SDSS quasar lens search. II. J/AJ/135/496 ivo://CDS.VizieR/J/AJ/135/496 doi:10.26093/cds/vizier.51350496 CDS Inada N. Oguri M. Becker R.H. Shin M.-S. Richards G.T. Hennawi J.F.,White R.L. Pindor B. Strauss M.A. Kochanek C.S. Johnston D.E.,Gregg M.D. Kayo I. Eisenstein D. Hall P.B. Castander F.J.,Clocchiatti A. Anderson S.F. Schneider D.P. York D.G. Lupton R.,Chiu K. Kawano Y. Scranton R. Frieman J.A. Keeton C.R. Morokuma T.,Rix H.-W. Turner E.L. Burles S. Brunner R.J. Sheldon E.S.,Bahcall N.A. Masataka F. 2017-07-04T07:08:20Z 2010-07-24T15:22:04Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr quasars gravitational-lensing visible-astronomy sloan-photometry We report the first results of our systematic search for strongly lensed quasars using the spectroscopically confirmed quasars in the Sloan Digital Sky Survey (SDSS). Among 46420 quasars from the SDSS Data Release 3 (~4188deg^2^), we select a subsample of 22683 quasars that are located at redshifts between 0.6 and 2.2 and are brighter than the Galactic extinction-corrected i-band magnitude of 19.1. We identify 220 lens candidates from the quasar subsample, for which we conduct extensive and systematic follow-up observations in optical and near-infrared wavebands, in order to construct a complete lensed quasar sample at image separations between 1" and 20" and flux ratios of faint to bright lensed images larger than 10^-0.5^. We construct a statistical sample of 11 lensed quasars. Ten of these are galaxy-scale lenses with small image separations (~1"-2") and one is a large separation (15") system which is produced by a massive cluster of galaxies, representing the first statistical sample of lensed quasars including both galaxy- and cluster-scale lenses. The Data Release 3 spectroscopic quasars contain an additional 11 lensed quasars outside the statistical sample. 2008AJ....135..496I https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/135/496 Catalog Research IsServedBy TAP VizieR generic service IsPreviousVersionOf J/AJ/140/403 IsServedBy Conesearch service related-to II/294 : The SDSS Photometric Catalog, Release 7 (Adelman-McCarthy+, 2009) VII/243 : SDSS quasar catalog. III. (Schneider+, 2005) J/AJ/132/999 : SDSS quasar lens search (Oguri+, 2006) http://www.sdss.org/ : SDSS Home Page https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/135/496 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/135/496 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/135/496 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/135/496 https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/135/496 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/135/496 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/AJ/135/496/table3 (Color lens candidates) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/135/496/table3? https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/135/496/table3? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/135/496/table3? GET text/xml+votable 180.0 50000 true 11.9885417 14.7949722 0.005555555555555556 Cone search capability for table J/AJ/135/496/lens (Lensed quasars from the SDSS DR3: statistical sample and additional lensed quasars) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/135/496/lens? https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/135/496/lens? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/135/496/lens? GET text/xml+votable 180.0 50000 true 41.642125 -8.4267222 0.005555555555555556 Cone search capability for table J/AJ/135/496/table6 (Redshifts and Galactic extinction corrected i-band magnitudes of the 22683 quasars) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/135/496/table6? https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/135/496/table6? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/135/496/table6? GET text/xml+votable 180.0 50000 true 0.0385833 15.2984722 0.005555555555555556 3/95 101 112 116 153 184 427 428 4/256 257 258 260 302 315 318 319 351 358 359 361 362 363 366 367 370 371 373 374 375 376 377 378 389 391 400 401 402 408 409 412 413 452 453 455 456 469 512 583 589 591 600 602 620 622 623 624 693 695 696 698 700 702 703 705 707 708 709 712 713 715 716 718 740 744 745 746 1621 1622 1623 1626 1627 1628 1637 1638 1639 1641 1642 1644 1648 1685 1687 1691 1692 1694 1703 1707 1720 1962 5/136 138 1036 1056 1197 1198 1199 1212 1214 1215 1258 1259 1270 1403 1421 1423 1441 1443 1456 1458 1460 1461 1463 1475 1477 1478 1479 1488 1489 1490 1516 1517 1518 1541 1549 1552 1553 1560 1561 1563 1588 1589 1596 1597 1612 1614 1615 1640 1641 1644 1816 1817 1818 1828 