2015ApJS..220...10N -
Astrophys. J., Suppl. Ser., 220, 10 (2015/September-0)
AEGIS-X: Deep Chandra imaging of the central Groth Strip.
NANDRA K., LAIRD E.S., AIRD J.A., SALVATO M., GEORGAKAKIS A., BARRO G., PEREZ-GONZALEZ P.G., BARMBY P., CHARY R.-R., COIL A., COOPER M.C., DAVIS M., DICKINSON M., FABER S.M., FAZIO G.G., GUHATHAKURTA P., GWYN S., HSU L.-T., HUANG J.-S., IVISON R.J., KOO D.C., NEWMAN J.A., RANGEL C., YAMADA T. and WILLMER C.
Abstract (from CDS):
We present the results of deep Chandra imaging of the central region of the Extended Groth Strip, the AEGIS-X Deep (AEGIS-XD) survey. When combined with previous Chandra observations of a wider area of the strip, AEGIS-X Wide (AEGIS-XW), these provide data to a nominal exposure depth of 800 ks in the three central ACIS-I fields, a region of approximately 0.29 deg2. This is currently the third deepest X-ray survey in existence; a factor shallower than the Chandra Deep Fields (CDFs), but over an area ∼3 times greater than each CDF. We present a catalog of 937 point sources detected in the deep Chandra observations, along with identifications of our X-ray sources from deep ground-based, Spitzer, GALEX, and Hubble Space Telescope imaging. Using a likelihood ratio analysis, we associate multiband counterparts for 929/937 of our X-ray sources, with an estimated 95% reliability, making the identification completeness approximately 94% in a statistical sense. Reliable spectroscopic redshifts for 353 of our X-ray sources are available predominantly from Keck (DEEP2/3) and MMT Hectospec, so the current spectroscopic completeness is ∼38%. For the remainder of the X-ray sources, we compute photometric redshifts based on multiband photometry in up to 35 bands from the UV to mid-IR. Particular attention is given to the fact that the vast majority the X-ray sources are active galactic nuclei and require hybrid templates. Our photometric redshifts have mean accuracy of and an outlier fraction of approximately 5%, reaching with less than 4% outliers in the area covered by CANDELS. The X-ray, multiwavelength photometry, and redshift catalogs are made publicly available.
Abstract Copyright:
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Journal keyword(s):
galaxies: active - galaxies: nuclei - surveys
VizieR on-line data:
<Available at CDS (J/ApJS/220/10): table11.dat table12.dat table13.dat table14.dat table15.dat>
Nomenclature:
Table 11, col(1): [NLA2015] aegis NNN (Nos 1-937) = Table 11, col(2): AEGISXD JHHMMSS.ss+DDMMSS.s N=937.
Status at CDS
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All or part of tables of objects could be ingested in SIMBAD with priority 2.
Simbad objects:
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