PHZ: Planck List of 2151 High Redshift Source Candidates

2151 high-redshift source candidates identified from 48 months of Planck satellite data combined with IRAS data. The list targets point sources in the cleanest 26% of the sky exhibiting a submillimeter excess. It was produced by the National Aeronautics and Space Administration and last updated in March 2026.

Use Cases

• Identify candidate high-redshift galaxies for follow-up observation based on submillimeter excess.
• Study the properties of strongly lensed galaxies within the candidate population.
• Analyze the color-color ratios of extragalactic point sources to refine selection criteria.
• Investigate galaxy overdensities in regions identified by the Planck satellite.

Strengths

• Contains 2151 identified source candidates.
• Built from 48 months of data from the Planck satellite at four frequencies.
• Focuses on the cleanest 26% of the sky to minimize Galactic cirrus contamination.
• A subsample has been validated with Herschel follow-up, characterizing over 93% as overdensities of red galaxies.

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 Planck and IRAS survey footprints.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Built using 48 months of Planck data at 857, 545, 353, and 217 GHz combined with 3 THz IRAS data.

Freshness

Last updated 2026-03-13 17:04:13.983897; freshness should be verified.

Geography

Covers the cleanest 26% of the sky.