VLBI images of 2 binary AGN candidates Virtual Observatory Resource

Authors
  1. Bondi M.
  2. Perez-Torres M.A.
  3. Piconcelli E.
  4. Fu H.
  5. Published by
    CDS
Abstract

The sources SDSS J113126.08-020459.2 and SDSS J110851.04+065901.4 are two double-peaked [OIII] emitting AGN, identified as candidate binary AGNs by optical and near infrared (NIR) observations. We observed the two sources with high resolution Very Long Baseline Interferometry (VLBI) using the European VLBI Network at 5GHz, reduced VLA observations at three frequencies available for one of the sources, and used archival HST observations. For the source SDSS J113126.08-020459.2, the VLBI observations detected only one single compact component associated with the eastern NIR nucleus. In SDSS J110851.04+065901.4, the VLBI observations did not detect any compact components, but the VLA observations allowed us to identify a possible compact core in the region of the north-western optical/NIR nucleus. In this source we find kpc-scale extended radio emission that is spatially coincident to the ultraviolet continuum and to the extended emission narrow line region. The UV continuum is significantly obscured since the amount of extended radio emission yields a star formation rate of about 110M_{sun}_/yr, which is an order of magnitude larger than implied by the observed ultraviolet emission. Our analysis confirms the presence of only one AGN in the two candidate binary AGNs.

Keywords
  1. active-galactic-nuclei
  2. very-long-baseline-interferometry
Bibliographic source Bibcode
2016A&A...588A.102B
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/588/A102
IVOA Identifier IVOID
ivo://CDS.VizieR/J/A+A/588/A102
Document Object Identifer DOI
doi:10.26093/cds/vizier.35880102

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History

2016-03-24T08:39:54Z
Resource record created
2016-03-24T07:41:03Z
Updated
2016-03-24T08:39:54Z
Created

Contact

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