TY - JOUR
T1 - THE CHANDRA DEEP FIELD-SOUTH SURVEY
T2 - 7 MS SOURCE CATALOGS
AU - Luo, B.
AU - Brandt, W. N.
AU - Xue, Y. Q.
AU - Lehmer, B.
AU - Alexander, D. M.
AU - Bauer, F. E.
AU - Vito, F.
AU - Yang, G.
AU - Basu-Zych, A. R.
AU - Comastri, A.
AU - Gilli, R.
AU - Gu, Q. S.
AU - Hornschemeier, A. E.
AU - Koekemoer, A.
AU - Liu, T.
AU - Mainieri, V.
AU - Paolillo, M.
AU - Ranalli, P.
AU - Rosati, P.
AU - Schneider, D. P.
AU - Shemmer, O.
AU - Smail, I.
AU - Sun, M.
AU - Tozzi, P.
AU - Vignali, C.
AU - Wang, J. X.
N1 - Funding Information:
We acknowledge financial support from the National Thousand Young Talents program of China (B.L., Y.Q.X.), National Natural Science Foundation of China grant 11673010 (B.L.), Ministry of Science and Technology of China grant 2016YFA0400702 (B.L.), CXC grant GO4-15130A (B.L., W.N.B., F.V., G.Y.), 973 Program 2015CB857004.
Publisher Copyright:
© 2016. The American Astronomical Society. All rights reserved.
PY - 2017/1
Y1 - 2017/1
N2 - We present X-ray source catalogs for the ≈7 Ms exposure of the Chandra Deep Field-South (CDF-S), which covers a total area of 484.2 arcmin2. Utilizing wavdetect for initial source detection and ACIS Extract for photometric extraction and significance assessment, we create a main source catalog containing 1008 sources that are detected in up to three X-ray bands: 0.5-7.0 keV, 0.5-2.0 keV, and 2-7 keV. A supplementary source catalog is also provided, including 47 lower-significance sources that have bright (Ks ≤ 23) near-infrared counterparts. We identify multiwavelength counterparts for 992 (98.4%) of the main-catalog sources, and we collect redshifts for 986 of these sources, including 653 spectroscopic redshifts and 333 photometric redshifts. Based on the X-ray and multiwavelength properties, we identify 711 active galactic nuclei (AGNs) from the main-catalog sources. Compared to the previous ≈4 Ms CDF-S catalogs, 291 of the main-catalog sources are new detections. We have achieved unprecedented X-ray sensitivity with average flux limits over the central ≈1 arcmin2 region of ≈1.9 ×10-17, 6.4 ×10-18, and 2.7 ×10-17 erg cm-2 s-1 in the three X-ray bands, respectively. We provide cumulative number-count measurements observing, for the first time, that normal galaxies start to dominate the X-ray source population at the faintest 0.5-2.0 keV flux levels. The highest X-ray source density reaches ≈50,500 deg-2, and 47% ± 4% of these sources are AGNs (≈23,900 deg-2).
AB - We present X-ray source catalogs for the ≈7 Ms exposure of the Chandra Deep Field-South (CDF-S), which covers a total area of 484.2 arcmin2. Utilizing wavdetect for initial source detection and ACIS Extract for photometric extraction and significance assessment, we create a main source catalog containing 1008 sources that are detected in up to three X-ray bands: 0.5-7.0 keV, 0.5-2.0 keV, and 2-7 keV. A supplementary source catalog is also provided, including 47 lower-significance sources that have bright (Ks ≤ 23) near-infrared counterparts. We identify multiwavelength counterparts for 992 (98.4%) of the main-catalog sources, and we collect redshifts for 986 of these sources, including 653 spectroscopic redshifts and 333 photometric redshifts. Based on the X-ray and multiwavelength properties, we identify 711 active galactic nuclei (AGNs) from the main-catalog sources. Compared to the previous ≈4 Ms CDF-S catalogs, 291 of the main-catalog sources are new detections. We have achieved unprecedented X-ray sensitivity with average flux limits over the central ≈1 arcmin2 region of ≈1.9 ×10-17, 6.4 ×10-18, and 2.7 ×10-17 erg cm-2 s-1 in the three X-ray bands, respectively. We provide cumulative number-count measurements observing, for the first time, that normal galaxies start to dominate the X-ray source population at the faintest 0.5-2.0 keV flux levels. The highest X-ray source density reaches ≈50,500 deg-2, and 47% ± 4% of these sources are AGNs (≈23,900 deg-2).
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U2 - 10.3847/1538-4365/228/1/2
DO - 10.3847/1538-4365/228/1/2
M3 - Article
AN - SCOPUS:85011573786
SN - 0067-0049
VL - 228
JO - Astrophysical Journal, Supplement Series
JF - Astrophysical Journal, Supplement Series
IS - 1
M1 - 2
ER -