NuSTAR ECDF-S Survey: 49 X-Ray Source Catalog with Redshifts and Luminosities

NASA HEASARC provides the source catalog from the Nuclear Spectroscopic Telescope Array (NuSTAR) survey of the Extended Chandra Deep Field South. The catalog contains 49 significant sources detected in the 3-24 keV band, with redshifts from 0.21 to 2.7 and rest-frame 10-40 keV luminosities spanning (0.7 - 300) x 10^43 erg/s. This table was created in September 2017 based on observations taken between 2012 September and 2013 April.

Use Cases

• Analyze the distribution of hard X-ray sources based on the 49 detected objects.
• Study the relationship between photon index and luminosity based on the reported band ratios and Gamma values.
• Investigate the evolution of the X-ray luminosity function below its 'knee' using the provided redshift and luminosity ranges.
• Identify potential new X-ray sources without Chandra/XMM-Newton counterparts, like the one noted with infrared activity.

Strengths

• Contains 49 significant X-ray sources with detailed detection thresholds (~1.3 x 10^-14 erg/s/cm^2 in 3-8 keV).
• Provides specific astrophysical parameters: redshift range (z = 0.21 - 2.7), luminosity range, and median photon index (1.70 +/- 0.52).
• Survey depth is quantified with exposure times (~360 ks maximum) and sensitivity limits across three energy bands.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for specific statistical methods.

Provenance

Source

National Aeronautics and Space Administration (NASA HEASARC)

Collection Method

Observations from the NuSTAR telescope over two passes in 2012-2013, processed into a source catalog.

Time Range

Observations from 2012 September to 2013 April.

Freshness

Last updated 2026-03-13 20:13:27.523460; freshness should be verified.

Geography

Covers the full ~30' x 30' area of the Extended Chandra Deep Field South.