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209 X-ray-detected active galactic nuclei (AGNs) at redshifts greater than 3, comprising the largest high-z X-ray-selected sample to date. The catalog includes rest-frame 2-10 keV luminosities and X-ray hardness ratios, with analysis confirming a decreasing comoving space density of AGNs with increasing redshift up to z ~ 7. It was created by NASA HEASARC in March 2016 based on data from the Chandra Cosmological Evolution Survey and Chandra Multi-wavelength Project.
License is specified as 'other-license-specified'; users must check the HEASARC or CDS source for specific terms. Primary file formats are BIN and HTML, which may require specialized tools for data extraction and analysis.