MAGPIS: Galactic Plane Radio Survey with 3000+ Cataloged Sources

The Multi-Array Galactic Plane Imaging Survey (MAGPIS) maps the first Galactic quadrant with high-resolution radio images. It catalogues over 3000 discrete sources and approximately 400 diffuse emission regions, with a source detection threshold of 1-2 mJy at 20 cm wavelength. This table was created by NASA's HEASARC in June 2006 based on data from the Astronomical Journal.

Use Cases

• Identify and classify discrete radio sources based on the catalog of over 3000 objects.
• Study diffuse emission structures based on the catalog of approximately 400 regions.
• Analyze Galactic plane morphology using high-resolution 20 cm and complementary 90 cm images.
• Cross-reference radio data with infrared observations using the regridded MSX 21 micron images.

Strengths

• High angular resolution of approximately 6 arcseconds, surpassing prior surveys.
• Catalog includes a substantial number of objects: over 3000 discrete sources and ~400 diffuse regions.
• Spatial coverage is defined as Galactic longitudes 5 to 32 degrees and latitudes within 0.8 degrees of the plane.

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 geographic bias inherent to the specific survey region of the Galactic plane.

Provenance

Source

NASA HEASARC

Collection Method

Survey data from the Multi-Array Galactic Plane Imaging Survey (MAGPIS), processed into a catalog.

Time Range

Survey data collection time range is not specified.

Freshness

Last updated 2026-03-13 20:01:38.995335; freshness should be verified.

Geography

First Galactic quadrant, specifically Galactic longitudes 5 to 32 degrees and latitudes within 0.8 degrees of the Galactic plane.