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We present data products from the 300 ks Chandra survey in the AKARI NorthEcliptic Pole (NEP) deep field. This field has a unique set of 9-band infraredphotometry covering 2-24 micron from the AKARI Infrared Camera, includingmid-infrared (MIR) bands not covered by Spitzer. The survey is one of thedeepest ever achieved at ~15 micron, and is by far the widest among those withsimilar depths in the MIR. This makes this field unique for the MIR-selectionof AGN at z~1. We design a source detection procedure, which performs jointMaximum Likelihood PSF fits on all of our 15 mosaicked Chandra pointingscovering an area of 0.34 square degree. The procedure has been highly optimizedand tested by simulations. We provide a point source catalog with photometryand Bayesian-based 90 per cent confidence upper limits in the 0.5-7, 0.5-2,2-7, 2-4, and 4-7 keV bands. The catalog contains 457 X-ray sources and thespurious fraction is estimated to be ~1.7 per cent. Sensitivity and 90 per centconfidence upper flux limits maps in all bands are provided as well. We searchfor optical MIR counterparts in the central 0.25 square degree, where deepSubaru Suprime-Cam multiband images exist. Among the 377 X-ray sources detectedthere, ~80 per cent have optical counterparts and ~60 per cent also have AKARImid-IR counterparts. We cross-match our X-ray sources with MIR-selected AGNfrom Hanami et al. (2012). Around 30 per cent of all AGN that have MID-IR SEDspurely explainable by AGN activity are strong Compton-thick AGN candidates.

Chandra survey in the AKARI North Ecliptic Pole Deep Field. I. X-ray data, point-like source catalog, sensitivity maps, and number counts