Planck PR2 SZ Cluster Union List: Galaxy Clusters Detected via Sunyaev-Zeldovich Effect
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Description
A union catalog of galaxy clusters detected via the Sunyaev-Zeldovich effect, released as part of Planck Data Release 2. The list includes coordinates, signal-to-noise ratios, and external validation information like redshifts. It combines results from three independent detection pipelines: MMF1, MMF3, and PowellSnakes.
Use Cases
Validate galaxy cluster detection algorithms based on the comparison of three independent pipelines (MMF1, MMF3, PowellSnakes).
Study the distribution and properties of galaxy clusters based on coordinates and signal-to-noise ratios.
Cross-match and validate cluster candidates based on external identification and redshift information.
Analyze the consistency and reliability of Sunyaev-Zeldovich effect detections from the Planck mission.
Strengths
Provides a union catalog combining results from three independent detection methods (MMF1, MMF3, PowellSnakes).
Includes external validation information such as cluster identification and available redshifts.
Released as a component of the authoritative Planck Data Release 2.
Limitations
Column-level documentation is absent; field semantics must be inferred after download.
Row count is unknown, which may limit suitability assessment for large-scale statistical analysis.
Provenance
Source
National Aeronautics and Space Administration
Collection Method
Detected using multifrequency algorithms on Planck satellite data via the Sunyaev-Zeldovich effect.
Time Range
Planck mission observational period.
Freshness
Last updated 2026-03-13 17:53:23.486490; freshness should be verified.
Geography
All-sky survey.
License is listed as 'other-license-specified'; specific terms must be reviewed before use.