Photometric redshifts in the EGOODS-North field

DOI

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.

Cone search capability for table J/ApJ/871/233/photz (*Photometric redshift (photo-z) catalog)

Identifier
DOI http://doi.org/10.26093/cds/vizier.18710233
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/ApJ/871/233
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/871/233
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/871/233
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/ApJ/871/233
Provenance
Creator Hsu L.-T.; Lin L.; Dickinson M.; Yan H.; Bau-Ching H.; Wang W.-H.,Lee C.-H.; Yan C.-H.; Scott D.; Willner S.P.; Ouchi M.; Ashby M.L.N.,Chen Y.-W.; Daddi E.; Elbaz D.; Fazio G.G.; Foucaud S.; Huang J.; Koo D.C.,Morrison G.; Owen F.; Pannella M.; Pope A.; Simard L.; Wang S.-Y.
Publisher CDS
Publication Year 2020
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Cosmology; Galactic and extragalactic Astronomy; High Energy Astrophysics; Natural Sciences; Observational Astronomy; Physics