J/ApJS/269/61ivo://CDS.VizieR/J/ApJS/269/61doi:10.26093/cds/vizier.22690061CDSDawes C.Storfer C.Huang X.Aldering G.Cikota A.Dey A.,Schlegel D.J.2024-11-06T20:30:39Z2024-03-19T14:09:50ZCDS support team

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

cds-question@unistra.frgravitational-lensingquasarsredshiftedvisible-astronomyspectroscopyinfrared-photometrybroad-band-photometrysurveysThe time delay between multiple images of strongly lensed quasars is a powerful tool for measuring the Hubble constant (H0). To achieve H0 measurements with higher precision and accuracy using the time delay, it is crucial to expand the sample of lensed quasars. We conduct a search for strongly lensed quasars in the Dark Energy Spectroscopic Instrument (DESI) Legacy Imaging Surveys. The DESI Legacy Surveys comprise 19000deg^2^ of the extragalactic sky observed in three optical bands (g, r, and z), making it well suited for the discovery of new strongly lensed quasars. We apply an autocorrelation algorithm to ~5 million objects classified as quasars in the DESI Quasar Sample. These systems are visually inspected and ranked. Here, we present 436 new multiply lensed and binary quasar candidates, 65 of which have redshifts from Sloan Digital Sky Survey Data Release 16. We provide redshifts for an additional 18 candidates from the SuperNova Integral Field Spectrograph.2023ApJS..269...61Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/269/61CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/154 : Sloan Digital Sky Surveys (SDSS), Release 16 (DR16) (Ahumada+, 2020)VII/289 : SDSS quasar catalog, sixteenth data release (DR16Q) (Lyke+, 2020)VII/292 : DESI Legacy Imaging Surveys DR8 photometric redshifts (Duncan, 2022)J/AJ/143/119 : SDSS Quasar Lens Search. V. Final catalog (Inada+, 2012)J/A+A/622/A165 : Gaia GraL. III. New lensed systems (Delchambre+, 2019)J/ApJ/876/85 : HST observations for LMC Cepheids (Riess+, 2019)J/MNRAS/486/4987 : Gravitationally lensed quasars in Pan-STARRS1 (Rusu+, 2019)J/ApJ/894/78 : Strong gravitational lenses from DECaLS (Huang+, 2020)J/A+A/642/A148 : SuGOHI VI. List up to 2020 (Sonnenfeld+, 2020)J/ApJ/909/27 : Gravitational lenses in DESI Legacy Surveys (Huang+, 2021)J/ApJ/921/42 : Gaia GraL. VI. Quadruply imaged lensed QSOs (Stern+, 2021)J/A+A/672/A123 : Lensed QSO candidates in DESI-LS DR9 (He+, 2023)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/269/61https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/269/61http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/269/61https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/269/61https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/269/61http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/269/61GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/269/61/table2 (New candidates)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/269/61/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/269/61/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/269/61/table2?GETtext/xml+votable180.050000true5.097-41.77780.0055555555555555566/538 561 587 2096 4164-4165 4235 4419 4428 4464 4540 4552 4556 4558 4651 4663 4775-4776 4779 4825 4848 4937 5171 5290 5296 5322 5332 5339 5410 5466 5477 5550 5663 5669 5745 5752 5754 5815 5822 5857 5870 5946 6085 6164 6194 6210 6243 6426-6427 6438 6714 6735 6936 6964 7009 7046 7069 7072 7105 7210 7248 7293 7412 7450 7452 7550 7656 7710 7820 7841 8116 8519 8638 8714 8734 9017 9038 9168 9182 