J/ApJS/271/54ivo://CDS.VizieR/J/ApJS/271/54doi:10.26093/cds/vizier.22710054CDSFu Y.Wu X.-B.Li Y.Pang Y.Joshi R.Zhang S.Wang Q.Yang J.,Ng F.Liu X.Qiu Y.Zhu R.Wang H.Wolf C.Zhang Y.Huo Z.-Y.,Ai Y.L.Ma Q.Feng X.Bouwens R.J.2024-11-06T20:31:21Z2024-07-30T16:00:18ZCDS support team

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

cds-question@unistra.fractive-galactic-nucleiquasarssurveysproper-motionsvisible-astronomyinfrared-photometryredshiftedA complete and pure sample of quasars with accurate redshifts is crucial for quasar studies and cosmology. In this paper, we present CatNorth, an improved Gaia Data Release 3 (Gaia DR3) quasar candidate catalog with more than 1.5 million sources in the 3{pi} sky built with data from Gaia, Pan-STARRS1, and CatWISE2020. The XGBoost algorithm is used to reclassify the original Gaia DR3 quasar candidates as stars, galaxies, and quasars. To construct training/validation data sets for the classification, we carefully built two different master stellar samples in addition to the spectroscopic galaxy and quasar samples. An ensemble classification model is obtained by averaging two XGBoost classifiers trained with different master stellar samples. Using a probability threshold of p_QSOmean_>0.95 in our ensemble classification model and an additional cut on the logarithmic probability density of zero proper motion, we retrieved 1,545,514 reliable quasar candidates from the parent Gaia DR3 quasar candidate catalog. We provide photometric redshifts for all candidates with an ensemble regression model. For a subset of 89100 candidates, accurate spectroscopic redshifts are estimated with the convolutional neural network from the Gaia BP/RP spectra. The CatNorth catalog has a high purity of ~90%, while maintaining high completeness, which is an ideal sample to understand the quasar population and its statistical properties. The CatNorth catalog is used as the main source of input catalog for the Large Sky Area Multi-Object Fiber Spectroscopic Telescope phase III quasar survey, which is expected to build a highly complete sample of bright quasars with i<19.5.2024ApJS..271...54Fhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/271/54CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIII/227 : General Catalog of galactic Carbon stars, 3d Ed. (Alksnis+ 2001)I/323 : International Celestial Reference Frame 2, ICRF2 (Ma+, 2009)V/156 : LAMOST DR7 catalogs (Luo+, 2019)VII/289 : SDSS quasar catalog, sixteenth data release (DR16Q) (Lyke+, 2020)II/365 : The CatWISE2020 catalog (28-Jan-2021 version) (Marocco+, 2021)I/350 : Gaia EDR3 (Gaia Collaboration, 2020)III/286 : APOGEE-2 DR17 final allStar catalog (Abdurro'uf+, 2022)I/355 : Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022)I/356 : Gaia DR3 Part 2. Extra-galactic (Gaia Collaboration, 2022)VII/294 : The Million Quasars (Milliquas) catalogue, version 8 (Flesch, 2023)J/AJ/131/2766 : Quasar luminosity function from SDSS-DR3 (Richards+, 2006)J/ApJS/165/1 : BAL QSOs from SDSS DR3 (Trump+, 2006)J/ApJS/180/67 : Phot. selection of quasars from SDSS. II. (Richards+, 2009)J/MNRAS/411/435 : Stellar parameters and extinction (Bailer-Jones, 2011)J/ApJ/750/99 : The Pan-STARRS1 photometric