VLA-VIRMOS Deep Field: 1,054 Radio Sources at 1.4 GHz

The VLA-VIRMOS Deep Field 20-cm Source Catalog contains 1,103 entries for 1,054 radio sources detected in a 1 square degree region centered at RA 02 26 00, Dec -04 30 00 (J2000.0). The survey was conducted with the Very Large Array at 1.4 GHz with an rms noise of ~17 microJansky, reaching a 5-sigma limit of 0.08 mJy. This table was created by NASA's HEASARC in February 2012 based on the original CDS catalog.

Use Cases

• Analyzing the radio source count distribution down to 0.08 mJy based on the catalog's flux density data.
• Studying the angular-size distribution and resolution bias effects using the modeled and simulated source data mentioned in the description.
• Cross-matching radio sources with optical counterparts using the provided coordinates and the existing multiband photometry (I_AB = 25) from the VIRMOS VLT Deep Survey.
• Investigating composite radio sources based on the 19 entries with multiple components and their total flux measurements.

Strengths

• Catalog is complete down to a 0.08 mJy limit, containing 1,054 radio sources.
• Survey has homogeneous sensitivity over the entire 1 square degree field with a resolution of 6 arcseconds.
• Data reduction accounted for effects like clean bias and bandwidth smearing, as detailed in the source paper.
• Includes entries for both individual components and total flux for 19 composite sources.

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 17:15:22.866032; freshness should be verified.

Provenance

Source

National Aeronautics and Space Administration (NASA HEASARC), based on CDS Catalog J/A+A/403/857.

Collection Method

Observations from the Very Large Array (VLA) at 1.4 GHz, with data reduction and catalog creation described in the associated paper.

Freshness

Last updated 2026-03-13 17:15:22.866032

Geography

Centered at RA 02 26 00, Dec -04 30 00 (J2000.0), covering a 1 square degree region in the VIRMOS VLT Deep Survey field.