SPT-SZ Survey: 4,845 Millimeter-Wave Point Sources from 2008-2011
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Description
The South Pole Telescope Sunyaev-Zeldovich Survey Point Source Catalog (2020) contains 4,845 emissive point sources detected at 4.5 sigma or greater significance across a 2,530 square degree area of the southern sky. The National Aeronautics and Space Administration (NASA) published this catalog, which classifies sources into 3,980 synchrotron-dominated and 865 dust-dominated populations, including 506 candidate submillimeter galaxies. Observations were conducted between 2008 and 2011 using the 10-meter South Pole Telescope at 95, 150, and 220 GHz frequencies.
Use Cases
Classifying millimeter-wave sources as synchrotron or dust-dominated based on spectral behavior in three bands.
Identifying candidate submillimeter galaxies (SMGs) and gravitationally lensed sources from the bright flux ranges probed.
Cross-matching point sources with external radio, infrared, and X-ray catalogs for multi-wavelength analysis.
Studying protoclusters and groups of dusty galaxies at high redshift undergoing collapse.
Strengths
Contains 4,845 sources with significance thresholds defined per frequency band (e.g., >5.8 mJy at 150 GHz).
Covers a contiguous 2,530 square degree survey area with arcminute angular resolution.
Provides source classification into two physical populations (3,980 synchrotron, 865 dust) and identifies 506 SMG candidates.
Builds upon and extends two previous published works, adding 1,759 square degrees of newly analyzed data.
Limitations
Column-level documentation is absent; field semantics must be inferred after download.
Row count is unknown, which may limit suitability assessment for specific modeling tasks.
Data may reflect temporal bias inherent to the 2008-2011 observation period.
Provenance
Source
National Aeronautics and Space Administration
Collection Method
Observations from the 10-meter South Pole Telescope at the Amundsen-Scott South Pole station.
Time Range
2008 to 2011
Freshness
Last updated 2026-03-13 16:29:20.676830; freshness should be verified.