SPTSZSPSC ivo://nasa.heasarc/sptszspsc NASA/GSFC HEASARC Everett et al. 2026-10-09 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Survey Source This database table presents the catalog of emissive point-sources detected in the South Pole Telescope Sunyaev-Zel'dovich (SPT-SZ) survey, which is a contiguous 2530 deg<sup>2</sup> area surveyed between 2008-2011 in three bands centered at 95, 150, and 220 GHz. The catalog contains 4845 sources measured at a significance of 4.5 sigma or greater in at least one band, corresponding to detections above approximately 9.8, 5.8, and 20.4 mJy in 95, 150, and 220 GHz, respectively. Spectral behavior in the SPT bands is used for source classification into two populations based on the underlying physical mechanisms of compact, emissive sources that are bright at millimeter wavelengths: synchrotron radiation from active galactic nuclei and thermal emission from dust. The latter population includes a component of high-redshift sources often referred to as submillimeter galaxies (SMGs). In the relatively bright flux ranges probed by the survey, these sources are expected to be magnified by strong gravitational lensing. The survey also contains sources consistent with protoclusters, groups of dusty galaxies at high redshift undergoing collapse. The authors cross-match the SPT-SZ catalog with external catalogs at radio, infrared, and X-ray wavelengths and identify available redshift information. The catalog splits into 3980 synchrotron-dominated and 865 dust-dominated sources and determines a list of 506 SMGs. 10 sources are identified as stars. The SPT is a 10-m telescope located at the Amundsen-Scott South Pole station in Antarctica. At 150 GHz (2 mm), the SPT has arcminute angular resolution and a 1 deg<sup>2</sup> diffraction-limited field of view. The SPT was designed for high-sensitivity millimeter/sub-millimeter observations of faint, low-contrast sources, such as CMB anisotropies. The first survey with the SPT, designated as the SPT-SZ survey, was completed in 2011 November and covers a ~2500 deg<sup>2</sup> region of the southern extragalactic sky in three frequency bands, 95, 150, and 220 GHz, corresponding to wavelengths of 3.2, 2.0, and 1.4 mm. The fields were surveyed to depths of approximately 40, 18, and 70 microK arcmin at 95, 150, and 220 GHz, respectively. This study uses data from 19 fields observed by the SPT between 2008 and 2011. The fields are referred to using the J2000 coordinates of their centers, Right Ascension in hours and Declination in degrees. Table 1 in the reference paper lists the positions and effective areas of these fields.The total effective area used for the catalog and analysis in this present work is 2530 deg<sup>2</sup>. The catalog is an extension of two previous works: Vieira et al. (2010, ApJ, 719, 763) and Mocanu et al. (2013, ApJ, 779, 61) and builds on the same analysis pipeline, adding 1759 deg<sup>2</sup> of newly analyzed data, and additional data for two fields which were re-observed in 2010 and 2011. This table was originally created by the HEASARC in January 2014. It was updated to the 2020 version of this catalog in July 2020, based on a machine-readable catalog which was obtained from the <a href="https://lambda.gsfc.nasa.gov/product/spt/spt_everett2020_ps_catalog_info.cfm">LAMBDA</a> website. This is a service provided by NASA HEASARC . 