J/A+A/566/A36ivo://CDS.VizieR/J/A+A/566/A36doi:10.26093/cds/vizier.35660036CDSKoptelova E.Chiueh T.Chen W.P.Chan H.-H.2017-12-22T12:46:58Z2014-06-04T08:12:37ZCDS support team

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

cds-question@unistra.frquasarsgravitational-lensingphotometryWe performed a detailed photometric analysis of the lensed system UM673 (Q0142-100) and an analysis of the tentative lens models. High-resolution adaptive optics images of UM673 taken with the Subaru telescope in the H band were examined. We also analysed the J, H and K-band observational data of UM673 obtained with the 1.3m telescope at the CTIO observatory. We present photometry of quasar components A and B of UM673, the lens, and the nearby bright galaxy using H-band observational data obtained with the Subaru telescope. Based on the CTIO observations of UM673, we also present J- and H-band photometry and estimates of the J, H and K-band flux ratios between the two UM673 components in recent epochs. The near-infrared fluxes of the A and B components of UM673 and their published optical fluxes are analysed to measure extinction properties of the lensing galaxy. We estimate the extinction-corrected flux ratio between components A and B to be about 2.14 mag. We discuss lens models for the UM673 system constrained with the positions of the UM673 components, their flux ratio, and the previously measured time delay.2014A&A...566A..36Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/566/A36CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/544/A51 : R-band photometry of the lensed quasar UM673 (Koptelova+, 2012)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/566/A36https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/566/A36http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/566/A36https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/566/A36https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/566/A36http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/566/A36GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/566/A36/list (List of maps of UM673)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/566/A36/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/566/A36/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/566/A36/list?GETtext/xml+votable180.050000true26.32537-9.750780.005555555555555556Associated datahttps://cdsarc.cds.unistra.fr/assocdata/?obs_collection=J/A+A/566/A366/17510https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/566/A36?format=asciiOpticaldefaultJ/A+A/566/A36/listList of maps of UM673recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension of center (J2000)degpos.eq.ra;meta.mainDEJ2000Declination of center (J2000)degpos.eq.dec;meta.mainscale[0.0204] Scale of the imagearcsec/pixinstr.scalefloatNx[851] Number of pixels along X-axismeta.numberintNy[501] Number of pixels along Y-axismeta.numberintsize[1702] Size of FITS fileKibytephys.size;meta.fitsintfitsDownload the FITS filemeta.ref.urlcharFileNameName of FITS file in subdirectory fitsmeta.id;meta.fitscharTitleTitle of the filemeta.notecharAssocDataAssociated Data web pagemeta.bib.pagechar