Planck Catalog of Galactic Cold Clumps (PGCC): 13,188 Sources Across the Whole Sky
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Description
The Planck Catalog of Galactic Cold Clumps (PGCC) is an all-sky catalog of 13,188 Galactic cold clump candidates detected by the Planck satellite using 48 months of mission data. It is the full version of the 2011 Early Cold Core catalog and includes sources with median temperatures between 13 and 14.5K, ranging from low-mass cores to large molecular clouds. The catalog, created by the HEASARC in March 2019 based on CDS data, also contains 54 sources in the Magellanic Clouds.
Use Cases
Investigating the evolution from molecular clouds to cores based on the catalog's diversity of sources in different environments.
Analyzing the physical properties (mass, size, density, luminosity) of cold clumps based on the 5,574 sources with reliable distance estimates.
Studying the spatial distribution of cold dust emission across the whole sky, from the Galactic plane to high latitudes.
Comparing cold dust emission with warm dust tracers using the combined Planck and IRIS data mentioned in the description.
Strengths
Contains 13,188 Galactic sources, a significant increase from the 915 sources in the 2011 Early Cold Core catalog.
Provides reliable distance estimates for 5,574 sources, enabling derivation of physical properties.
Covers the entire sky, including sources up to 10.5 kpc away and in the Magellanic Clouds.
Limitations
Column-level documentation is absent; field semantics must be inferred after download.
Row count is unknown, which may limit suitability assessment.
Provenance
Source
National Aeronautics and Space Administration (NASA HEASARC), based on CDS Catalog J/A+A/594/A28.
Collection Method
Multi-frequency detection combining three highest Planck bands (857, 545, 353 GHz) with IRIS all-sky data at 3 THz.
Time Range
Based on Planck 48-month mission data.
Freshness
Last updated 2026-03-13 17:47:34.333162; freshness should be verified.
Geography
All-sky, Galactic, including the Small and Large Magellanic Clouds.
License is listed as 'other-license-specified'; specific terms should be reviewed before use.