VLA E-CDF-S: 1.4-GHz Radio Source Catalog with 883 Sources

NASA's HEASARC table contains the VLA Extended-Chandra Deep Field-South 1.4-GHz Source Catalog. The second data release includes a catalog of 883 radio sources and 49 individual components from 17 multi-component sources, derived from deep observations taken in 2007. The survey covers about a third of a square degree with a best rms sensitivity of 6 microjanskys.

Use Cases

• Analyze radio source populations and flux densities based on the catalog of 883 sources.
• Study resolved and multi-component radio morphologies based on the 49 component entries for 17 sources.
• Cross-match radio sources with optical/near-IR counterparts for multi-wavelength analysis.
• Assess survey sensitivity and source detection thresholds based on the detailed pointing and rms sensitivity data.

Strengths

• Catalog contains 883 radio sources, roughly double the number from the first data release.
• Includes 49 individual component entries for 17 multi-component sources, allowing morphological study.
• Survey covers an area of about a third of a square degree with a best rms sensitivity of 6 microjanskys.
• Observations from six separate VLA pointings with over 40 hours of observation per pointing.

Limitations

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

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Deep radio observations at 1.4 GHz using the Very Large Array, with data reduction producing a second data release mosaic image and catalog.

Time Range

Observations performed in 2007 June through September.

Freshness

Last updated 2026-03-13 18:14:22.712931; freshness should be verified.

Geography

Covers the Extended Chandra Deep Field South, centered at RA, Dec (J2000) 03h 32m 28.00s, -27° 48' 30.0".