Photometric Redshifts in the Hawaii-Hubble Deep Field-North

G. Yang, Y. Q. Xue, B. Luo, W. N. Brandt, D. M. Alexander, F. E. Bauer, W. Cui, X. Kong, B. D. Lehmer, J. X. Wang, X. B. Wu, F. Yuan, Y. F. Yuan, H. Y. Zhou

Research output: Contribution to journalArticlepeer-review


We derive z phot for sources in the entire (∼0.4 deg2) H-HDF-N field with the EAzY code, based on PSF-matched broad-band (U band to IRAC 4.5 μm) photometry. Our catalog consists of a total of 131,678 sources. We find σNMAD = 0.029 for non-X-ray sources. We also classify each object as a star or galaxy through SED fitting. Furthermore, we match our catalog with the 2 Ms CDF-N main X-ray catalog. For the 462 matched non-stellar X-ray sources, we improve their z phot quality (σNMAD = 0.035) by adding three additional AGN templates. We make our photometry and z phot catalog publicly available.

Original languageEnglish (US)
Pages (from-to)56
Number of pages1
JournalProceedings of the International Astronomical Union
StatePublished - 2015

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science


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