J/ApJ/909/27ivo://CDS.VizieR/J/ApJ/909/27doi:10.26093/cds/vizier.19090027CDSHuang X.Storfer C.Gu A.Ravi V.Pilon A.Sheu W.Venguswamy R.,Banka S.Dey A.Landriau M.Lang D.Meisner A.Moustakas J.,Myers A.D.Sajith R.Schlafly E.F.Schlegel D.J.2022-10-14T13:45:55Z2022-08-19T08:32:08ZCDS support team

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

cds-question@unistra.frgravitational-lensingsurveysredshiftedinfrared-photometryvisible-astronomybroad-band-photometryWe have conducted a search for new strong gravitational lensing systems in the Dark Energy Spectroscopic Instrument Legacy Imaging Surveys' Data Release 8. We use deep residual neural networks, building on previous work presented by Huang+ (2020 J/ApJ/894/78). These surveys together cover approximately one-third of the sky visible from the Northern Hemisphere, reaching a z-band AB magnitude of ~22.5. We compile a training sample that consists of known lensing systems as well as non-lenses in the Legacy Surveys and the Dark Energy Survey. After applying our trained neural networks to the survey data, we visually inspect and rank images with probabilities above a threshold. Here we present 1210 new strong lens candidates.2021ApJ...909...27Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/909/27CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/682/964 : Sloan lens ACS survey. V. (Bolton+, 2008)J/ApJ/834/210 : Sp. of strong lensing galaxy clusters (Carrasco+, 2017)J/ApJS/232/15 : Candidate strong lens systems from DES obs. (Diehl+, 2017)J/ApJ/851/48 : SLACS. XIII. Galaxy-scale strong lens cand. (Shu+, 2017)J/ApJ/856/68 : COSMOS lens candidates with LensFlow (Pourrahmani+, 2018)J/ApJ/867/107 : SuGOHI. II. Lenses from HSC SSP DR2 & env. (Wong+, 2018)J/MNRAS/484/5330 : High-z strong lens candidates from DES (Jacobs+, 2019)J/ApJS/243/17 : Strong DES lens cand. from neural networks (Jacobs+, 2019)J/ApJ/876/85 : HST observations for LMC Cepheids (Riess+, 2019)J/ApJ/894/78 : Strong gravitational lenses from DECaLS (Huang+, 2020)http://www.legacysurvey.org/ : DESI Legacy Imaging Surveys home pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/909/27https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/909/27http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/909/27https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/909/27https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/909/27http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/909/27GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/909/27/cand (Gravitational lens candidates)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/909/27/cand?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/909/27/cand?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/909/27/cand?GETtext/xml+votable180.050000true2.029918.37230.0055555555555555566/0 13 15 32 34 163 173 250 527 553 617 621 695 697 699 704-705 747 756 931 2053 2058 2121 2133 2136 2156 2185 2192 2199 4147 4149 4167 4251 4278 4280 4323 4345 4366-4367 4375 4385 4458 4490 4497-4498 4507 4611 4712 4785 4840 4857 4873-4874 4880 4897 4900 4902 4920 4960 4965 4998 5019 5040 5072 5080 5120 5140 5190 5195 5229 5234 5242 5301 5313 5333 5341 5373 5406 5432 5455 5489 5531 5586 5624 5650 5689 5695 5733 5747-5748 5761 5803 5840 5890 5894 5899 5906 5968 6052 6065 6086 6103 6148 6209 6216 6234 6257 6267 6269 6285 6288 6293 6330 6338 6355 6360 6367 6387 6401 6411 6447 6479 6481 6549 6558 6600 6661 6683 6730 6733 6748 6777 6869 6899 6926 6937 6942 6962 6980 6985 6993 6998 7008 7033 7138 7174 7273 7312 7338 7388 7391 7496 7502 7516 7582 7584 7633 7637 7799 7964 7982-7983 8004-8005 8082 8219-8220 8223 8225 8233-8234 8269 8293 8295 8300 8304 8311 8326 8328 8406 8426 8432 8439 8448 8456 8479 8485-8486 8499 8504 8526 8542 8621-8622 8655 8691 8711 8725 8804 8811 