J/ApJS/238/13ivo://CDS.VizieR/J/ApJS/238/13doi:10.26093/cds/vizier.22380013CDSKapanadze B.Dorner D.Vercellone S.Romano P.Hughes P.Aller M.,Aller H.Reynolds M.Tabagari L.2020-01-17T10:55:35Z2018-11-19T10:13:20ZCDS support team

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

cds-question@unistra.frbl-lacertae-objectsx-ray-sourcesvisible-astronomybroad-band-photometryultraviolet-astronomygamma-ray-astronomyWe present the detailed timing and spectral results obtained during the Swift observations of the TeV-detected blazar 1ES 1959+650 in 2016 August-2017 November. The source continued its trend of gradually enhancing X-ray flaring activity in the 0.3-10keV energy range, starting in 2015 August, and a new highest historical brightness state was recorded twice. A long-term high state was superimposed by both weak and strong flares, and we detected 32 instances of intraday X-ray flux variability, including several occasions of extremely fast fluctuations with fractional amplitudes of 5.4%-7.5% within 1ks exposures. The 0.3-10keV spectra generally showed a best fit with the log-parabolic model, yielding a very wide range of the curvature parameter b and the photon index at 1keV. The position of the synchrotron SED peak Ep showed an extreme variability on various timescales between energies less than 0.1keV and 7.7+/-0.7keV, with 25% of the spectra peaking at hard X-rays. In 2017 May-November, the source mostly showed lower spectral curvature and an anticorrelation b-Ep, expected in the case of efficient stochastic acceleration of X-ray-emitting electrons. The 0.3-100GeV and optical-UV fluxes also attained their highest historical values in this period, although the latter showed an anticorrelation with the 0.3-10keV emission, which is explained by the stochastic acceleration of electrons with a narrow initial energy distribution, having an average energy significantly higher than the equilibrium energy.2018ApJS..238...13Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/238/13CatalogResearchIsServedByTAP VizieR generic servicerelated-toB/swift : Swift Master Catalog (HEASARC, 2004-)B/vsx : AAVSO International Variable Star Index VSX (Watson+, 2006-2014)VIII/76 : Leiden/Argentine/Bonn (LAB) Survey of Galactic HI (Kalberla+ 2005)J/A+AS/109/267 : Radio to X-Ray distribution of BL Lac Objects (Giommi+, 1995)J/A+AS/144/481 : BVRI photometry of 5 X-ray selected BL Lacs (Villata+, 2000)J/A+A/406/L9 : TeV Gamma-Rays from 1ES1959+650 (Aharonian+, 2003)J/A+A/433/1163 : Spectral catalog of BeppoSAX blazars (Donato+, 2005)J/ApJ/626/95 : Gamma-ray blazar candidates (Sowards-Emmerd+, 2005)J/A+A/445/441 : SED of BL Lacertae objects (Nieppola+, 2006)J/A+A/466/63 : VLBI observations of BL Lac objects (Wu+, 2007)J/ApJ/681/113 : Swift BAT survey of AGNs (Tueller+, 2008)J/ApJ/696/580 : Properties of weak emission-line QSOs (WLQ) (Shemmer+, 2009)J/ApJ/706/L7 : The Fermi LAT sky as seen by INTEGRAL/IBIS (Ubertini+, 2009)J/ApJ/707/L56 : VLBI and bright Fermi/LAT sources (Kovalev, 2009)J/AJ/137/3718 : 15GHz monitoring of AGN jets with VLBA (Lister+, 2009)J/A+A/520/A47 : Blazars in the Swift-BAT hard X-ray sky (Maselli+, 2010)J/ApJ/709/1407 : SED of the Fermi blazars (Li+, 2010)J/ApJ/716/30 : SED of Fermi bright blazars (Abdo+, 2010)J/ApJ/722/520 : Gamma-ray light curves of Fermi blazars (Abdo+, 2010)J/ApJ/722/L7 : Fermi/LAT detected MOJAVE AGNs (Pushkarev+, 2010)J/ApJ/741/30 : Radio/{gamma}-ray correlation in AGN (Ackermann+, 2011)J/ApJ/742/27 : 15GHz and jet properties of MOJAVE blazars (Lister+, 2011)J/ApJS/194/29 : Observations of blazars at 15GHz (Richards+, 2011)J/MNRAS/410/2690 : CRATES sources at 30 GHz (Peel+, 2011)J/A+A/541/A160 : Planck + X/{gamma} observations of blazars (Giommi+, 2012)J/ApJ/744/177 : VLBA 5GHz observations of Fermi/LAT AGNs (Linford+, 2012)J/ApJ/751/52 : AGN cand. from the WISE, 2MASS, RASS (W2R) (Edelson+, 2012)J/ApJ/754/23 : Blazar (sub-)mm+{gamma}-ray luminosities (Leon-Tavares+, 2012)J/ApJ/757/25 : Fermi/LAT AGN at 5GHz (Linford+, 2012)J/ApJ/761/125 : X and {gamma} spectral indexes of Fermi blazars (Fan+, 2012)J/AJ/145/31 : Catalog of X-ray selected BL Lac objects (Kapanadze+, 2013)J/AJ/146/120 : MOJAVE. X. Parsec-scale kinematics of AGNs (Lister+, 2013)J/ApJS/206/12 : Blazars with {gamma}-ray counterparts. I. (D'Abrusco+, 2013)J/ApJS/207/16 : BL Lac candidates for TeV observations (Massaro+, 2013)J/ApJS/209/14 : The Swift/BAT hard X-ray transient monitor (Krimm+, 2013)J/ApJS/212/15 : Polarized NVSS sources SEDs (Farnes+, 2014)J/A+A/563/A57 : Long-term variability of AGN at hard X-rays (Soldi+, 2014)J/other/RAA/14.1135 : Doppler factor for a Fermi blazar sample (Fan+, 2014)J/MNRAS/438/3058 : 15GHz variability of {gamma}-ray blazars (Richards+, 2014)J/MNRAS/439/690 : Optical/{gamma}-ray variability in blazars (Hovatta+, 2014)J/MNRAS/442/1693 : Gamma-ray-loud blazars opt. polarization (Pavlidou+, 2014)J/ApJ/810/14 : Third catalog of LAT-detected AGNs (3LAC) (Ackermann+, 2015)J/A+A/576/A126 : The 2009 multiwavelength campaign on Mrk421 (Aleksic+, 2015)J/AJ/150/67 : Optical photometry for 1ES 1959+650 (Yuan+, 2015)J/other/AstBu/70.264 : Sample of 877 blazars (Mingaliev+, 2015)J/MNRAS/458/56 : TeV gamma-ray blazar X-ray studies (Wierzcholska+,2016)J/A+A/587/A93 : MeV-GeV counterparts of TeV sources (Rappoldi+, 2016)J/A+A/596/A78 : R-band polarization curves of 48 BL Lacs (Hovatta+, 2016)J/ApJS/223/15 : 8yr INTEGRAL/IBIS soft gamma-ray source obs. (Bird+, 2016)J/ApJS/224/26 : SEDs of Roma BZCAT blazars (Mao+, 2016)J/ApJS/226/20 : X-ray, opt. + radio SEDs of Fermi blazars (Fan+, 2016)J/ApJ/833/77 : gamma-ray bright blazars optical polarization (Itoh+, 2016)J/AJ/152/12 : MOJAVE. XIII. New 15GHz obs. on 1994-2013 (Lister+, 2016)J/A+A/608/A68 : TeV BL Lacs multi-lambda fluxes (Fallah Ramazani+, 2017)J/ApJ/848/103 : ~1.5yr Swift observations of Mrk 421 (Kapanadze+, 2017)J/ApJ/851/33 : Multi-wavelength analysis of CGRaBS blazars (Paliya+, 2017)J/ApJS/233/17 : Swift/BAT AGN spectroscopic survey. V. X-ray (Ricci+, 2017)J/MNRAS/467/4565 : Bimodal radio variability in OVRO blazars (Liodakis+, 2017)J/ApJS/234/12 : MOJAVE XV. VLBA 15GHz obs. of AGNs 1996-2016 (Lister+, 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/238/13https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/238/13http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/238/13https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/238/13https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/238/13http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/238/13GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tap3.377399441402775e-19 1.2058628298368645e-18Gamma-rayX-rayUVOpticaldefaultJ/ApJS/238/13/table9Summary of the 0.3-10keV intraday variabilities (IDVs) in 2016 August-2017 NovemberrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObsIDObservation identifier(s)meta.id;obs.param;obscharDate1UT