PiGSS: Allen Telescope Array 3.1 GHz Radio Source Catalog for Bootes Field

A catalog of 425 radio sources detected in a 10 square-degree region of the Bootes constellation. The data was produced by the Allen Telescope Array's Pi GHz Sky Survey (PiGSS) project, based on 75 daily observations over a 4-month period. This table, created by NASA's HEASARC in 2011, provides flux densities, source sizes, and spectral indices for the detected sources.

Use Cases

• Identifying and characterizing flat-spectrum radio sources based on provided spectral indices.
• Analyzing source variability on timescales of days to months based on the survey's synoptic observation design.
• Searching for transient radio sources using flux density measurements over time.
• Studying the statistical properties of faint radio sources in a deep, targeted field.

Strengths

• Provides flux densities, source sizes, and spectral indices for 425 detected radio sources.
• Image constructed from 75 daily observations, achieving an rms flux density between 200 and 250 microjanskys.
• Identifies approximately 100 new flat-spectrum radio sources within the observed 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 19:51:19.423369; freshness should be verified.

Provenance

Source

National Aeronautics and Space Administration (NASA), HEASARC

Collection Method

Observations from the Allen Telescope Array (ATA) as part of the Pi GHz Sky Survey (PiGSS).

Time Range

Observations distributed over a 4-month period (specific dates not provided).

Freshness

Last updated 2026-03-13 19:51:19.423369; freshness should be verified.

Geography

A 10 square-degree region in the Bootes constellation overlapping the NOAO Deep Wide Field Survey field.