8819 8821 8829 8837 8858 8890 8910 8913 8994 9015 9033 9065 9081 9088 9102-9103 9205 9224 9271 9283 9292 9298 9326 9328 9332 9419 9480 9490 9512 9554 9557 9566 9619 9736 9743 9790 9840 9882 9898 9924 9927 9957 9998 10027 10135 10148 10150 10267 10340 10354-10355 10366 10371 10395 10463 10488 10554 10618 10633 10664-10665 10754 10801 10920 10933 10943 10950 11005 11027 11081 11089 11132 11166 11233 11303 11324 11330 11332 11396 11401 11425 11467 11496 11507 11509 11566 11594 11624 11692 11745 11805 11962 11965 12023 12036 12039 12099 12176 12181 12228 12294 12325 12378 12436 12568 12575 12638 12681 12736 12756 13343 13370 13396 13409 14969 14990 15013 15053 15059 15082 15166 15205 15217 15258 15264 15276 15285 15904 15909 15916 16026 16064 16072 16076 16119 16409 16412 16458 16462 16465-16466 16486 16497 16500 16502 16508 16652 16658-16659 16662-16663 16665 16669 16676 16680-16681 16690 16695-16696 16702 16711 16714-16715 16728 16740-16741 16746 16748-16749 16754 16761 16767 16787 16833 16836 16846 16848 16850 16852 16855-16856 16860-16861 16876 16891 16895 17109-17110 17115 17133 17142 17144 17146 17181 17195 17197 17202 17207 17213 17221 17237 17252 17255 17269 17300 17315-17316 17336 17362 17364 17388 17392 17404 17408 17412-17414 17421 17423 17432 17450 17460 17476 17479 17481 17483-17484 17487 17490 17502 17504 17506 17518 17521-17522 17552 17556 17565 17577 17585-17586 17590 17593 17606 17608-17609 17611 17635 17651 17654 17677-17678 17689 17696 17704 17718 17722 17727 17729-17730 17733 17739 17749-17750 17752 17792 17798 17803 17805 17809-17810 17812-17813 17829 17835 17837 17852 17861 17863-17864 17868 17883 17890 17892 17894 17928 17931 17934 17937 17941-17942 17962-17963 17988 18005-18006 18009 18028 18034 18047-18048 18053 18060 18064 18067 18078 18092 18094 18097 18109 18122 18139 18141 18152 18171 18189 18198 18202 18204 18206 18240 18250 18279 18297 18328 18353 18385 18396 18408 18478 18485 18490 18517 18576 18588 18649 18690 18710 18738 18746 18749 18754 18761 18771 18777 18789-18790 18792 18800 18816 18819 18821 18827 18830 18837 18855 18857 18872 18877 18917 18919 18923 19023 19037 19048 19064 19083 19098 19106 19108 19123 19152 19167 19201 19216 19241 19255 19283 19317 19347 19367 19440 19442 19458 19465 19468 19483 19495 19536 19547 19551 19593 19630 19689 19700 19729 19809 19823 19874-19875 19966 19974 19981 19994 20046 20049 20076 20103 20107 20133 20135 20149 20195 20218-20219 20227 20246 20266 20278 20344 20378 20481 20506 20515 20532 20543 20615 20622 20627 20631 20636 20639 20647 20655 20659 20661 20663 20665 20674 20681 20707 20710 20713 20716 20728 20995 21003 21008 21012 21017 21019 21024-21025 21030 21033-21034 21041 21051-21052 21063 21065 21068 21090 21092 21100 21102 21124 21130 21132 21147 21150 21156-21157 21162 21164 21168 21819 21831 21840 21842 21911 21954 21977 22374 22384 22387 22390-22391 22495 22570 22578 22583 22607 22627 22636 22643 22648 22673 22678 22696 22698 22706 22713 22717 22728 22736 22741 22745 22776 22827 22830 22920 22926 22936 23044 23076 23078 23093 23105 23111 23121 23188 23192 23195 23225 25453 25462 25548 25551 25570 25590 25707 25724 25757 25791 25883 25899 25933 25937 25979 26004 26017 26045 26065 26207 26210 26272 26290 26294 26308 26311 26318-26319 26323 26359 26387 26401 26406 26422 26424 26428 26449 26552 26565 26602 26716 26727 26732 26737 26745 26803 26813 26815 26828 26831 26860 26914 26929 26950-26951 26957 27016 27026-27027 27052 27055 27101 27108 27130 27135 27139 27168 27190 27196 27237 27263 27287 27310 27321 27383 27417 27453 27457 27482 27486 27506 27547 27554 27566 27570 27591 27593 27647 27739 27793 27813 27832 27853 27876 27882 27915 27939 27967 28003 28028 28058 28089 28095 28099 28135 28143 28153-28154 28165 28186-28187 28211 28223-28224 28231 28233 28245 28250 