first date of the observationtime.epoch;obsnullableDate2? Second day of observation if anydtime.epoch;obsintnullableDelT[0.1/23.6] Total observation durationhtime.duration;obsfloatchi2[1.9/502.3] Reduced {chi}^2^ of model fitstat.fit.param;meta.modelledfloatdof[1/33] Degrees of fitstat.fit.dofintBinTime bin; Or = Orbittime.intervalcharFvar[3/34] Fractional amplitude%src.var.amplitude;arith.ratiofloate_Fvar[0.5/2] Uncertainty in Fvar%stat.errorfloatalow[1.5/2.5] Lower value of the photon index at E_1_ (1)spect.indexfloate_alow[0.02/0.06] Uncertainty in alowstat.errorfloataup[1.6/2.4]? Upper value of the photon index at E_1_ (1)spect.indexfloatnullablee_aup[0.02/0.05]? Uncertainty in aupstat.errorfloatnullableModelModel code (PL = Power law or LP = log-parabolic model)meta.code;stat.param;meta.modelledcharblow[0.1/0.7]? Lower value of the curvature parameter (1)stat.param;stat.minfloatnullablee_blow[0.04/0.1]? Uncertainty in blowstat.errorfloatnullablebup[0.2/0.9]? Upper value of the curvature parameter (1)stat.param;stat.maxfloatnullablee_bup[0.05/0.2]? Uncertainty in bupstat.errorfloatnullableEplow[0.1/4]? Lower value of the peak energy (1)em.energyfloatnullablee_Eplow[0.05/0.4]? Uncertainty in Eplowstat.errorfloatnullableEpup[0.7/4.7]? Upper value of the peak energy (1)em.energyfloatnullablee_Epup[0.08/0.5]? Uncertainty in Epupstat.errorfloatnullableHRlow[0.2/1.2]? Lower value in the hardness ratio (1)phot.flux;stat.minfloatnullablee_HRlow[0.01/0.04]? Uncertainty in HRlowstat.errorfloatnullableHRup[0.4/1.2]? Upper value in the hardness ratio (1)phot.flux;stat.maxfloatnullablee_HRup[0.02/0.05]? Uncertainty in HRupstat.errorfloatnullableJ/ApJS/238/13/table10The results from 2-week binned LAT data in the 0.3-2GeV and 2-300GeVrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintstDateUTC date of observation starttime.epochnullableEndDateUTC date of observation endtime.epochnullableTS0.3-2GeV[17.3/103.7] Test-statistic for the 0.3-2GeV energy rangestat.fit.goodnessfloatN0.3-2GeV[19.9/68.6] Number of model predicted photons for the 0.3-2GeV energy rangephmeta.numberfloatF0.3-2GeV[1.4/5.3] 0.3-2GeV photon flux1e-08ph.cm**-1.s**-1phot.flux.density;em.gamma.hardfloate_F0.3-2GeV[0.1/1.1] Uncertainty in F0.3-2GeV1e-08ph.cm**-1.s**-1stat.errorfloatG0.3-2GeV[1.1/2.9] 0.3-2GeV photon indexspect.indexfloate_G0.3-2GeV[0.1/0.3] Uncertainty in G0.3-2GeVstat.errorfloatTS2-300GeV[43.6/218.2] Test-statistic for the 2-300GeV energy rangestat.fit.goodnessfloatN2-300GeV[8.7/25.4] Number of model predicted photons for the 2-300GeV energy rangephmeta.numberfloatF2-300GeV[0.4/1.6] 2-300GeV photon flux1e-08ph.cm**-1.s**-1phot.flux.density;em.gamma.hardfloate_F2-300GeV[0.09/0.3] Uncertainty in F2-300GeV1e-08ph.cm**-1.s**-1stat.errorfloatG2-300GeV[1.3/2.5] 2-300GeV photon indexspect.indexfloate_G2-300GeV[0.08/0.2] Uncertainty in G2-300GeVstat.errorfloatJ/ApJS/238/13/swiftCombined table from original tablesUmag[6/13.8]? Swift/UVOT U band magnitudemagphot.mag;em.opt.Ufloatnullablee_Umag[0.03/0.3]? Uncertainty in Umagmagstat.error;phot.mag;em.opt.UfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSpDisplay the spectral analysis results (link to Table 4)meta.ref.urlintnullableObsID[34588023/93251014] Observation identifiermeta.id;obs.param;obsintprimarystUTC date of observation startstime.start;obsnullableendUTC date of observation endstime.end;obsnullableExp[415/1814] Exposure