QSO Type1/Type2 dichotomy Virtual Observatory Resource

Authors
  1. Borguet B.
  2. Hutsemekers D.
  3. Letawe G.
  4. Letawe Y.
  5. Magain P.
  6. Published by
    CDS
Abstract

For Seyfert galaxies, the AGN unification model provides a simple and well-established explanation of the type 1/type 2 dichotomy through orientation-based effects. The generalization of this unification model to the higher luminosity AGNs that quasars are remains a key question. The recent detection of type 2 radio-quiet quasars seems to support such an extension. We propose a further test of this scenario. On the basis of a compilation of quasar host-galaxy position angles consisting of previously published data and of new measurements performed using HST Archive images, we investigate the possible existence of a correlation between the linear polarization position angle and the host-galaxy/extended emission position angle of quasars.

Keywords
  1. quasars
  2. polarimetry
  3. radio-sources
  4. galaxy-classification-systems
Bibliographic source Bibcode
2008A&A...478..321B
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/478/321
IVOA Identifier IVOID
ivo://CDS.VizieR/J/A+A/478/321
Document Object Identifer DOI
doi:10.26093/cds/vizier.34780321

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/478/321
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/478/321
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/478/321
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/A+A/478/321/table6?
https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/478/321/table6?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/478/321/table6?

History

2008-04-25T21:40:51Z
Resource record created
2008-04-25T21:40:51Z
Created
2017-10-18T08:25:00Z
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