28275 28279 28285 28292 28318 28323 28336 28343 28386 28408 28424 28430 28462 28482 28487 28512 28514 28521 28530 28563 28571 28600 30066 30071 30972 31161 31359 31375 31389 31449 31466 31476 31481 31496 31568-31569 31589 31608 31616 31618 31626 31639 32260 32266 32272 32431 32443 32461 32466 32474 32493 32509 32547 32575 32643 32645 32721 32730 33454 33469 33495 33915 34117 34219 34278 34295 34303 34463 34504 34515 34547 34558-34559 34571 34593 34603 34613 34621 34642 34644 34648 34650 34656 34660 34663 34669-34670 34679 34685 34699-34701 34707 34710 34713 34715 34717 34723 34729 34744 34746-34747 34750 34752 34757 34760 34762 34765 34768 34776-34777 34782 34785 34787 34796-34797 34806-34808 34810 34833 34840 34852 34857-34858 34948 34986 35000 35004 35246 35256 35271 35285 35287 35298 35301 35331 35454 35468 35507 35529 35556 35566 35569 35574 35598 35639 35643 35655 35663 35665 35667-35668 35676 35685 35688 35693-35694 35696 35698 35700-35701 35706-35709 35726 35733 35737 35750-35751 35756 35777 35781 35793 35795 35797 35807 35816 35823 35835 35843 35888 35893 35911 35925-35926 35929 35940 35942-35943 35945 35947 35950 35954-35955 35958 35961-35963 35965 35980 35982-35983 35991 35998-36001 36012 36022 36034 36036 36044 36057 36062 36072 36074 36081-36083 36089 36095 36098 36103-36105 36108-36109 36128 36132 36134 36136 36149-36150 36156-36157 36161-36163 36168-36169 36171 36177 36179 36184 36186-36188 36199-36201 36204 36215 36217 36222-36223 36231 36233 36235-36236 36238 36241 36243 36245 36251 36254 36256 36270 36278 36280 36300 36308-36309 36312 36321 36327 36333 36337-36338 36344 36350 36352 36355-36356 36358-36359 36362 36367 36371 36375 36378 36380 36382 36386 36388 36390 36395 36399 36403-36404 36410 36414 36423 36428 36440 36444 36449 36469 36472-36474 36477 36481 36488 36492 36497 36502 36507 36509 36514-36515 36518 36523 36528 36530-36531 36537 36540-36541 36548 36550 36552 36555 36560 36565 36570 36576 36595 36607 36617 36619 36624 36631 36633 36635 36653 36655-36656 36664 36666 36669 36671 36678 36685 36697 36710 36719 36729 36748 36757 36778 36797 36803 36807 36826 36834 36836 36839 44959 44985 44994 45003 45021 45024 45049 45491 45502 45829 46087 46100 46103 46121 46127 46153 46232 46647 46652 46655 46657 46683 47424 47447 48974 49042 49047 490791.9810291497828372e-19 4.973527819473193e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/909/27?format=asciiOpticalInfrareddefaultJ/ApJ/909/27/candGravitational lens candidatesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintQ[ABC] Grade of the lens candidate (A=high level of confidence, 216 occurrences)meta.code.qualcharImg[1/1312] Cutout image numbermeta.idintNameName of the system (DESI-DDD.dddd+DD.dddd; J2000)meta.id;meta.maincharTypeTractor Type ("DC" or "REX"=round exponential galaxy model) (1)meta.codecharScore[2/4] Human inspection average scoremeta.code.qualfloatdelSc[0/2] Score absolute differencemeta.code.qualintProb[0.08/1] ResNet probabilitystat.probabilityfloatzsp[0.1/0.9]? Spectroscopic redshift (SDSS DR16)src.redshiftfloatnullablezph[0.07/1.03]? Photometric redshift from Zhou+ 2021MNRAS.501.3309Zsrc.redshiftfloatnullablee_zph[0.005/0.4]? zph uncertaintystat.errorfloatnullableModResNet Model ("L18" or "shielded") (2)stat.param;meta.modelledcharRef[a-m, ] Reference(s) (3)meta.ref;pos.framechargmag[16.6/25.4] CTIO/DECam g-band magnitudephot.mag;em.opt.Bfloatrmag[15.5/23.5] CTIO/DECam r-band magnitudephot.mag;em.opt.Rfloatzmag[14.7/21.7] CTIO/DECam z-band magnitudephot.mag;em.opt.IfloatSurveyRegion of the footprint ("DECaLS" or "MzLS")meta.idcharSloanDisplay the online SDSS-DR16 data for the nearest objectmeta.ref.urlchar_RAPositions from names (right ascension part)degpos.eq.ra;meta.main_DEPositions from names (declination part)degpos.eq.dec;meta.main