timestime.duration;obs.exposureintnullableMJD[57618.2/58069.8] Modified Julian Date of observation startdtime.epochdoublenullableCR[5.3/39.2] Mean 0.3-10keV count ratect/sphot.count;em.X-rayfloatnullablee_CR[0.07/0.5] Uncertainty in CRct/sstat.errorfloatnullablechi2[0.4/436.2] Reduced {chi}^2^ of model fitstat.fit.param;meta.modelledfloatnullabledof[1/26] Degrees of fitstat.fit.dofintnullableBinTime bintime.intervalcharVarExistence of flux variability (1)meta.code;src.varcharVmag[13.4/14.3]? Swift/UVOT V band magnitudemagphot.mag;em.opt.Vfloatnullablee_Vmag[0.03/0.06]? Uncertainty in Vmagmagstat.error;phot.mag;em.opt.VfloatnullableFV[7.1/15.2]? Swift/UVOT V band flux densitymJyphot.flux.density;em.opt.Vfloatnullablee_FV[0.03/0.6]? Uncertainty in FVmJystat.errorfloatnullableBmag[7.2/14.7]? Swift/UVOT B band magnitudemagphot.mag;em.opt.Bfloatnullablee_Bmag[0.02/0.3]? Uncertainty in Bmagmagstat.error;phot.mag;em.opt.BfloatnullableFB[4.1/13.5]? Swift/UVOT B band flux densitymJyphot.flux.density;em.opt.Bfloatnullablee_FB[0.04/0.4]? Uncertainty in FBmJystat.errorfloatnullableFU[4.7/13.3]? Swift/UVOT U band flux densitymJyphot.flux.density;em.opt.Ufloatnullablee_FU[0.03/0.3]? Uncertainty in FUmJystat.errorfloatnullableUVW1mag[4.2/13.6]? Swift/UVOT UVW1 band magnitudemagphot.mag;em.UVfloatnullablee_UVW1mag[0.03/0.3]? Uncertainty in UVW1magmagstat.error;phot.magfloatnullableFUVW1[3.4/7.6]? Swift/UVOT UVW1 band flux densitymJyphot.flux;em.UVfloatnullablee_FUVW1[0.1/0.4]? Uncertainty in FUVW1mJystat.errorfloatnullableUVM2mag[12.4/13.5]? Swift/UVOT UVM2 band magnitudemagphot.mag;em.UVfloatnullablee_UVM2mag[0.03/0.2]? Uncertainty in UVM2magmagstat.error;phot.magfloatnullableFUVM2[3.3/13.1]? Swift/UVOT UVM2 band flux densitymJyphot.flux;em.UVfloatnullablee_FUVM2[0.04/0.6]? Uncertainty in FUVM2mJystat.errorfloatnullableUVW2mag[4.6/13.6]? Swift/UVOT UVW2 band magnitudemagphot.mag;em.UVfloatnullablee_UVW2mag[0.03/0.2]? Uncertainty in UVW2magmagstat.error;phot.magfloatnullableFUVW2[2.8/7.7]? Swift/UVOT UVW2 band flux densitymJyphot.flux;em.UVfloatnullablee_FUVW2[0.1/0.3]? Uncertainty in FUVW2mJystat.errorfloatnullableJ/ApJS/238/13/table4Results of the spectral analysis with the log-parabolic modelrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObsIDObservation identifiermeta.id;obs.param;obsintm_ObsIDOr=orbit; S=segmentmeta.code.multipchara[1.5/2.5] The photon index at E_1_meta.code;spect.indexfloate_a[0.02/0.07] Uncertainty in astat.errorfloatb[0.1/0.9] The curvature parameterstat.fit.paramfloate_b[0.04/0.2] Uncertainty in bstat.errorfloatEp[0.1/7.8] Peak energykeVem.energyfloate_Ep[0.05/0.8] Uncertaint in EpkeVstat.errorfloat100K[3.3/27.4] Normalization factor times 100stat.fit.paramfloate_100K[0.08/0.5] Uncertainty in 100Kstat.errorfloatchi2[0.8/1.2] Reduced {chi}^2^ of model fitstat.fit.param;meta.modelledfloatdof[76/292] Degrees of Freedomstat.fit.dofintF0.3-2[8.9/76.8] De-absorbed 0.3-2keV flux (1)1e-14W.m**-2phot.flux;em.X-ray.softfloate_F0.3-2[0.3/1.7] Uncertainty in F0.3-2 (1)1e-14W.m**-2stat.errorfloatF2-10[4.6/88.6] De-absorbed 2-10keV flux (1)1e-14W.m**-2phot.flux;em.X-ray.mediumfloate_F2-10[0.1/3.2] Uncertainty in F2-10 (1)1e-14W.m**-2stat.errorfloatF0.3-10[17.5/158.2] De-absorbed 0.3-10keV flux (1)1e-14W.m**-2phot.flux;em.X-ray.mediumfloate_F0.3-10[0.4/3.3] Uncertainty in F0.3-10 (1)1e-14W.m**-2stat.errorfloatHR[0.2/1.3] Hardness ratio (HR=F2-10/F0.3-2)phot.flux;arith.ratiofloate_HR[0.01/0.2] Uncertainty in HRstat.errorfloat