New Catalog of Compact 20cm Radio Sources in the Galactic Plane

The Galactic plane from -20 to +120 degrees in longitude, with latitude coverage varying from +/- 0.8 to +/- 2.7 degrees. This table contains the New Catalog of Compact Radio (20-cm) Sources from White et al. (2005), created by combining archival data with Very Large Array observations. It covers about 331 square degrees, is 90% complete at a 14 mJy flux density threshold, and records over 5000 sources.

Use Cases

• Cross-matching compact radio sources with mid- and far-infrared surveys based on improved astrometry.
• Statistical analysis of compact source populations in the Galactic plane based on over 5000 recorded sources.
• Studying the distribution and properties of radio sources within a specific longitude and latitude range.
• Benchmarking source detection and catalog completeness based on the defined 90% completeness flux threshold.

Strengths

• Over 5000 compact radio sources recorded.
• Covers a survey area of about 331 square degrees in the Galactic plane.
• Provides a 30% increase in the number of high-reliability compact sources at 20 cm compared to prior work.
• Offers greatly improved astrometry, uniformity, and reliability as stated in the description.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect observational bias inherent to the specific VLA survey configuration and Galactic plane coverage.

Provenance

Source

NASA HEASARC, based on CDS tables J/AJ/130/586 table3.dat and table4.dat from White et al. (2005).

Collection Method

Combination of archival data and new observations using the Very Large Array.

Freshness

Catalog data is from 2005; metadata was last updated 2026-03-13 17:04:28.493989.

Geography

Galactic plane, longitude -20 to +120 degrees, latitude b = +/- 0.8 to +/- 2.7 degrees.