Strong-lens candidates from HSC-SSP PDR2J/A+A/662/A4ivo://CDS.VizieR/J/A+A/662/A4doi:10.26093/cds/vizier.36620004CDSShu Y.Canameras R.Schuldt S.Suyu S.H.Taubenberger S.Inoue K.T.,Jaelani A.T.2022-10-14T13:56:33Z2022-05-25T12:36:43ZCDS support teamCDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, Francecds-question@unistra.frgravitational-lensingsurveysredshiftedinfrared-photometryvisible-astronomybroad-band-photometryWe carry out a search for strong-lens systems containing high-redshift lens galaxies with the goal of extending strong-lensing-assisted galaxy evolutionary studies to earlier cosmic time. Two strong-lens classifiers are constructed from a deep residual network and trained with datasets of different lens-redshift and brightness distributions. We classify a sample of 5356628 pre-selected objects from the Wide-layer fields in the second public data release of the Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP) by applying the two classifiers to their HSC gri-filter cutouts. Cutting off at thresholds that correspond to a false-positive rate of 10^-3^ on our test set, the two classifiers identify 5,468 and 6,119 strong-lens candidates. Visually inspecting the cutouts of those candidates results in 735 grade-A or B strong-lens candidates in total, of which 277 candidates are discovered for the first time. This is the single largest set of galaxy-scale strong-lens candidates discovered with HSC data to date, and nearly half of it (331/735) contains lens galaxies with photometric redshifts above 0.6. Our discoveries will serve as a valuable target list for ongoing and scheduled spectroscopic surveys such as the Dark Energy Spectroscopic Instrument, the Subaru Prime Focus Spectrograph project, and the Maunakea Spectroscopic Explorer.2022A&A...662A...4Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/662/A4CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/644/A163 : Pan-STARRS lens candidates from neural networksJ/A+A/653/L6 : HSC-SSP lens candidates from neural networkshttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/662/A4https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/662/A4http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/662/A4https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/662/A4https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/662/A4http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/662/A4GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/662/A4/tableb1 (Grade-A strong-lens candidates)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/662/A4/tableb1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/662/A4/tableb1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/662/A4/tableb1?GETtext/xml+votable180.050000true2.203330.264120.005555555555555556Cone search capability for table J/A+A/662/A4/tableb2 (Grade-B strong-lens candidates)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/662/A4/tableb2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/662/A4/tableb2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/662/A4/tableb2?GETtext/xml+votable180.050000true0.078840.271580.0055555555555555565/2459 4423 4428-4430 4432 4698 4714 4757 4801 4803 5460 5462 6399 6486 6488 6490 6512 6568 6741 6822 6824 9199 10239 6/4096 4098 4100 4102 4106 4111-4113 4115-4117 4120 8192 8194-8195 8200 9643-9644 9646 9815 9819 9822 9831 9833-9835 9840-9841 9848 9879 9884-9885 9897 9899 9901 9903-9905 9912 9921-9922 9984 9986-9987 10583 10587 10589 10605-10606 10609-10610 10612 10689 10692 11264 11266-11267 11272 11424 17407 17527 17533 17535 17671 17675-17677 17681-17682 17684 17686 17690-17691 17696 17699 17702-17706 17709-17711 17724 17727 17736-17737 17739-17740 17742 17760 17762 17792-17793 17798-17799 17805 17808 17816 17999 18003-18006 18008 18010-18011 18015 18032-18033 18035 18037 18089 18091-18094 18176 18687 18749-18751 18759 18773-18777 18780 18782-18783 18785-18787 18790-18791 18796 18798 18800-18801 18804 18806 18808-18810 18830 18837-18838 18844 18850 18853-18854 18861-18862 18866-18867 18869 18873-18874 18877-18880 18883-18884 18888 18890 19032-19033 19035 19037-19039 19059 19065 19071 19157 19200-19202 19210 19216 19219 19223-19224 19229 19236 19238 19240 19243 19245 19264 19266 19456-19458 19460 19462 19464-19466 21829 21836-21837 21839 21844-21845 21847 21852-21853 21872-21873 21875-21876 21878 25591 25594-25595 25914-25915 25917-25919 25931-25932 25934-25935 25937 25939-25942 25949 25956-25958 25964 25966-25969 25976 25989 25995 25997-26002 26004 26006-26009 26011-26013 26016-26017 26020-26022 26028-26029 26032-26034 26036 26052 26054 26056 26171-26172 26175 26217-26219 26222 26252-26253 26255 26257 26259-26260 26262 26266-26267 26269-26270 26278 26280 26282-26284 26286-26288 26290-26292 26312 26957 26959 26961 26963 26968-26969 26971-26974 26992 27196-27197 27210 27213-27214 27219 27225 27235 27240 27242 27244-27245 27248 27250-27251 27256 27259-27260 27262 27271 27277-27280 27282-27283 27285-27286 27294 27302-27305 27307-27310 27312 27316 27321 27324 27326-27327 27330 27332-27333 27335 27345 27648 27650 27656 31402 36795 36842 40955 45051-45052 45055https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/662/A4?format=asciiOpticalInfrareddefault
J/A+A/662/A4/tableb1Grade-A strong-lens candidatesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSystem name, HSCJHHMMSS+DDMMSSmeta.id;meta.maincharRAJ2000Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainimagHSC-reported i-band CModel magnitude (AB) of the lens galaxymagphot.mag;em.opt.IfloatzdpHSC-reported photometric redshift of the lens galaxysrc.redshift.photfloate_zdpHSC-reported photometric redshift error of the lens galaxystat.errorfloatzds? Spectroscopic redshift of the lens galaxy (1)src.redshift;pos.heliocentricfloatnullablezss? Spectroscopic redshift of the source galaxy (1)src.redshift;pos.heliocentricfloatnullableClassClassifier(s) that finds the systemsrc.classcharScoreAverage visual inspection scoremeta.code.qualfloatRefPaper that first discovered this system (2)meta.bibchar
J/A+A/662/A4/tableb2Grade-B strong-lens candidatesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSystem name, HSCJHHMMSS+DDMMSSmeta.id;meta.maincharRAJ2000Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainimagHSC-reported i-band CModel magnitude (AB) of the lens galaxymagphot.mag;em.opt.IfloatzdpHSC-reported photometric redshift of the lens galaxysrc.redshift.photfloate_zdpHSC-reported photometric redshift error of the lens galaxystat.errorfloatzds? Spectroscopic redshift of the lens galaxy (1)src.redshift;pos.heliocentricfloatnullablezss? Spectroscopic redshift of the source galaxy (1)src.redshift;pos.heliocentricfloatnullableClassClassifier(s) that finds the systemsrc.classcharScoreAverage visual inspection scoremeta.code.qualfloatRefPaper that first discovered this system (2)meta.bibchar