VLA GOODS-North: 1.4-GHz Radio Source Catalog for a Deep Field

A catalog of 1230 discrete radio emitters detected at 1.4 GHz in the GOODS-North field, a region covering approximately 160 square arcminutes. The data were obtained from 165 hours of Very Large Array observations between February 2005 and February 2006 and processed by NASA HEASARC in September 2013. The observations achieved a dynamic range of 6800:1 and an rms noise level as low as ~3.9 microJansky per beam.

Use Cases

• Analyze faint radio source counts and luminosity functions based on the 1230 cataloged emitters.
• Cross-match radio sources with ancillary multi-wavelength data (Chandra, HST, Spitzer) mentioned for the GOODS-North field.
• Study source morphology and size distribution based on the reported median source diameter of ~1.2 arcseconds.
• Investigate the radio source confusion limit and its implications for the cosmic microwave background based on the discussion of counts below 1 microJansky.

Strengths

• Contains 1230 discrete radio sources detected above a 5-sigma threshold.
• Achieved a high dynamic range of 6800:1 in a field with strong confusing sources.
• Based on a substantial 165 hours of dedicated Very Large Array observations.
• Integrates with unrivaled ancillary datasets including deep Chandra, HST, and Spitzer observations for the same field.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Last updated 2026-03-13 17:50:46.887684; freshness should be verified.

Provenance

Source

NASA HEASARC, based on CDS Catalog J/ApJS/188/178.

Collection Method

Observations from the NRAO Very Large Array in A-configuration.

Time Range

Observations conducted between 2005 February and 2006 February.

Freshness

Last updated 2026-03-13 17:50:46.887684

Geography

Centered on RA 12:36:49.4, Dec +62:12:58 (J2000), covering a 40' x 40' region.