Photometric Redshifts in the Hawaii-Hubble Deep Field-North (H-HDF-N)

We derive photometric redshifts (zphot) for sources in the entire ($\sim $ 0.4 deg2) Hawaii-Hubble Deep Field-North (H-HDF-N) field with the EAzY code, based on point spread function-matched photometry of 15 broad bands from the ultraviolet (U band) to mid-infrared (IRAC 4.5 $\mu $m). Our catalog consists of a total of 131,678 sources. We evaluate the zphot quality by comparing zphot with spectroscopic redshifts (zspec) when available, and find a value of normalized median absolute de- viation $\sigma $NMAD$=$ 0.029 and an outlier fraction of 5.5{\%} (outliers are defined as sources having \textbar zphot $-$ zspec\textbar /(1 $+$ zspec) \textgreater 0.15) for non-X-ray sources. Our zphot quality is comparable to those presented in similar works that derive zphot utilizing broadband photometry. We also classify each object as star or galaxy through template spectral energy distribu- tion fitting, resulting in 4913 stars and 126,765 galaxies. Furthermore, we match our catalog with the 2 Ms Chandra Deep Field-North main X-ray catalog. For the 462 matched non-stellar X-ray sources (281 having zspec), we improve their zphot quality by adding three additional AGN templates, achieving $\sigma $NMAD$=$ 0.037 and an outlier fraction of 12.8{\%}. We make our catalog publicly available presenting both photometry and zphot, and provide guidance on how to make use of our catalog.