SXDF: 505 Radio Sources with Optical Counterparts from VLA Deep Field

The Subaru/XMM-Newton Deep Field (SXDF) contains a catalog of 505 radio sources detected at 1.4 GHz over 0.8 square degrees. The table, created by NASA HEASARC in 2013, includes robust or suggested optical identifications for 90% of the sources, with data collected by the Very Large Array between 2001 and 2003.

Use Cases

• Cross-correlating radio and X-ray source catalogs to study radio-quiet AGN populations, as mentioned in the description.
• Analyzing the optical properties of radio sources across different flux densities.
• Investigating the flattening of radio source counts at faint flux density limits below 300 microJansky.
• Identifying optically blank radio sources or those near bright contaminating objects.

Strengths

• Catalog contains 505 radio sources with a peak flux density limit of 100 microJansky.
• Provides robust optical identifications for 90% of the sources.
• Data combines observations from VLA B and C array configurations for improved angular scale information.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• 14 radio sources have no suggested optical identifications.

Provenance

Source

NASA HEASARC, based on CDS Catalog J/MNRAS/372/741.

Collection Method

Observations made with NRAO's Very Large Array in B and C configurations over multiple runs.

Time Range

Observations taken between 2001 May 17 and 2003 January 15.

Freshness

Last updated 2026-03-13 18:46:27.883525; freshness should be verified.

Geography

Covers the 1.3-square-degree Subaru/XMM-Newton Deep Field (SXDF).