1829 1830 1840 1841 1844 1845 1873 1875 1880 1881 1888 1889 2052 2056 2057 2271 2300 2302 2316 2318 2325 2327 2329 2331 2338 2344 2353 2355 2361 2363 2368 2370 2376 2378 2440 2465 2467 2471 2474 2477 2478 2479 2484 2485 2487 2504 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2.381800341673347e-19 2.821731604724377e-19 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/135/496?format=ascii Optical default J/AJ/135/496/table2 Morphological lens candidates recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int SDSS Object name (JHHMMSS.ss+DDMMSS.s) meta.id;meta.main char f_z [(] Indicates a redshift from follow-up observations meta.code char z ? Redshift (from the SDSS DR3 quasar catalog) src.redshift float nullable imag i-band PSF magnitudes with Galactic extinction correction from the SDSS DR3 quasar catalog. mag phot.mag;em.opt.I float theta ? Image separations between two components from the SDSS imaging data (1) arcsec pos.angDistance float nullable Dimag ? Magnitude differences ({Delta}i) between the expected two components, only in table2 (1) mag phot.mag;arith.diff float nullable Image Instruments (and filters) used for the follow-up imaging (2) meta.id;instr char Spec Instruments (and filters) used for the follow-up spectroscopy (2) meta.id;instr char Com Comments meta.note char r_SDSS References, in refs.dat file meta.ref;pos.frame char Simbad Simbad column added by the CDS meta.ref char
J/AJ/135/496/table3 Color lens candidates _RA Right ascension (derived from SDSS) for Eq=J2000 deg pos.eq.ra;meta.main _DE Declination (derived from SDSS) for Eq=J2000 deg pos.eq.dec;meta.main recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int SDSS Object name (JHHMMSS.ss+DDMMSS.s) meta.id;meta.main char f_z [(] Indicates a redshift from follow-up observations meta.code char z ? Redshift (from the SDSS DR3 quasar catalog) src.redshift float nullable imag i-band PSF magnitudes with Galactic extinction correction from the SDSS DR3 quasar catalog. mag phot.mag;em.opt.I float theta ? Image separations between two components from the SDSS imaging data (1) arcsec pos.angDistance float nullable Dimag ? Magnitude differences ({Delta}i) between the expected two components, only in table2 (1) mag phot.mag;arith.diff float nullable Image Instruments (and filters) used for the follow-up imaging (2) meta.id;instr char Spec Instruments (and filters) used for the follow-up spectroscopy (2) meta.id;instr char Com Comments meta.note char r_SDSS References, in refs.dat file meta.ref;pos.frame char Pair Display the pair of related quasars meta.ref.url char
J/AJ/135/496/lens Lensed quasars from the SDSS DR3: statistical sample and additional lensed quasars recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int n_Name Simbad column added by the CDS meta.id char Name Object designation (JHHMM+DDMM) meta.id;meta.main char Nimg Number of lenses meta.number int z Redshifts from follow-up observations src.redshift;pos.heliocentric float theta Maximum image separations arcsec pos.angDistance float fiI Flux ratios in the I- or i-band images (1) phot.flux.density;em.opt.I float Comm Comment meta.note char Reject Reason that each lens is excluded from the statistical sample (only for table 5) meta.note r_SDSS Reference(s); see refs.dat file meta.ref;pos.frame char SDSS SDSS name (JHHMMSS.ss+DDMMSS) (not part of the original data, added by CDS) (2) meta.id.assoc char Sloan Display the SDSS data for this quasar meta.ref.url char Simbad Simbad column added by the CDS meta.ref char _RA Right ascension (derived from SDSS) for Eq=J2000 deg pos.eq.ra;meta.main _DE Declination (derived from SDSS) for Eq=J2000 deg pos.eq.dec;meta.main
J/AJ/135/496/table6 Redshifts and Galactic extinction corrected i-band magnitudes of the 22683 quasars recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int SDSS Source identification (JHHMMSS.ss+DDMMSS.s) meta.id;meta.main char primary z Redshift src.redshift double imag Galactic extinction corrected i-band magnitude mag phot.mag;em.opt.I double L Simbad column added by the CDS meta.ref.url int nullable DR7 Display the SDSS photometry from SDSS-DR7 meta.ref.url char Sloan Display the SDSS data for this quasar meta.ref.url char _RA Right ascension (derived from SDSS) for Eq=J2000 deg pos.eq.ra;meta.main _DE Declination (derived from SDSS) for Eq=J2000 deg pos.eq.dec;meta.main
J/AJ/135/496/refs References recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int Ref Reference number meta.id;meta.main int Bibcode BibCode meta.bib.bibcode char Aut Author's name meta.bib.author char Com Comments meta.note char