TANAMI II. Additional sources Virtual Observatory Resource

Authors
  1. Mueller C.
  2. Kadler M.
  3. Ojha R.
  4. Schulz R.
  5. Truestedt J.
  6. Edwards P.G.,Ros E.
  7. Carpenter B.
  8. Angioni R.
  9. Blanchard J.
  10. Boeck M.
  11. Burd P.R.,Doerr M.
  12. Dutka M.S.
  13. Eberl T.
  14. Gulyaev S.
  15. Hase H.
  16. Horiuchi S.,Katz U.
  17. Krauss F.
  18. Lovell J.E.J.
  19. Natusch T.
  20. Nesci R.
  21. Phillips C.,Ploetz C.
  22. Pursimo T.
  23. Quick J.F.H.
  24. Stevens J.
  25. Thompson D.J.,Tingay S.J.
  26. Tzioumis A.K.
  27. Weston S.
  28. Wilms J.
  29. Zensus J.A.
  30. Published by
    CDS
Abstract

TANAMI is a multiwavelength program monitoring active galactic nuclei (AGN) south of -30{deg} declination including high-resolution Very Long Baseline Interferometry (VLBI) imaging, radio, optical/UV, X-ray and {gamma}-ray studies. We have previously published first-epoch 8.4GHz VLBI images of the parsec-scale structure of the initial sample. In this paper, we present images of 39 additional sources. The full sample comprises most of the radio- and {gamma}-ray brightest AGN in the southern quarter of the sky, overlapping with the region from which high-energy (>100TeV) neutrino events have been found. We characterize the parsec-scale radio properties of the jets and compare with the quasi-simultaneous Fermi/LAT {gamma}-ray data. Furthermore, we study the jet properties of sources which are in positional coincidence with high-energy neutrino events as compared to the full sample. We test the positional agreement of high-energy neutrino events with various AGN samples. TANAMI VLBI observations at 8.4GHz are made with Southern-Hemisphere radio telescopes located in Australia, Antarctica, Chile, New Zealand, and South Africa. Our observations yield the first images of many jets below -30{deg} declination at milliarcsecond resolution. We find that {gamma}-ray loud TANAMI sources tend to be more compact on parsec-scales and have higher core brightness temperatures than {gamma}-ray faint jets, indicating higher Doppler factors. No significant structural difference is found between sources in positional coincidence with high-energy neutrino events and other TANAMI jets. The 22 {gamma}-ray brightest AGN in the TANAMI sky show only a weak positional agreement with high-energy neutrinos demonstrating that the >100TeV IceCube signal is not simply dominated by a small number of the {gamma}-ray brightest blazars. Instead, a larger number of sources have to contribute to the signal with each individual source having only a small Poisson probability for producing an event in multi-year integrations of current neutrino detectors.

Keywords
  1. active-galactic-nuclei
  2. very-long-baseline-interferometry
Bibliographic source Bibcode
2018A&A...610A...1M
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/610/A1
IVOA Identifier IVOID
ivo://CDS.VizieR/J/A+A/610/A1
Document Object Identifer DOI
doi:10.26093/cds/vizier.36100001

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/610/A1
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/610/A1
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/610/A1
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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/A+A/610/A1/list?
https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/610/A1/list?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/610/A1/list?

History

2018-02-07T08:52:35Z
Resource record created
2018-02-07T08:52:35Z
Created
2020-10-30T14:50:38Z
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