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

D. M. Alexander, F. E. Bauer, W. N. Brandt, Donald P. Schneider, A. E. Hornschemeier, C. Vignali, A. J. Barger, Patrick S. Broos, L. L. Cowie, G. P. Garmire,

The Astronomical Journal · 2003 · 803 citations · 95 references

DOI Full text

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Concepts

Natural SciencesAstronomyPhysicsExtragalactic AstronomyObservational AstronomyX-ray AstronomyExtragalactic X-ray SourcesHigh-energy Astrophysical SourcesX-ray DetectionX-ray Source CatalogsAstronomical X-ray DetectionDeep Field CatalogsPoint Source CatalogsPositional UncertaintyX-ray Source ClassificationX-ray Source DetectionX-ray Source PopulationsX-ray Surveys

TL;DR

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