PCCS2: Planck Catalog of 100-GHz Compact Sources Release 2

Planck, a European Space Agency mission launched in 2009, mapped the entire sky at frequencies from 30 to 857 GHz. The Second Planck Catalogue of Compact Sources (PCCS2) lists discrete Galactic and extragalactic objects detected in these full-mission maps, superseding earlier versions. It includes polarization measurements for seven channels and is split into the PCCS2 and PCCS2E subcatalogs based on detection reliability in different sky regions.

Use Cases

• Cross-matching and identifying compact sources based on multi-frequency Planck detections.
• Studying polarized emission from compact objects using the provided flux densities and orientation angles.
• Analyzing the completeness of source detection for a target 80% reliability compared to earlier catalogs.
• Separating Galactic foreground emissions from the cosmic microwave background using extended submillimeter wavelengths.

Strengths

• Covers the entire sky, providing a full-sky survey.
• Includes polarization measurements for seven Planck channels.
• Improves upon previous catalog versions with improved data processing and reduced noise.
• Operates at frequencies from 30 to 857 GHz, extending into submillimeter wavelengths.

Limitations

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

Provenance

Source

European Space Agency (ESA) Planck mission, with contributions from NASA.

Collection Method

Detections from single-frequency maps from the full duration of the Planck mission.

Time Range

Mission launched 2009, with First Light Survey starting August 2009.

Freshness

Last updated 2026-03-13 16:26:45.586779; freshness should be verified.

Geography

Entire sky.