The Chandra Deep Field North Survey. XIII. 2 Ms Point-Source Catalogs

TLDR

The study presents catalogs from the ~2 Ms Chandra Deep Field‑North, the deepest X‑ray observation of the Universe in the 0.5–8.0 keV band. Source positions were derived with matched‑filter and centroiding methods, yielding a median uncertainty of ~0.3 arcsec, and lower‑significance X‑ray sources were cross‑matched to optical counterparts, producing a list of 79 optically bright R‑band objects. The catalog contains 503 X‑ray sources over ~448 sq.

Abstract

We present catalogs for the ~2 Ms Chandra Deep Field-North, currently the deepest X-ray observation of the Universe in the 0.5-8.0 keV band. Five hundred and three (503) X-ray sources are detected over an ~448 sq.arcmin area in up to seven bands; 20 of these X-ray sources lie in the Hubble Deep Field-North. Source positions are determined using matched-filter and centroiding techniques; the median positional uncertainty is ~0.3 arcsecs. The X-ray colors of the detected sources indicate a broad variety of source types, although absorbed AGNs (including some possible Compton-thick sources) are clearly the dominant type. We also match lower significance X-ray sources to optical counterparts and provide a list of 79 optically bright R