J/ApJ/816/53ivo://CDS.VizieR/J/ApJ/816/53doi:10.26093/cds/vizier.18160053CDSWehrle A.E.Grupe D.Jorstad S.G.Marscher A.P.Gurwell M.,Balokovic M.Hovatta T.Madejski G.M.Harrison F.H.Stern D.2017-06-19T07:57:03Z2016-04-08T11:53:25ZCDS support team

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

cds-question@unistra.fractive-galactic-nucleimillimeter-astronomyphotometrysubmillimeter-astronomyvisible-astronomyWide-band photometryultraviolet-photometryx-ray-sourcesspectral-energy-distributionbl-lacertae-objectsBL Lac, the eponymous blazar, flared to historically high levels at millimeter, infrared, X-ray, and gamma-ray wavelengths in 2012. We present observations made with Herschel, Swift, NuSTAR, Fermi, the Submillimeter Array, CARMA, and the VLBA in 2012-2013, including three months with nearly daily sampling at several wavebands. We have also conducted an intensive campaign of 30 hr with every-orbit observations by Swift and NuSTAR, accompanied by Herschel, and Fermi observations. The source was highly variable at all bands. Time lags, correlations between bands, and the changing shapes of the spectral energy distributions can be explained by synchrotron radiation and inverse Compton emission from nonthermal seed photons originating from within the jet. The passage of four new superluminal very long baseline interferometry knots through the core and two stationary knots about 4 pc downstream accompanied the high flaring in 2012-2013. The seed photons for inverse Compton scattering may arise from the stationary knots and from a Mach disk near the core where relatively slow-moving plasma generates intense nonthermal radiation. The 95 spectral energy distributions obtained on consecutive days form the most densely sampled, broad wavelength coverage for any blazar. The observed spectral energy distributions and multi-waveband light curves are similar to simulated spectral energy distributions and light curves generated with a model in which turbulent plasma crosses a conical shock with a Mach disk.2016ApJ...816...53Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/816/53CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/MNRAS/441/1899 : Fermi bright blazars (Fuhrmann+, 2014)J/AJ/146/120 : MOJAVE. X. Parsec-scale kinematics of AGNs (Lister+, 2013)J/A+A/551/A142 : 7 yr Swift-XRT point source catalog (1SWXRT) (D'Elia+, 2013)J/ApJS/199/31 : Fermi LAT second source catalog (2FGL) (Nolan+, 2012)J/ApJ/761/125 : X and {gamma} spectral indexes of Fermi blazars (Fan+, 2012)J/ApJ/732/116 : IR spectra of {gamma}-ray bright blazars (Malmrose+, 2011)J/ApJ/716/30 : SED of Fermi bright blazars (Abdo+, 2010)J/AJ/138/1874 : MOJAVE VI. Kinematic analysis of blazar jets (Lister+, 2009)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/373/209 : BATC eim photometry of BL Lac (Hu+, 2006)J/AJ/130/1418 : AGN jet kinematics (Jorstad+, 2005)J/PAZh/30/243 : BVRIJHK phot. of BL Lac in 1999-2001 (Hagen-Thorn+, 2004)J/A+A/385/55 : Long-Term Polarization of BL Lac (Hagen-Thorn+ 2002)J/A+A/369/758 : VRI photometry of BL Lac (1997-1999) (Fan+, 2001)J/ApJ/522/846 : Optical monitoring of GeV loud blazars (Xie+, 1999)J/A+AS/136/455 : BVRI photometry of 3 BL Lac objects (Bai+, 1999)J/A+AS/132/83 : BVRI photometry of 7 BL Lac objects (Bai+ 1998)J/AZh/71/717 : Polarimetric Observations of BL Lac (Gagen-Torn+ 1994)http://www.swift.psu.edu/monitoring/ : Swift obs. of LAT monitored sourceshttp://www.astro.caltech.edu/marmot/ : The MARMOT projecthttp://www.bu.edu/blazars/VLBAproject.html : Research by BU blazar grouphttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/816/53https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/816/53http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/816/53https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/816/53https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/816/53http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/816/53GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tap6.278200917866839e-23 1.2058628298368645e-18RadioOpticalUVX-raydefaultJ/ApJ/816/53/table4CARMA datarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObsUT date of the observationstime.epoch;obsnullableMJDModified Julian Date of the observationdtime.epochdoubleFDen[5.1/18.1] CARMA 94.75GHz flux densityJyphot.flux.density;em.mm.50-100GHzfloate_FDen[0.5/1.8] Error in FDenJystat.errorfloatJ/ApJ/816/53/table2SMA 225GHz datarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObsUT date of the observationstime.epoch;obsnullableMJDModified Julian Date of the observationdtime.epochdoubleFreq[203.5/362.7] FrequencyGHzem.freqfloatFDen[1.1/14.7] SMA flux