J/MNRAS/486/4987ivo://CDS.VizieR/J/MNRAS/486/4987doi:10.26093/cds/vizier.74864987CDSRusu C.E.Berghea C.T.Fassnacht C.D.More A.Seman E.Nelson G.J.,Chen G.C.-F.2024-08-19T20:18:31Z2022-12-13T12:38:51ZCDS support team

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

cds-question@unistra.frgravitational-lensingquasarsvisible-astronomyWe present results of a systematic search for gravitationally lensed quasars in Pan-STARRS1. Our final sample of candidates comprises of 91 systems, not including 25 rediscovered lensed quasars and quasar pairs. In the absence of spectroscopy to verify the lensing nature of the candidates, the main sources of contaminants are likely to be quasar pairs, which we consider to be a byproduct of our work, and a smaller number of quasar + star associations. Among the independently discovered quads is 2M1134-2103, for which we obtained spectroscopy for the first time, finding a redshift of 2.77 for the quasar. There is evidence for microlensing in at least one image. We perform detailed mass modelling of this system using archival imaging data, and find that the unusually large shear responsible for the diamond-like configuration can be attributed mainly to a faint companion ~4arcsec away, and to a galaxy group/cluster ~30arcsec away. We also set limits of z~0.5-1.5 on the redshift of the lensing galaxy, based on its brightness, the image separation of the lensed images, and an analysis of the observed photometric flux ratios.2019MNRAS.486.4987Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/486/4987CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/349 : The Pan-STARRS release 1 (PS1) Survey - DR1 (Chambers+, 2016)I/345 : Gaia DR2 (Gaia Collaboration 2018)J/ApJS/221/12 : AGNs in the MIR using AllWISE data (Secrest+, 2015)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/486/4987https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/486/4987http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/486/4987https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/486/4987https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/486/4987http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/486/4987GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/486/4987/table1 (gravitationally lensed quasar candidates and quasar pair candidates identified systematically from PS1)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/486/4987/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/486/4987/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/486/4987/table1?GETtext/xml+votable180.050000true2.06105889-4.609376940.005555555555555556Cone search capability for table J/MNRAS/486/4987/tableb1 (Previously confirmed candidates, and those ruled out by Gaia data or existing spectroscopy)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/486/4987/tableb1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/486/4987/tableb1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/486/4987/tableb1?GETtext/xml+votable180.050000true23.7455888924.5136350.0055555555555555566/58 324 671 813 1022 2074 2122 2163 2196 2360 2469 2481 2493 2623 2643 2645 2701 2772 2849 3547 3959 3999 4016 4532 4558-4559 4599 4608 4769 4850 4859 4972 5047 5634 5879 5987 6135 6707 6850 6912 6975 7030 7046 7324 7329 7345 7359 7434 7741 7771 8036 8172 8232 8237 8257 8273 8293 8358 8389 8407 8435 8523 8525 8573 8611 8613 8711 8725 8922 9027 9086 9092 9220 9300 9372 9458 9482-9483 9504 9549 9633 9863 10061 10229 10291 10299 10714 10785 10837 10925 10938 11061 11139 11374 11407 11496 11600 11764 11814 11911 12066 12101 12285 12316 12376 12469 12485 12532 12548 12577 12606 12643 12674 12695 12786-12787 12789 12792 12798 13132 13319 13322 13337 13492 13542 13568 13603 13620 13678 14874 14959 15044 15047 15070 15089 15134 15144 15163 15216 15244 15247 15312 16061 16111 16669 17119 17169 17221 17317 17369 17380 17616 17873 18126 18236 18474 18886 18991 19196 19242 19417 19474 19645 19966 20044 20047 20117 20162 20314 20581 20593 20597 20899 20902 21288 22512 22589 22675 22789 22808 22810 22813 22834 22998 23046 24786 24824 25010 25118 25127 25166 25245 25524 25690 25742 25871 25878 25974 26034 26170 26248 26391 26401 26460 26618 26638 26858 26928 26931 26990 27277 27641 27788 27826 27854 27986 28019 28244 28518 28625 29344 29772 29815 29999 30006 30723 30768 31032 31103 31134 31289 31369 31379 31399 31544 31583 31593 31703 31727 31894 31908-31909 31923 31926 31966 32296 32341 32358 32374 32489 32492 32506 32538 32588 32649 32695 32719 34672 34675 36080 36203 36379 36447 36760 36788 36834 38772 38871 40058 40204 40379 40718 40809 40828 40878 40916 40931 40955 42990 43883 43899 43985 44118 44124 44216 44354 44405 44438 44449 44493 44582 44640 44663 44749 44911 44949 44964 44982 45021 45028 46943 47042 48302 48308 48367 48391 48663 49029 49032 49041https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/486/4987?format=asciiOpticaldefaultJ/MNRAS/486/4987/table1gravitationally lensed quasar candidates and quasar pair candidates identified systematically from PS1NotesRemarks (G2)meta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameQuasar candidate name (HHMMSS+DDMMSS)meta.id;meta.maincharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainCompNumber of components (G1)meta.numberintimagi-band magnitude in the AB system of the brightest resolved componentmagphot.mag;em.opt.IfloatSepSeparation between the lens candidate point sources or, in case of a quad, the maximum separation between any of the point sourcesarcsecpos.angDistancefloatRank[ABC] Alphabetic ranking as gravitationally lensed quasars (1)meta.codecharGmag1? G-band magnitude of the first component (2)magphot.mag;em.optfloatnullableGmag2? G-band magnitude of the second component (2)magphot.mag;em.optfloatnullableGmag3? G-band magnitude of the third component (2)magphot.mag;em.optfloatnullablef_NameFlag on name (3)meta.codecharJ/MNRAS/486/4987/tableb1Previously confirmed candidates, and those ruled out by Gaia data or existing spectroscopyrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameQuasar candidate name (HHMMSS+DDMMSS)meta.id;meta.maincharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainCompNumber of components (G1)meta.numberintRank[ABC] Alphabetic ranking as gravitationally lensed quasars (1)meta.codecharimagi-band magnitude in the AB system of the brightest resolved componentmagphot.mag;em.opt.IfloatSepSeparation between the lens candidate point sources or, in case of a quad, the maximum separation between any of the point sourcesarcsecpos.angDistancefloatf_NameFlag on Name (2)meta.codeintNotesRemarks (G2)meta.notechar