SDSS quasar lens search Virtual Observatory Resource

Authors
  1. Oguri M.
  2. Inada N.
  3. Pindor B.
  4. Strauss M.A.
  5. Richards G.T.
  6. Hennawi J.F.,Turner E.L.
  7. Lupton R.H.
  8. Schneider D.P.
  9. Fukugita M.
  10. Brinkmann J.
  11. Published by
    CDS
Abstract

We present an algorithm for selecting a uniform sample of gravitationally lensed quasar candidates from low-redshift (0.6<z<2.2) quasars brighter than i=19.1 that have been spectroscopically identified in the Sloan Digital Sky Survey (SDSS). Our algorithm uses morphological and color selections that are intended to identify small- and large-separation lenses, respectively. Our selection algorithm only relies on parameters that the SDSS standard image processing pipeline generates, allowing easy and fast selection of lens candidates. The algorithm has been tested against simulated SDSS images, which adopt distributions of field and quasar parameters taken from the real SDSS data as input. Furthermore, we take differential reddening into account. We find that our selection algorithm is almost complete down to separations of 1" and flux ratios of 10^-0.5^.

Keywords
  1. quasars
  2. gravitational-lensing
Bibliographic source Bibcode
2006AJ....132..999O
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/132/999
IVOA Identifier IVOID
ivo://CDS.VizieR/J/AJ/132/999
Document Object Identifer DOI
doi:10.26093/cds/vizier.51320999

Access

Web browser access HTML
https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/132/999
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/132/999
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/132/999
IVOA Table Access TAP
https://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/132/999/table2?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/132/999/table2?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/132/999/table2?

History

2008-07-09T09:28:16Z
Resource record created
2008-07-09T09:28:16Z
Created
2017-10-12T13:00:06Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr