Spectral energy distributions of AGNs Virtual Observatory Resource

Authors
  1. Brown M.J.I.
  2. Duncan K.J.
  3. Landt H.
  4. Kirk M.
  5. Ricci C.
  6. Kamraj N.,Salvato M.
  7. Ananna T.
  8. Published by
    CDS
Abstract

We present spectral energy distributions (SEDs) of 41 active galactic nuclei, derived from multiwavelength photometry and archival spectroscopy. All of the SEDs span at least 0.09 to 30{mu}m, but in some instances wavelength coverage extends into the X-ray, far-infrared, and radio. For some active galactic nuclei (AGNs) we have fitted the measured far-infrared photometry with greybody models, while radio flux density measurements have been approximated by power laws or polynomials. We have been able to fill some of the gaps in the spectral coverage using interpolation or extrapolation of simple models. In addition to the 41 individual AGN SEDs, we have produced 72 Seyfert SEDs by mixing SEDs of the central regions of Seyferts with galaxy SEDs. Relative to the literature, our templates have broader wavelength coverage and/or higher spectral resolution. We have tested the utility of our SEDs by using them to generate photometric redshifts for 0<z~<6.12 AGNs in the Bootes field (selected with X-ray, IR, and optical criteria) and, relative to SEDs from the literature, they produce comparable or better photometric redshifts with reduced flux density residuals.

Keywords
  1. active-galactic-nuclei
  2. seyfert-galaxies
  3. redshifted
  4. spectral-energy-distribution
  5. ultraviolet-astronomy
  6. visible-astronomy
  7. infrared-astronomy
  8. photometry
  9. spectroscopy
Bibliographic source Bibcode
2019MNRAS.489.3351B
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/489/3351
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/489/3351
Document Object Identifer DOI
doi:10.26093/cds/vizier.74893351

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/489/3351
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/489/3351
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/489/3351
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/489/3351/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/489/3351/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/489/3351/table1?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/489/3351/tablea1?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/489/3351/tablea1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/489/3351/tablea1?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/489/3351/tablea2?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/489/3351/tablea2?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/489/3351/tablea2?

History

2023-02-13T13:47:00Z
Resource record created
2023-02-13T13:47:00Z
Created
2024-08-20T20:12:54Z
Updated

Contact

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