Gravitational lens candidates models Virtual Observatory Resource

Authors
  1. Kung R.
  2. Saha P.
  3. Ferreras I.
  4. Baeten E.
  5. Coles J.
  6. Cornen C.,Macmillan C.
  7. Marshall P.
  8. More A.
  9. Oswald L.
  10. Verma A.
  11. Wilcox J.K.
  12. Published by
    CDS
Abstract

We report modelling follow-up of recently discovered gravitational-lens candidates in the Canada France Hawaii Telescope Legacy Survey. Lens modelling was done by a small group of specially interested volunteers from the Space Warps citizen-science community who originally found the candidate lenses. Models are categorized according to seven diagnostics indicating (a) the image morphology and how clear or indistinct it is, (b) whether the mass map and synthetic lensed image appear to be plausible, and (c) how the lens-model mass compares with the stellar mass and the abundance-matched halo mass. The lensing masses range from ~10^11^ to >10^13^M_{sun|_. Preliminary estimates of the stellar masses show a smaller spread in stellar mass (except for two lenses): a factor of a few below or above ~10^11^M_{sun}_. Therefore, we expect the stellar-to-total mass fraction to decline sharply as lensing mass increases. The most massive system with a convincing model is J1434+522 (SW 05). The two low-mass outliers are J0206-095 (SW 19) and J2217+015 (SW 42); if these two are indeed lenses, they probe an interesting regime of very low star formation efficiency. Some improvements to the modelling software (SpaghettiLens), and discussion of strategies regarding scaling to future surveys with more and frequent discoveries, are included.

Keywords
  1. gravitational-lensing
  2. astronomical-models
Bibliographic source Bibcode
2018MNRAS.474.3700K
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/474/3700
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/474/3700
Document Object Identifer DOI
doi:10.26093/cds/vizier.74743700

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/474/3700
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/474/3700
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/474/3700
IVOA Table Access TAP
http://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).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/474/3700/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/474/3700/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/474/3700/table1?

History

2021-04-15T08:24:11Z
Resource record created
2021-04-15T08:24:11Z
Created
2024-08-18T20:17:21Z
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