9307 9327 9359 9385 9390 9549 9647-9648 9738 9774 10357 10458 10471 10511 10581 10762 10768 10822 10938 10992 11059 11088 11097 11384 11395 11406 11440 11553 11613 11645 11670 11735 11741 11871 11954 12141 12160 12297 12399 12418-12419 12552 12556 12634 13335 13576 14885 14907 14974 14981 15044 15102 15143 15158 15240 15273 15276 15331 15913 15930 16104 16653 16689 16692 16747 16790 16849 17132 17305 17447 17556 17607 17616 17631 17712 17734 17739 17746-17747 17849 17873 17886 17928 17963 17977 17989 18002 18011 18102 18127 18209 18236-18237 18269 18475 18530 18641 18779 18787 18800 18864 18892 19280 19385 19496 19692 19710 19768 19826 19866 19869 19877 19910 19932 19938 20130 20150 20159 20340 20366 20403 20521 20629 20674 20715 21025 21063 21849 21864 21955 22014 22337 22385 22484 22564 22566 22636 22648 22654 22667 22714 22719 22729 22758 23074 23127 23173 23201 23204 25528 25545 25597 25795 25834 25853 25878 25986 26035 26070 26159 26280 26285 26325 26375 26381 26407 26448 26500 26528 26555 26587 26597 26884 26901 26913 26930 26978 27169 27248 27390 27575 27630 27643 27690 27702 27705 27723 27730 27747 27759 27795 27852 27863 28103 28204 28370 28399 28513 28669 30063 30072 31429 31462 31503 31505 31535 31565 31622-31623 31678 31931 31978 32281 32312 32331 32339 32372-32373 32401 32435 32570 32573 32626 32719 32725 33182 33199 33215 33275 33482 33544 33660 33668 33697 33724 33815 33827 33831 33895 33899 33929 33947 33954 33973 33993 34031 34114 34134 34159 34232 34316 34326 34337 34353 34391 34408 34430 34554 34605 34615 34621 34660 34699 34725 34737-34738 34752 34774 34826 34878 34969 35041 35099 35171 35207 35274 35354 35390 35407 35411 35493 35523 35591 35621 35626 35700 35711 35731 35858 35862 35884 35886 35917 35930 36011 36036 36049 36064 36088 36116 36244 36375 36379 36412 36472 36490 36584 36625 36758 36760 36783 36794 39081 39470 39564 39567 39586 40889 40949 40951 40955 45003 45009 45429-45430 45439 45510 45831 45910 45931 46077 46165 46206 46231 46240 46292 46294 46340 46371 46404 46406 46489 46515 46597 46640 46644 46672 46691 47361 47459 48615 48625 49113 49147https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/269/61?format=asciiOpticalInfrareddefaultJ/ApJS/269/61/table2New candidatesIndex[1/436] Index numbermeta.idintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintzsp[0.36/3.6]? Quasar spectroscopic redshift from SDSS DR16src.redshiftdoublenullablef_zsp[*] * = redshift from SNIFS instead of SDSS DR16meta.code;src.redshiftcharzph[0.1/2.5]? Photometric redshift of putative lensing galaxy from Zhou+ (2021MNRAS.501.3309Z)src.redshiftfloatnullablee_zph[0.04/0.6]? Uncertainty in zphstat.errorfloatnullablegmag[17.6/24.3] Apparent g band AB magnitudemagphot.mag;em.opt.Bfloatrmag[17.5/23] Apparent r band AB magnitudemagphot.mag;em.opt.Rfloatzmag[17.2/22.6] Apparent z band AB magnitudemagphot.mag;em.opt.IfloatPXSig[0/3.4]? Parallax significancestat.fit.goodnessfloatnullablePMSig[0.05/7.8]? Proper motion significancestat.fit.goodnessfloatnullableTypeDouble or quad groupingsrc.classcharSep[0.3/5]? Average separation of imagearcsecpos.angDistance;obs.image;stat.meanfloatnullable_RAPositions from system names (right ascension part)degpos.eq.ra;meta.main_DEPositions from system names (declination part)degpos.eq.dec;meta.mainNameSystem name; RA & DE in decimal formatmeta.id;meta.maincharGradeHuman inspection grade ("A":highest confidence, "B", "C" or NULL for nonlens; see Section 4)stat.fit.paramchar