J/MNRAS/522/767ivo://CDS.VizieR/J/MNRAS/522/767doi:10.26093/cds/vizier.75220767CDSJovanovic M.D.Damljanovic G.Taris F.Gupta A.C.Bhatta G.2024-11-06T20:34:48Z2023-04-18T15:55:12ZCDS support team

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

cds-question@unistra.frquasarsbl-lacertae-objectsinfrared-photometryvisible-astronomyphotometryHere we present the first optical photometric monitoring results of a sample of twelve newly discovered blazars from the ICRF - Gaia CRF astrometric link. The observations were performed from April 2013 until August 2019 using eight telescopes located in Europe. For a robust test for the brightness and colour variability, we use Abbe criterion and F-test. Moreover, linear fittings are performed to investigate the relation in the colour-magnitude variations of the blazars. Variability was confirmed in the case of 10 sources; two sources, 1429+249 and 1556+335 seem to be possibly variable. Three sources (1034+574, 1722+119, and 1741+597) have displayed large amplitude brightness change of more than one magnitude. We found that the seven sources displayed bluer-when-brighter variations, and one source showed redder-when-brighter variations. We briefly explain the various AGN emission models which can explain our results.2023MNRAS.522..767Jhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/522/767CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/522/767https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/522/767http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/522/767https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/522/767https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/522/767http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/522/767GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/522/767/sources (List of observed sources)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/522/767/sources?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/522/767/sources?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/522/767/sources?GETtext/xml+votable180.050000true13.02316670.59391670.0055555555555555566/5072 6067 8673 8918 9402 9796 10198 10978 11209 11557 18027 32261https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/522/767?format=asciiOpticalInfrareddefaultJ/MNRAS/522/767/sourcesList of observed sourcesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameQSO name (IERS BHHMM+DDd)meta.id;meta.maincharRAJ2000Simbad right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Simbad declination (J2000)pos.eq.dec;meta.mainLCShow the light curvesmeta.ref.urlcharJ/MNRAS/522/767/table3Light curvesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameQSO name (IERS BHHMM+DDd)meta.id;meta.maincharJDJulian date of observationtime.epochdoublemagMagnitude in filtermagphot.magfloate_magrms uncertainty of the magnitude determinationmagstat.error;phot.magfloatFilter[VR] Bandinstr.bandpasschar