J/ApJS/243/17ivo://CDS.VizieR/J/ApJS/243/17doi:10.26093/cds/vizier.22430017CDSJacobs C.Collett T.Glazebrook K.Buckley-Geer E.Diehl H.T.Lin H.,McCarthy C.Qin A.K.Odden C.Escudero M.C.Dial P.Yung V.J.,Gaitsch S.Pellico A.Lindgren K.A.Abbott T.M.C.Annis J.Avila S.,Brooks D.Burke D.L.Rosell A.C.Kind M.C.Carretero J.da Costa L.N.,De Vicente J.Fosalba P.Frieman J.Garcia-Bellido J.Gaztanaga E.,Goldstein D.A.Gruen D.Gruendl R.A.Gschwend J.Hollowood D.L.,Honscheid K.Hoyle B.James D.J.Krause E.Kuropatkin N.Lahav O.,Lima M.Maia M.A.G.Marshall J.L.Miquel R.Plazas A.A.Roodman A.,Sanchez E.Scarpine V.Serrano S.Sevilla-Noarbe I.Smith M.,Sobreira F.Suchyta E.Swanson M.E.C.Tarle G.Vikram V.Walker A.R.,Zhang Y.2021-08-18T09:30:09Z2020-02-10T08:11:28ZCDS support team

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

cds-question@unistra.frgravitational-lensingsurveysredshiftedinfrared-photometryvisible-astronomyphotometryWe search Dark Energy Survey (DES) Year 3 imaging for galaxy-galaxy strong gravitational lenses using convolutional neural networks, extending previous work with new training sets and covering a wider range of redshifts and colors. We train two neural networks using images of simulated lenses, then use them to score postage-stamp images of 7.9 million sources from DES chosen to have plausible lens colors based on simulations. We examine 1175 of the highest-scored candidates and identify 152 probable or definite lenses. Examining an additional 20000 images with lower scores, we identify a further 247 probable or definite candidates. After including 86 candidates discovered in earlier searches using neural networks and 26 candidates discovered through visual inspection of blue-near-red objects in the DES catalog, we present a catalog of 511 lens candidates.2019ApJS..243...17Jhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/243/17CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/110 : Rich Clusters of Galaxies (Abell+ 1989)II/344 : KiDS-ESO-DR2 multi-band source catalog (de Jong+, 2015)II/357 : The Dark Energy Survey (DES): Data Release 1 (Abbott+, 2018)J/ApJ/690/1236 : COSMOS photometric redshift catalog (Ilbert+, 2009)J/ApJS/191/340 : Southern Cosmology Survey. II. (Menanteau+, 2010)J/ApJ/742/48 : Blanco survey of the lens BCS J2352-5452 (Buckley-Geer+, 2011)J/ApJ/749/38 : CFHTLS-SL2S-ARCS strong lens candidates (More+, 2012)J/ApJS/199/25 : CLASH sources for MACS1149.6+2223 (Postman+, 2012)J/ApJ/785/144 : SL2S galaxy-scale sample of lens candidates (Gavazzi+, 2014)J/ApJ/785/104 : redMaPPer. I. Algorithm applied to SDSS DR8 (Rykoff+, 2014)J/ApJS/216/20 : Blanco Cosmology Survey (BCS) new reduction (Bleem+, 2015)J/ApJS/216/27 : Galaxy clusters discovered in the SPT-SZ survey (Bleem+, 2015)J/ApJS/227/3 : Full spectroscopic release of the SPT-GMOS (Bayliss+, 2016)J/ApJS/232/15 : Candidate strong lens systems from DES obs. (Diehl+, 2017)http://des.ncsa.illinois.edu/releases/dr1/ : Dark Energy Survey (DES) home pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/243/17https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/243/17http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/243/17https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/243/17https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/243/17http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/243/17GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/243/17/table1 (Strong lens candidates from visual inspection of the neural network-selected sources)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/243/17/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/243/17/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/243/17/table1?GETtext/xml+votable180.050000true0.59845-35.121220.005555555555555556Cone search capability for table J/ApJS/243/17/table5 (*Possible strong lens systems selected by convolutional neural network (CNN))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/243/17/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/243/17/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/243/17/table5?GETtext/xml+votable180.050000true0.6235833-52.48886110.0055555555555555565/8470 6/16389 16390 16393 16410 16433 16448 16449 16453 16459 16461 16471 16484 16502 16509 16510 16641 16655 16659 16660 16665 16669 16671 16673 16675 16681 16684 16686 16705 16707 16714 16715 16726 16731 16733 16739 16751 16766 16833 16836 16852 17270 17279 17363 17369 17373 17412 17419 17420 17423 17424 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46322 46323 46339 46342 46347 46361 46363 46371 46378 46381 46383 46387 46390 46391 46408 46409 46411 46421 46425 46431 46436 46444 46449 46467 46468 46471 46474 46476 46484 46490 46503 46504 46507 46509 46512 46594 46599 46616 46618 46619 46622 46630 46635 46644 46648 46655 46657 46659 46660 46661 46663 46674 46675 46682 46683 46689 46690 46695 46726 46734 46735 46738 46740 46741 46746 46750 46769 47381 47425 47428 47433 47435 47444 47448 47456 47457 47459 47463https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/243/17?format=asciiOpticalInfrareddefaultJ/ApJS/243/17/table1Strong lens candidates from visual inspection of the neural network-selected sourcesSimbadNameSimbad column added by the CDSmeta.idcharGrade[2/3] Grademeta.code.qualfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCandCandidate identifier (DESJHHMM+DDMM)meta.id;meta.maincharobjID[61748499/508636686] Object ID, DES Y3A1 coadd object tablesmeta.idlongRAJ2000Right Ascension, decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination, decimal degrees (J2000)degpos.eq.dec;meta.mainz[0.04/1.6] Redshift (1)src.redshiftfloatimag[15.6/21] DES Y3A1 catalog i band magnitudemagphot.mag;em.opt.IfloatNotesNote(s) (2)meta.notecharr_zReference(s) for spectroscopic redshifts (3)meta.ref;pos.framecharJ/ApJS/243/17/table5*Possible strong lens systems selected by convolutional neural network (CNN)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintobjID[61622068/508867520] Object ID, DES Y3A1 coadd object tablesmeta.idlongRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainNotesSources previously flagged as potential lens (1)meta.notechar