Photometric redshifts in the EGOODS-North field Virtual Observatory Resource

Authors
  1. Hsu L.-T.
  2. Lin L.
  3. Dickinson M.
  4. Yan H.
  5. Bau-Ching H.
  6. Wang W.-H.,Lee C.-H.
  7. Yan C.-H.
  8. Scott D.
  9. Willner S.P.
  10. Ouchi M.
  11. Ashby M.L.N.,Chen Y.-W.
  12. Daddi E.
  13. Elbaz D.
  14. Fazio G.G.
  15. Foucaud S.
  16. Huang J.
  17. Koo D.C.,Morrison G.
  18. Owen F.
  19. Pannella M.
  20. Pope A.
  21. Simard L.
  22. Wang S.-Y.
  23. Published by
    CDS
Abstract

We present deep J- and H-band images in the extended Great Observatories Origins Deep Survey-North field covering an area of 0.22deg^2^. The observations were taken using WIRCam on the 3.6m Canada-France-Hawaii Telescope. Together with the reprocessed Ks-band image, the 5{sigma} limiting AB magnitudes (in 2" diameter apertures) are 24.7, 24.2, and 24.4 AB mag in the J, H, and Ks bands, respectively. We also release a multiband photometry and photometric redshift catalog containing 93598 sources. For non-X-ray sources, we obtained a photometric redshift accuracy {sigma}_NMAD_=0.036 with an outlier fraction {eta}=7.3%. For X-ray sources, which are mainly active galactic nuclei (AGNs), we cross-matched our catalog with the updated 2M-CDFN X-ray catalog from Xue+ (2016, J/ApJS/224/15) and found that 658 out of 683 X-ray sources have counterparts. GALEX UV data are included in the photometric redshift computation for the X-ray sources to give {sigma}_NMAD_=0.040 with {eta}=10.5%. Our approach yields more accurate photometric redshift estimates compared to previous works in this field. In particular, by adopting AGN-galaxy hybrid templates, our approach delivers photometric redshifts for the X-ray counterparts with fewer outliers compared to the 3D-Hubble Space Telescope catalog, which fit these sources with galaxy-only templates.

Keywords
  1. active-galactic-nuclei
  2. infrared-sources
  3. redshifted
  4. ultraviolet-photometry
  5. infrared-photometry
  6. visible-astronomy
  7. Wide-band photometry
  8. astronomical-object-identification
Bibliographic source Bibcode
2019ApJ...871..233H
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/871/233
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJ/871/233
Document Object Identifer DOI
doi:10.26093/cds/vizier.18710233

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/871/233
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/871/233
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/871/233
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/ApJ/871/233/photz?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/871/233/photz?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/871/233/photz?

History

2020-08-28T10:45:13Z
Resource record created
2020-08-28T10:45:13Z
Created
2021-02-17T16:07:52Z
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