.id;meta.maincharDateUT date of the observationtime.epoch;obsnullableObs[t] Observational flag (1)meta.id;instr.obstycharMJDModified Julian Date of observationdtime.epochdoubleBmag[15.6/18.9]? B band magnitude (on Landoolt)magphot.mag;em.opt.Bfloatnullablee_Bmag[0.004/0.3]? Uncertainty in Bmagmagstat.error;phot.mag;em.opt.BfloatnullableVmag[15.1/18.5]? V band magnitude (on Landoolt)magphot.mag;em.opt.Vfloatnullablee_Vmag[0.004/0.3]? Uncertainty in Vmagmagstat.error;phot.mag;em.opt.VfloatnullableRmag[14.6/18]? R band magnitude (on Landoolt)magphot.mag;em.opt.Rfloatnullablee_Rmag[0.004/0.2]? Uncertainty in Rmagmagstat.error;phot.mag;em.opt.RfloatnullableJmag[13/16.6]? J band magnitude (on 2MASS)magphot.mag;em.IR.Jfloatnullablee_Jmag[0.006/0.2]? Uncertainty in Jmagmagstat.error;phot.mag;em.IR.JfloatnullableW1[0.1/49]? First emission line width (MgII) (2)0.1nmspect.line.widthfloatnullablee_W1[0.1/742]? Uncertainty in W10.1nmstat.errorfloatnullableW2[0.1/602]? Second emission line width (2)0.1nmspect.line.widthfloatnullablee_W2[0.2/13471]? Uncertainty in W20.1nmstat.errordoublenullableW3[0.4/48]? Third emission line width (2)0.1nmspect.line.widthfloatnullablee_W3[0.2/21]? Uncertainty in W30.1nmstat.errorfloatnullableW4[11/111]? Fourth emission line width (H{alpha}) (2)0.1nmspect.line.widthfloatnullablee_W4[0.6/24]? Uncertainty in W40.1nmstat.errorfloatnullable