system (Tonry+, 2012)J/other/RAA/15.1671 : New carbon stars from LAMOST survey (Si+, 2015)J/ApJ/815/33 : A Hubble diagram for quasars (Risaliti+, 2015)J/ApJ/817/73 : QSOs and RR Lyrae in Pan-STARRS1 3{pi} Data (Hernitschek+ 2016)J/AJ/151/24 : LAMOST quasar survey: quasar properties from DR1 (Ai+, 2016)J/other/RAA/16.C7 : LAMOST-SDSS galaxy pairs (Shen+, 2016)J/ApJS/234/31 : Carbon stars from LAMOST using machine learning (Li+, 2018)J/AJ/155/189 : LAMOST Quasar Survey: properties from DR2&3 (Dong+, 2018)J/ApJS/240/6 : LAMOST Quasar Survey: Data Releases 4 and 5 (Yao+, 2019)J/ApJS/240/31 : M-subdwarf research. I. LAMOST DR4 spectra obs. (Zhang+, 2019)J/A+A/632/A56 : KiDS-BEXGO catalog (Khramtsov+, 2019)J/ApJS/245/34 : Abundances for 6 million stars from LAMOST DR5 (Xiang+, 2019)J/ApJS/250/17 : NGVS. XXXIV. Ultracompact dwarf galaxies in Virgo (Liu+, 2020)J/A+A/649/A3 : Gaia Early Data Release 3 photometric passbands (Riello+, 2021)J/A+A/649/A81 : KiDSDR4 QSOs photometric redshifts catalog (Nakoneczny+, 2021)J/ApJS/254/6 : Finding QSOs behind the Galactic Plane. I. (Fu+, 2021)J/AJ/162/72 : Random forests method to discover high-z QSOs (Wenzl+, 2021)J/ApJS/261/32 : Finding GPQs. II. Sp. obs. of |b|<20{deg} QSOs (Fu+, 2022)J/ApJS/265/25 : LAMOST Quasar Survey DR6-DR9 (Jin+, 2023)J/A+A/674/A41 : Composite quasar spectra from Gaia DR3 (Gaia Coll., 2023)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/271/54https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/271/54http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/271/54https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/271/54https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/271/54http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/271/54GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/271/54/table4 (The CatNorth quasar candidate catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/271/54/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/271/54/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/271/54/table4?GETtext/xml+votable180.050000true0.0002069435.323836110.0055555555555555560/1-2 1/0 17-19 25-27 30 2/8-10 48-49 52-53 58-59 62-63 65-67 82 85 88 90-91 97-99 117 126-127 141-143 157 159 173-175 189-191 3/18 26 29 31 44-45 53 55 61-63 200-201 204-205 216-217 220 226-227 247 257-259 321-324 326 332-333 337 348-349 351 356 358-359 368 370 373 375-376 378 387 453 458-459 464-465 496 498-499 502-503 541-543 557-559 561-563 606-607 625 627 632-633 635 685-687 691 733-735 749-751 753-755 4/64 66-70 76 85 87 93-95 97-101 108 110 123 184-186 188 192-194 200 202 208-209 211 219 224 237-239 241-243 809 812-813 824-825 828-829 872-873 876-877 884-886 888 922-923 926-927 970-971 974 985 987 1027 1283 1300 1302-1303 1308 1310-1311 1336 1338-1339 1341-1343 1345 1347 1356-1357 1359 1381 1383-1384 1386 1400-1401 1403 1430-1431 1486 1489 1491 1508 1510 1518 1525 1527 1533 1535 1543 1547 1808-1809 1850 1865 1868-1869 1871 1905 1908-1909 1911 1988 1990-1991 2000 2002-2003 2143 2159 2163 2207 2227 2243 2415 2421-2423 2479 2489-2491 2494 2505-2507 2536-2537 2539 2679 2683-2684 2719 2739 2755 2759 2762-2763 2911 2927 2931 2975 2995 3011 5/260-261 284 286 309-310 312 314 318-321 330-331 