Australia Telescope Hubble Deep Field-South 2.5, 5.2 and 8.7-GHz Source Catalog

Deep radio observations centered on the Hubble Deep Field-South region, performed by the Australia Telescope Compact Array. The catalog contains 101 primary sources detected at 2.5, 5.2, and 8.7 GHz, with reliability thresholds of 5.5, 5, and 5 sigma respectively. The data was produced by NASA and last updated in March 2026.

Use Cases

• Cross-matching radio sources with optical counterparts based on the detailed positional data.
• Analyzing source reliability and completeness based on the described signal-to-noise ratio thresholds.
• Studying spectral properties of sources using the multi-frequency observations at 1.4, 2.5, 5.2, and 8.7 GHz.
• Investigating faint, low-SNR sources by matching them with prior 1.4 GHz detections as described.

Strengths

• Observations reach a central rms sensitivity of ~10 microJy.
• Catalogs have 71, 24, and 6 sources at 2.5, 5.2, and 8.7 GHz respectively, with defined reliability cutoffs.
• Includes supplementary catalogs of low-SNR counterparts matched to 1.4 GHz sources.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown for the full dataset, which may limit suitability assessment.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Observations from the Australia Telescope Compact Array, with data reduction and analysis detailed in referenced papers.

Time Range

Observations likely from the early 2000s, based on referenced papers from 2005.

Freshness

Last updated 2026-03-13 18:26:11.878967; freshness should be verified.

Geography

Centered on the Hubble Deep Field-South region, with specific J2000.0 coordinates provided.