densityJyphot.flux.density;em.mm.200-400GHzfloate_FDen[0.06/1.6] Error in FDenJystat.errorfloatPIPrincipal investigator identifierobs.observercharJ/ApJ/816/53/table5Swift observation log of BL Lac (ObsID 30720 and 35028)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSwift[30720/35028] Swift target identifiermeta.idintSeg[5/143] Swift observation segmentmeta.idintStDate of the observation startstime.epochnullableEndDate of the observation endstime.epochnullableMJDModified Julian Date of mid-observationdtime.epochdoubleT-XRT[109/9323] Exposure time with Swift/XRTstime.expointT-V? Exposure time with Swift/UVOT V filterstime.expofloatnullableT-B? Exposure time with Swift/UVOT B filterstime.expofloatnullableT-U? Exposure time with Swift/UVOT U filterstime.expofloatnullableT-UVW1? Exposure time with Swift/UVOT UVW1 filterstime.expofloatnullableT-UVM2? Exposure time with Swift/UVOT UVM2 filterstime.expofloatnullableT-UVW2? Exposure time with Swift/UVOT UVW2 filterstime.expofloatnullableJ/ApJ/816/53/table6Observed 0.3-10keV fluxes, X-ray energy indices {alpha}_X_ and UVOT flux densities of BL LacrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSwift[30720/35028] Swift target identifiermeta.idintSeg[5/143] Swift observation segmentmeta.idintMJDModified Julian Date of mid-observationdtime.epochdoubleF0.3-10[1/8.1]? Swift/XRT 0.3-10keV flux (1)1e-14W.m**-2phot.flux;em.X-rayfloatnullablee_F0.3-10? Uncertainty in F0.3-10 (1)1e-14W.m**-2stat.errorfloatnullablef_F0.3-10[3]? Flag on F0.3-10 (2)meta.codeintnullablealphax[0.4/1.6]? X-ray spectral index (3)spect.indexfloatnullablee_alphax? Uncertainty in alphax (3)stat.errorfloatnullableFV[2.9/33.3]? Swift/UVOT V filter flux density (4)mJyphot.flux.density;em.opt.Vfloatnullablee_FV? Uncertainty in FVmJystat.errorfloatnullableFB[1.7/26.4]? Swift/UVOT B filter flux density (4)mJyphot.flux.density;em.opt.Bfloatnullablee_FB? Uncertainty in FBmJystat.errorfloatnullableFU[1/17.1]? Swift/UVOT U filter flux density (4)mJyphot.flux.density;em.opt.Ufloatnullablee_FU? Uncertainty in FUmJystat.errorfloatnullableFUVW1[0.5/10.7]? Swift/UVOT UVW1 filter flux density (4)mJyphot.flux;em.UVfloatnullablee_FUVW1? Uncertainty in FUVW1mJystat.errorfloatnullableFUVM2[0.4/8.9]? Swift/UVOT UVM2 filter flux density (4)mJyphot.flux;em.UVfloatnullablee_FUVM2? Uncertainty in FUVM2mJystat.errorfloatnullableFUVW2[0.3/7.6]? Swift/UVOT UVW2 filter flux density (4)mJyphot.flux;em.UVfloatnullablee_FUVW2? Uncertainty in FUVW2mJystat.errorfloatnullableJ/ApJ/816/53/table1SMA and Herschel datarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateDate of the observationtime.epochnullableMJDModified Julian Date of the observationdtime.epochintF1.3[8.2/14.7]? SMA 1.3mm flux densityJyphot.flux.density;em.mm.200-400GHzfloatnullablee_F1.3[0.4/0.8]? Error in F1.3Jystat.errorfloatnullableF0.87[5.5/14]? SMA 0.87mm flux densityJyphot.flux.density;em.mm.200-400GHzfloatnullablee_F0.87[0.4/1.6]? Error in F0.87Jystat.errorfloatnullableF500[5.7/9]? Herschel 500um flux density (2)Jyphot.flux.density;em.mm.400-750GHzfloatnullableF350[4.7/7.3]? Herschel 350um flux density (2)Jyphot.flux.density;em.mm.750-1500GHzfloatnullableF250[3.7/6.4]? Herschel 250um flux density (2)Jyphot.flux.density;em.mm.750-1500GHzfloatnullableF160a[1.3/4.7]? First Herschel 160um flux density (3)Jyphot.flux.density;em.mm.1500-3000GHzfloatnullableF100[0.8/3.6]? Herschel 100um flux density (3)Jyphot.flux.density;em.IR.60-100umfloatnullableF160b[1.2/4.8]? Second Herschel 160um flux density (3)Jyphot.flux.density;em.mm.1500-3000GHzfloatnullableF70[0.6/2.8]? Herschel 70um flux density (3)Jyphot.flux.density;em.IR.30-60umfloatnullableJ/ApJ/816/53/table10Observed RXTE 2.4-10keV fluxes and X-ray spectral slopes {alpha}_X_ and count rates of BL LacrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJDJulian Date of the observationdtime.epochdoubleInt[208/3184] Integration timestime.expointF2.4-10RXTE 2.4-10keV flux; erg/s/cm^2^mW.m**-2phot.flux;em.X-raydoublee_F2.4-10Error in F2.4-10; erg/s/cm^2^mW.m**-2stat.errordoublealphax[0.4/2.4] RXTE X-ray spectral indexspect.indexfloate_alphax[0.05/0.6] Error in alphaxstat.errorfloatCRate[0.4/4.1] RXTE count ratect/sphot.count;em.X-rayfloate_CRate[0.04/0.2] Error in CRatect/sstat.errorfloatJ/ApJ/816/53/table3SMA 345GHz datarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObsUT date of the observationstime.epoch;obsnullableMJDModified Julian Date of the observationdtime.epochdoubleFreq[203.5/362.7] FrequencyGHzem.freqfloatFDen[1.1/14.7] SMA flux densityJyphot.flux.density;em.mm.200-400GHzfloate_FDen[0.06/1.6] Error in FDenJystat.errorfloatPIPrincipal investigator identifierobs.observerchar