2020arXiv200303431E https://heasarc.gsfc.nasa.gov/W3Browse/all/sptszspsc.html Catalog Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=sptszspsc& GET text/xml 180 99999 true 52.937305 -65.301392 0.0833333333333333 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=sptszspsc GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_sptszspsc&Action=More+Options&Action=Parameter+Search&ConeAdd=1 RADIO CATALOG 0.0833333333333333 Radio public sptszspsc South Pole Telescope Sunyaev-Zeldovich Survey Point Source Catal name IAUC Designation for SPT Detected Source meta.id;meta.main char nullable ra Right Ascension degree pos.eq.ra;meta.main double nullable dec Declination degree pos.eq.dec;meta.main double nullable flux_95_ghz Deboosted 95-GHz Band Flux Density mJy phot.flux.density;em.mm.50-100GHz double nullable flux_95_ghz_neg_err Lower Uncertainty for Deboosted 95-GHz Band Flux Density mJy stat.error;phot.flux.density;em.mm.50-100GHz double nullable flux_95_ghz_pos_err Upper Uncertainty for Deboosted 95-GHz Band Flux Density mJy stat.error;phot.flux.density;em.mm.50-100GHz double nullable flux_150_ghz Deboosted 150-GHz Band Flux Density mJy phot.flux.density;em.mm.100-200GHz double nullable flux_150_ghz_neg_err Lower Uncertainty for Deboosted 150-GHz Band Flux Density mJy stat.error;phot.flux.density;em.mm.100-200GHz double nullable flux_150_ghz_pos_err Upper Uncertainty for Deboosted 150-GHz Band Flux Density mJy stat.error;phot.flux.density;em.mm.100-200GHz double nullable flux_220_ghz Deboosted 220-GHz Band Flux Density mJy phot.flux.density;em.mm.200-400GHz double nullable flux_220_ghz_neg_err Lower Uncertainty for Deboosted 220-GHz Band Flux Density mJy stat.error;phot.flux.density;em.mm.200-400GHz double nullable flux_220_ghz_pos_err Upper Uncertainty for Deboosted 220-GHz Band Flux Density mJy stat.error;phot.flux.density;em.mm.200-400GHz double nullable "__x_ra_dec" System unit vector column double nullable "__y_ra_dec" System unit vector column double nullable "__z_ra_dec" System unit vector column double nullable "__row" System index column char nullable redshift Redshift of the SPT Source, Obtained from Either Follow-Up Observations or NED src.redshift double nullable bii Galactic Latitude degree pos.galactic.lat double nullable raw_flux_150_ghz Raw 150-GHz Band Flux Density mJy phot.flux.density;em.mm.100-200GHz double nullable raw_flux_220_ghz Raw 220-GHz Band Flux Density mJy phot.flux.density;em.mm.200-400GHz double nullable raw_spectral_index_2 Raw Spectral Index Between 150-220 GHz spect.index;em.mm.100-200GHz;em.mm.200-400GHz double nullable raw_flux_95_ghz Raw 95-GHz Band Flux Density mJy phot.flux.density;em.mm.50-100GHz double nullable snr_150_ghz The 150-GHz Band Detection Significance stat.snr;phot.flux.density;em.mm.100-200GHz double nullable spectral_index_1_pos_err Upper Uncertainty for Deboosted Spectral Index Between 95-150 GHz stat.error;spect.index;em.mm.50-100GHz;em.mm.100-200GHz double nullable spectral_index_2_pos_err Upper Uncertainty for Deboosted Spectral Index Between 150-220 GHz stat.error;spect.index;em.mm.100-200GHz;em.mm.200-400GHz double nullable spectral_index_2_neg_err Lower Uncertainty for Deboosted Spectral Index Between 150-220 GHz stat.error;spect.index;em.mm.100-200GHz;em.mm.200-400GHz double nullable extended_flag Flag [YN] Indicates Extended Sources meta.code;phys.angSize char nullable selected_flags Flags [1-4] Indicate Selection Cuts for the Source meta.code char nullable spectral_index_1_neg_err Lower Uncertainty for Deboosted Spectral Index Between 95-150 GHz stat.error;spect.index;em.mm.50-100GHz;em.mm.100-200GHz double nullable snr_220_ghz The 220-GHz Band Detection Significance stat.snr;phot.flux.density;em.mm.200-400GHz double nullable frac_sippd_gt_threshold Fraction of Spectral Index Posterior Probability Density stat.probability double nullable lii Galactic Longitude degree pos.galactic.lon double nullable spectral_index_2 Deboosted Spectral Index Between 150-220 GHz spect.index;em.mm.100-200GHz;em.mm.200-400GHz double nullable source_type Source Classification src.class char nullable spectral_index_1 Deboosted Spectral Index Between 95-150 GHz spect.index;em.mm.50-100GHz;em.mm.100-200GHz double nullable snr_95_ghz The 95-GHz Band Detection Significance stat.snr;phot.flux.density;em.mm.50-100GHz double nullable raw_spectral_index_1 Raw Spectral Index Between 95-150 GHz spect.index;em.mm.50-100GHz;em.mm.100-200GHz double nullable ctrpart_catalogs External Counterpart(s) meta.ref;meta.table char nullable