J/A+A/655/A93ivo://CDS.VizieR/J/A+A/655/A93doi:10.26093/cds/vizier.36550093CDSArbet-Engels A.Baack D.Balbo M.Biland A.Bretz T.Buss J.,Dorner D.Eisenberger L.Elsaesser D.Hildebrand D.Iotov R.,Kalenski A.Mannheim K.Mitchell A.Neise D.Noethe M.Paravac A.,Rhode W.Schleicher B.Sliusar V.Walter R.2022-03-14T07:47:04Z2021-11-26T12:41:28ZCDS support team

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

cds-question@unistra.frbl-lacertae-objectsphotometrygamma-ray-astronomyx-ray-sourcesRadio-to-TeV observations of the bright nearby (z=0.034) blazar Markarian 501 (Mrk 501), performed from December 2012 to April 2018, are used to study the emission mechanisms in its relativistic jet. We examined the multi-wavelength variability and the correlations of the light curves obtained by eight different instruments, including the First G-APD Cherenkov Telescope (FACT), observing Mrk 501 in very high-energy (VHE) gamma-rays at TeV energies. We identified individual TeV and X-ray flares and found a sub-day lag between variability in these two bands. The source was found to be variable on different timescales. Simultaneous TeV and X-ray variations with almost zero lag are consistent with synchrotron self-Compton (SSC) emission, where TeV photons are produced through inverse Compton scattering. The characteristic time interval of 5-25 days between TeV flares is consistent with them being driven by Lense-Thirring precession.2021A&A...655A..93Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/655/A93CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/647/A88 : Multi-wavelength variability of Mrk 421 (Arbet-Engels+, 2021)J/ApJS/222/24 : VRI LCs of BL Lac object Mrk 501 2010-2015 (Xiong+, 2016)J/A+A/573/A50 : Mrk 501 multiwavelength observations in 2008 (Aleksic+, 2017)J/ApJ/849/161 : BVRI light curves of the BL Lac object Mrk 501 (Feng+, 2017)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/655/A93https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/655/A93http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/655/A93https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/655/A93https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/655/A93http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/655/A93GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tap9.939104355462015e-24 6.3822865317120225e-19Gamma-rayX-raydefaultJ/A+A/655/A93/fig1batSwift/BAT X-rays light-curve data (15-50keV)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameTarget namemeta.id;meta.maincharMJDModified Julian datedtime.epochdoubleExpTimeExposure timehtime.duration;obs.exposurefloatFluxFlux, 15-50keV, Swift/BAT0.001ph.s**-1.pixel**-1phot.fluxdoublee_FluxFlux error, 15-50keV, Swift/BAT0.001ph.s**-1.pixel**-1stat.error;phot.fluxdoubleJ/A+A/655/A93/fig1xrtsSwift/XRT X-rays light-curve data (0.3-2keV)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameTarget namemeta.id;meta.maincharMJDModified Julian datedtime.epochdoubleExpTimeExposure timehtime.duration;obs.exposuredoubleFluxFlux, 0.3-2keV, Swift/XRTph/sphot.fluxdoublee_FluxFlux error, 0.3-2keV, Swift/XRTph/sstat.error;phot.fluxdoubleJ/A+A/655/A93/fig1xrthSwift/XRT X-rays light-curve data (2-10 keV)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameTarget namemeta.id;meta.maincharMJDModified Julian datedtime.epochdoubleExpTimeExposure timehtime.duration;obs.exposuredoubleFluxFlux, 2-10keV, Swift/XRTph/sphot.fluxdoublee_FluxFlux error, 2-10keV, Swift/XRTph/sstat.error;phot.fluxdoubleJ/A+A/655/A93/fig1vbanOptical (V-band) light-curve datarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameTarget namemeta.id;meta.maincharMJDModified Julian datedtime.epochdoubleFluxFlux, V-band, Kuiper & Bok telescopesmJyphot.fluxdoublee_FluxFlux error, V-band, Kuiper & Bok telescopesmJystat.error;phot.fluxdoubleJ/A+A/655/A93/fig1uvotOptical Swift/UVOT (UVM2) light-curve dataFluxFlux, UVM2, Swift/UVOTmJyphot.fluxdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameTarget namemeta.id;meta.maincharMJDModified Julian datedtime.epochdoublee_FluxFlux error, UVM2, Swift/UVOTmJystat.error;phot.fluxdoubleJ/A+A/655/A93/fig1fermFermi LAT light-curve data (1-300GeV)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameTarget namemeta.id;meta.maincharMJDModified Julian datedtime.epochdoubleFluxFlux, 1-300GeV, Fermi LATph.cm**-2.s**-1phot.fluxdoublee_FluxFlux error, 1-300GeV, Fermi LATph.cm**-2.s**-1stat.error;phot.fluxdoubleULFlux? Flux upper limit, 95% confidence levelph.cm**-2.s**-1phot.fluxdoublenullableJ/A+A/655/A93/fig1factFACT telescope TeV light-curve data (E_threshold_~750GeV)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameTarget namemeta.id;meta.maincharMJDModified Julian datedtime.epochdoubleExpTimeExposure timehtime.duration;obs.exposurefloatExcsRateEvents excess per hour (in evts/h unit)h**-1phot.flux;arith.ratiofloatFluxFlux, E>750GeV, FACT1e-11ph.cm**-2.s**-1phot.fluxfloate_FluxFlux error, E>750GeV, FACT1e-11ph.cm**-2.s**-1stat.error;phot.fluxfloatFluxCUFlux, E>750GeV, FACT (in Crab unit)Crabphot.flux;em.X-rayfloate_FluxCUFlux error, E>750GeV, FAC (in Crab unit)Crabstat.errorfloatJ/A+A/655/A93/fig1radiOVRO radio light-curve data (15GHz)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameTarget namemeta.id;meta.maincharMJDModified Julian datedtime.epochdoubleFluxFlux, OVRO at 15GHzJyphot.flux.density;em.radio.12-30GHzdoublee_FluxFlux error, OVRO at 15GHzJystat.error;phot.fluxdouble