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Cited by 523

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THE CHANDRA DEEP FIELD-SOUTH SURVEY: 7 MS SOURCE CATALOGS

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Luo, B., Brandt, W. N., Xue, Y. Q., Lehmer, B., Alexander, D. M., Bauer, F. E., Vito, F., Yang, G., Basu-Zych, A. R., Comastri, A., Gilli, R., Gu, Q.-S., Hornschemeier, A. E., Koekemoer, A., Liu, T., Mainieri, V., Paolillo, M., Ranalli, P., Rosati, P., Schneider, D. P., Shemmer, O., Smail, I., Sun, M., Tozzi, P., Vignali, C., Wang, J.-X.·2017·The Astrophysical Journal Supplement Series

Abstract

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 arcmin 2. 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 ( ) 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 arcmin 2 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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Metadata

Authors
Luo, B., Brandt, W. N., Xue, Y. Q., Lehmer, B., Alexander, D. M., Bauer, F. E., Vito, F., Yang, G., Basu-Zych, A. R., Comastri, A., Gilli, R., Gu, Q.-S., Hornschemeier, A. E., Koekemoer, A., Liu, T., Mainieri, V., Paolillo, M., Ranalli, P., Rosati, P., Schneider, D. P., Shemmer, O., Smail, I., Sun, M., Tozzi, P., Vignali, C., & Wang, J.-X.
Venue
The Astrophysical Journal Supplement Series
Published
2016-12-27
Volume
228
Issue
1
Pages
2
ISSN
  • 0067-0049 (ISSN-L)
  • 1538-4365
OpenAlex
W2561905335
Cited by
523
References
1
FWCI
25.07
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: THE CHANDRA DEEP FIELD-SOUTH SURVEY: 7 MS SOURCE CATALOGS. https://app.cochat.ai/papers/10.3847/1538-4365/228/1/2
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Luo, B., Brandt, W. N., Xue, Y. Q., Lehmer, B., Alexander, D. M., Bauer, F. E., Vito, F., Yang, G., Basu-Zych, A. R., Comastri, A., Gilli, R., Gu, Q.-S., Hornschemeier, A. E., Koekemoer, A., Liu, T., Mainieri, V., Paolillo, M., Ranalli, P., Rosati, P., . . . Wang, J.-X. (2017). THE CHANDRA DEEP FIELD-SOUTH SURVEY: 7 MS SOURCE CATALOGS. The Astrophysical Journal Supplement Series. https://doi.org/10.3847/1538-4365/228/1/2

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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