339 347 354-355 357-361 367-369 371 385-387 408 410-412 414 436 448 452-454 463 482 485-489 491 748-750 756 758 760 780 782-784 793 804-806 813 820 825-826 829 841-842 865 869-871 873 875 900 904 906 919 925-927 945 947 960-961 963 3232-3233 3235 3261 3308 3320-3321 3323-3325 3496 3500-3501 3513 3516-3517 3548 3556-3558 3560 3598 3680 3682-3683 3686 3703 3874-3875 3878-3879 3890 3893 3895 3900 3902-3903 3931 3934-3936 3939 3944 3946-3947 4103 4107 5127 5131 5236 5238 5348-5349 5360 5362-5363 5379 5384-5385 5387 5408 5411-5413 5418 5421 5433-5435 5506 5512 5514 5521 5529 5548 5550 5557 5559 5608-5609 5611 5712 5714-5715 5717-5718 5912 5914 5936 5938 5950 5953 5988-5989 5991 5997 6036 6038-6039 6044-6046 6064 6066-6067 6070 6077-6079 6090 6096-6097 6099 6104 6106-6107 6112 6117 6122 6129 6131 6136 6159 6165-6167 6169-6171 6181-6183 6185-6187 7189 7244 7281 7285 7304-7306 7310 7322 7327 7370 7394 7399 7405-7407 7416 7418-7419 7422-7423 7456-7457 7468-7469 7480 7593-7595 7617-7618 7629 7640-7641 7668-7669 7956 7958-7959 8024 8026-8028 8030 8567 8571 8631 8635 8647 8651 8823 8827 8887 8891 8893-8895 8903 8907 8967 8971 9655 9659 9677-9679 9681-9683 9911 9915 9931 9933-9935 9943 9946 9952-9954 9968 9970 9972 9991 9997-9999 10017 10019 10155 10710 10713 10715 10725-10727 10729-10731 10740-10741 10743-10744 10746-10747 10749-10751 10875 10951 10955 11019 11029-11031 11033-11035 11040-11042 11045-11047 11639 11643 11703 11707 11719 11723 11899 11975 11979 12039 12043 6/1048-1049 1051 1053 1055 1140 1142-1143 1148-1149 1151 1232-1234 1245-1246 1252-1254 1260 1262-1263 1265-1270 1288 1290-1292 1294-1295 1297-1298 1301 1303 1308 1311-1313 1315 1317-1319 1329 1333-1336 1339 1341-1342 1344 1349-1351 1353-1355 1379 1381-1383 1385-1387 1409 1413-1415 1425-1427 1448-1449 1451 1454-1457 1462-1464 1467 1480-1482 1536-1538 1637-1639 1652 1654-1655 1660-1662 1748 1752 1754-1755 1759 1781-1782 1784 1786-1787 1789 1791 1801 1803 1806-1807 1820-1822 1825 1827 1831 1833 1835 1837-1838 1841-1845 1847-1848 1920-1921 1924 1932 1934-1937 1939 1961 1963 3004-3006 3029 3031 3036 3038 3044-3046 3049-3050 3056-3057 3060-3062 3070 3124-3126 3140 3142 3144-3146 3149-3152 3163 3165 3167-3170 3176 3178-3179 3181-3182 3184 3190 3193-3195 3197 3228 3230 3248-3250 3257-3258 3260-3262 3266-3267 3269 3273 3275-3278 3285-3286 3288 3290-3291 3295-3296 3309-3312 3314-3315 3320 3322 3325 3360 3362 3372 3375 3456-3458 3465-3467 3469-3473 3475 3488 3490-3491 3496-3497 3499 3604 3606 3608-3610 3612-3613 3615 3620-3622 3628 3631 3633-3636 3639 3642-3644 3648 3650 3654 3658-3661 3664-3665 3667 3669-3671 3674-3675 3680 3682-3684 3691-3692 3694 3697-3698 3727 3730 3737 3742-3745 3756-3757 3759-3760 3762 3765-3767 3769-3772 3774-3775 3777-3779 3785-3787 3849 3851 12939 12960 12967 12977-12978 12980-12981 12990 13024-13026 13033 13040-13041 13043 13217 13219-13222 13224 13229-13230 13237-13238 13240 13242 13244 13288-13289 13305 13307 13310-13311 13988-13989 13992 13994 13996 14009-14010 14013 14048-14049 14051 14057-14059 14061 14072-14074 14078 14196 14198 14202-14204 14236 14244-14246 14249 14251 14253-14254 14256 14260 14264 14272-14274 14276 14282 14293 14295 14299 14303 14318 14334-14335 14368 14373 14376 14378-14380 14382-14383 14387 14397-14398 14439-14440 14442-14443 14446-14447 14457 14459 14461 14607 14609 14634-14635 14639 14641 14645-14646 14667 14669 14724-14725 14727 14737-14739 14742-14743 14750-14751 14790-14792 14795 14797-14799 14809-14811 15364 15367 15414 15418 15441-15442 15453 15469-15470 15473-15474 15486-15487 15490 15493-15495 15506-15507 15509-15510 15552 15554-15556 15558-15559 15565-15568 15570-15571 15576-15577 15579 15604-15606 15619 15631 15635 15646 15654 15658-15659 15662-15663 15666 15669 15671-15672 15674-15675 15678-15679 15683 15698 15703 15705 15709 15711 15716-15717 15719-15721 15731 15733-15735 15748 15750-15752 15754-15755 15780-15781 15783 16407 16411 16423 16427 20501 20503 20506-20507 20517-20519 20521 20523 20816 20818-20819 20821-20823 20825-20826 20829 20948-20949 20951 20956 20958-20959 21400-21402 21404-21405 21407 21444-21446 21504 21506 21508-21509 21511 21513 21515 21546 21636-21637 21641-21643 21657-21658 21661 21663 21666-21668 21671 21677-21680 21683 21688-21689 21691-21693 21695 21728-21729 21731 22016-22018 22021 22030 22036-22038 22043 22045-22047 22052 22054 22060 22062 22064-22065 22069 22073 22075 22080-22081 22083 22089 22091-22093 22095 22112-22113 22122 22124 22160 22162-22163 22166-22168 22170 22172-22174 22197 22199 22204-22206 22214-22216 22218-22220 22224-22225 22232-22233 22240 22245-22246 22248-22249 22251 22253 22256 22261 22269 22271 22441-22443 22852 22854 22864-22865 22867 22876 22878-22879 23616-23617 23619-23620 23622 23624 23626-23627 23629-23630 23632 23634 23637 23639-23640 23642 23644-23645 23652-23653 23660 23669-23670 23672 23674 23748 23750 23756 23758-23759 23761 23763-23765 23774 23792 23795 23797 23806 23808-23809 23811 23817 23819-23821 23823 23842 23844-23846 23849 23853-23855 23937-23938 23943 23961 23963 23969 23972 23975 23979 23983-23984 23987 23993 23998-23999 24149 24151 24188 24190 24260 24262-24263 24272-24273 24275-24278 24287 24304-24306 24323 24330 24332 24337-24338 24342-24343 24345-24347 24349-24350 24369 24374-24377 24383 24392-24394 24420-24421 24423 24455-24458 24460 24465 24467 24473 24475-24478 24480 24482-24484 24497 24499 24501 24503 24505 24511-24512 24514 24520-24522 24549 24551 24553 24555-24557 24559 24627 24630-24631 24633 24635 24653 24655 24658-24659 24674-24675 24717-24719 24721-24723 24737-24739 28749 28755 28761-28762 28764-28765 28767 28775 28780 28784-28785 28788-28789 28856 28919 28960 28965-28967 28973 28980-28981 28983 28985-28989 28991 29056 29072-29074 29077 29086 29121 29128 29132-29133 29136 29138-29139 29145-29149 29151 29154-29155 29172-29173 29183 29193-29194 29199 29209-29210 29228-29230 29234 29236 29238 29244 29246-29247 29258 29278 29282-29284 29286 29293-29295 29297-29298 29301-29302 29304 29306 29451 29466 29475 29489 29502 29517 29526 29546 29559 29569-29574 29580-29582 29584-29586 29590-29593 29595 29616-29617 29619 29632 29634 29639 29642 29645 29652 29655-29657 29660 29668-29669 29671 29682-29683 29686-29687 29832-29834 29837-29839 29857 29859-29861 29863-29864 29868-29870 29881 29884 29886 29924-29926 29930-29933 29935 30212 30224 30251 30277 30279 30287-30289 30291-30293 30295 30300-30301 30303 30313 30323 30325-30326 30363-30364 