Free-form lensing grid solution for A1689 Virtual Observatory Resource

Authors
  1. Diego J.M.
  2. Broadhurst T.
  3. Benitez N.
  4. Umetsu K.
  5. Coe D.
  6. Sendra I.,Sereno M.
  7. Izzo L.
  8. Covone G.
  9. Published by
    CDS
Abstract

We examine Abell 1689 non-parametrically, combining strongly lensed Hubble Space Telescope images and weak distortions from wider field Subaru imaging. Our model incorporates member galaxies to improve the lens solution. By adding luminosity-scaled member galaxy deflections to our smooth grid, we can derive meaningful solutions with sufficient accuracy to permit the identification of our own strongly lensed images, so our model becomes self-consistent. We identify 11 new multiply lensed system candidates and clarify previously ambiguous cases, in the deepest optical and near-infrared data to date from Hubble and Subaru. Our improved spatial resolution brings up new features not seen when the weak and strong lensing effects are used separately, including clumps and filamentary dark matter around the main halo. Our treatment means we can obtain an objective mass ratio between the cluster and galaxy components. We find a typical mass-to-light ratios of M/L_B_=21+/-14 inside the r<1arcmin region. Our model independence means we can objectively evaluate the competitiveness of stacking cluster lenses for defining the geometric lensing-distance-redshift relation in a model-independent way.

Keywords
  1. galaxy-clusters
  2. gravitational-lensing
  3. redshifted
Bibliographic source Bibcode
2015MNRAS.446..683D
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/446/683
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/446/683

Access

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http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/446/683
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/446/683
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/446/683
IVOA Table Access TAP
http://tapvizier.cds.unistra.fr/TAPVizieR/tap
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IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/446/683/tablea1?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/446/683/tablea1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/446/683/tablea1?

History

2018-03-12T11:06:13Z
Resource record created
2018-03-12T10:07:02Z
Updated
2018-03-12T11:06:13Z
Created

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