30367-30368 30370-30371 30387-30388 30391-30393 30395-30396 30398-30399 30410 30423 30437 30440 30443-30444 30446-30447 30456 30459 30461-30465 30467 30476 30478-30479 30496 30502 30504 30512-30513 30515 30521 30523-30524 30568-30570 30572-30573 30592 30610 30624 30626 30632 30638-30640 30652 30656-30657 30659-30660 30669 30684 31829-31831 32016 32019 32023-32026 32028 32030-32031 32066 32068 32071-32072 32074-32075 32078-32079 32081 32088-32090 32093 32100 32102 32119 32125-32127 34261-34263 34266-34267 34279 34283 34519 34523 34535 34539 34582-34583 34587 34599 34602-34603 35287 35291 35303 35307 35543 35559 35563 35569-35571 35607 35611 35623 35627 35863 35867 35877-35879 35883 38397 38399 38614-38615 38617 38619 38629-38631 38633 38635 38685-38687 38695 38699 38701-38703 38705-38707 38721 38723 39406-39407 39421-39423 39642-39643 39653 39655 39657 39659 39703 39707 39711 39721-39723 39729 39731 39744 39750 39752 39754 39759-39760 39762-39763 39765 39767 39769-39771 39779-39782 39788 39790-39792 39794 39797-39798 39801-39805 39807 39820 39822-39823 39878-39879 39884 39886-39887 39892-39894 39897-39902 39920 39922-39926 39928-39929 39931-39932 39934-39935 39959 39983 39985-39987 40073 40075 40608-40609 40611-40613 40615 40619 42749 42751 42814-42815 42831 42839 42844 42846-42847 42851 42857-42859 42894-42895 42897 42899 42913-42915 42968-42969 42971 42980-42982 42992-42993 42995 43479 43486-43487 43493-43495 43499 43741 43743 43765 43773-43775 43799 43801-43803 43815 43817-43819 44069-44071 44075 44109-44111 44113 44115 44129-44131 44172-44173 44175 44178-44179 46551 46555 46567 46571 46806-46807 46811 46823 46825-46827 46871 46875 46887 46891 47575 47581 47583 47590-47591 47595 47829 47831 47837 47861 47871 47893 47895 47897-47899 47910-47911 47913-47915 48149 48151 48153-48155 48165 48167 481711.9867573869263685e-19 4.670716440110116e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/271/54?format=asciiOpticalInfrareddefaultJ/ApJS/271/54/table4The CatNorth quasar candidate catalogGaiaGaia DR3 unique source identifiermeta.id;meta.mainindexed_RA.icrsRight ascension (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.raindexed_DE.icrsDeclination (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.decindexedSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRA_ICRSGaia DR3 Right ascension (ICRS) at Ep=2016.0degpos.eq.ra;meta.mainindexedDE_ICRSGaia DR3 Declination (ICRS) at Ep=2016.0degpos.eq.dec;meta.mainindexedGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latdoubleplx[-11.7/14] Gaia DR3 parallaxmaspos.parallax.trigfloate_plx[0/5] Uncertainty in plxmasstat.error;pos.parallaxfloatpmRA[-10/9.4] Gaia DR3 proper motion in RA directionmas/yrpos.pm;pos.eq.rafloate_pmRA[0/4] Uncertainty in pmRAmas/yrstat.error;pos.pm;pos.eq.rafloatpmDE[-9.2/9.6] Gaia DR3 proper motion in DE directionmas/yrpos.pm;pos.eq.decfloate_pmDE[0/4] Uncertainty in pmDEmas/yrstat.error;pos.pm;pos.eq.decfloatpmCorr[-0.9/0.9] Correlation between pmra and pmdecstat.correlationfloatBpmag[9.9/24]? Gaia DR3 integrated blue passband mean magnitudemagphot.mag;em.opt.BfloatnullableGmag[10/22]? Gaia DR3 G-band mean magnitudemagphot.mag;em.optfloatnullableRpmag[9.4/24]? Gaia DR3 integrated Red passband mean magnitudemagphot.mag;em.opt.RfloatnullableBP-RP[-4/4] Gaia DR3 (BP-RP) colormagphot.color;em.opt.B;em.opt.RfloatExcess[0.2/43.1]? Gaia DR3 BP/RP excess factorphot.flux;arith.ratiofloatnullablePS1PS1 unique object identifier (objID)meta.id.crossindexedRAPdegPS1 Right Ascension (J2000) (1)degpos.eq.raDEPdegPS1 Declination (J2000) (1)degpos.eq.decgmag[11/30]? Mean PSF AB magnitude from PS1 g-filter detectionsmagphot.mag;em.opt.Bfloatnullablee_gmag[0.01/0.5]? Uncertainty in gmagmagstat.error;phot.magfloatnullablermag[10/26]? Mean PSF AB magnitude from PS1 r-filter detectionsmagphot.mag;em.opt.Rfloatnullablee_rmag[0.01/0.5]? Uncertainty in rmagmagstat.error;phot.magfloatnullableimag[10.2/23] Mean PSF AB magnitude from PS1 i-filter detectionsmagphot.mag;em.opt.Ifloate_imag[0/0.22] Uncertainty in imagmagstat.error;phot.magfloatzmag[12.7/23]? Mean PSF AB magnitude from PS1 z-filter detectionsmagphot.mag;em.opt.Ifloatnullablee_zmag[0.01/0.5]? Uncertainty in zmagmagstat.error;phot.magfloatnullableymag[6.6/22.4]? Mean PSF AB magnitude from PS1 y-filter detectionsmagphot.mag;em.IR.Jfloatnullablee_ymag[0.01/0.5]? Uncertainty in ymagmagstat.error;phot.magfloatnullableRACdegCatWISE2020 Right Ascension (J2000)degpos.eq.raDECdegCatWISE2020 Declination (J2000)degpos.eq.decpmRACW[-2.1/2.5] CatWISE2020 proper motion in RA directionarcsec/yrpos.pm;pos.eq.rafloatpmDECW[-5.3/3] CatWISE2020 proper motion in DE directionarcsec/yrpos.pm;pos.eq.decfloate_pmRACW[0/0.4] Uncertainty in pmRACWarcsec/yrstat.error;pos.pm;pos.eq.rafloate_pmDECW[0/0.4] Uncertainty in pmDECWarcsec/yrstat.error;pos.pm;pos.eq.decfloatsnrw1pm[5/324] Flux S/N ratio in CatWISE2020 band-1; W1stat.snrfloatsnrw2pm[3/1840] Flux S/N ratio in CatWISE2020 band-2; W2stat.snrfloatW1mag[8/20.2] WPRO magnitude in band-1magphot.mag;em.IR.3-4umfloate_W1mag[0.003/0.3] Uncertainty in W1magmagstat.error;phot.magfloatW2mag[7/19.1] WPRO magnitude in band-2magphot.mag;em.IR.4-8umfloate_W2mag[0.001/0.4] Uncertainty in W2magmagstat.error;phot.magfloatchi2pmRA[0/2783] Chi-square for pmRACW differencestat.fit.chi2floatchi2pmDE[0/12790] Chi-square for pmDECW differencestat.fit.chi2doubleCExcess[-0.9/42] Corrected Excess factorarith.factorfloatfpm0[0/523] Probability density of zero proper motionstat.fit.goodnessfloatlogfpm0[-4/99] Logarithm of fpm0stat.fit.goodnessfloatpGal[0/0.5] Mean probability of object being a galaxystat.fit.goodnessfloatpQSO[0.3/1] Mean probability of object being a quasarstat.fit.goodnessfloatpstar[0/0.5] Mean probability of object being a starstat.fit.goodnessfloatzGaia[0/6.2] Redshift estimate from Gaia DR3 QSO candidate tablesrc.redshift;pos.heliocentricfloatzxgb[0/5] Photometric redshift predicted with XGBoostsrc.redshift.photfloatztab[0/10] Photometric redshift predicted with TabNetsrc.redshift.photfloatzftt[0/6] Photometric redshift predicted with FT-Transformersrc.redshift.photfloatzph[0.09/5.1] Ensemble photometric redshift (2)src.redshiftfloatzxp-nn[0/5] Spectral redshift predicted with RegNet using Gaia low-res spectroscopysrc.redshift;pos.heliocentricfloatGoodIndicator of PS1 photometry availability (3)meta.code.qualcharCATWISECatWISE2020 source identifier (objID)meta.id.crosscharindexed