J/ApJ/900/55 The SPT-SZ catalog at 95, 150, and 220GHz (Everett+, 2020)
Millimeter-wave point sources from the 2500 square degree SPT-SZ survey:
catalog and population statistics.
Everett W.B., Zhang L., Crawford T.M., Vieira J.D., Aravena M.,
Archipley M.A., Austermann J.E., Benson B.A., Bleem L.E., Carlstrom J.E.,
Chang C.L., Chapman S., Crites A.T., de Haan T., Dobbs M.A., George E.M.,
Halverson N.W., Harrington N., Holder G.P., Holzapfel W.L., Hrubes J.D.,
Knox L., Lee A.T., Luong-Van D., Mangian A.C., Marrone D.P., McMahon J.J.,
Meyer S.S., Mocanu L.M., Mohr J.J., Natoli T., Padin S., Pryke C.,
Reichardt C.L., Reuter C.A., Ruhl J.E., Sayre J.T., Schaffer K.K.,
Shirokoff E., Spilker J.S., Stalder B., Staniszewski Z., Stark A.A.,
Story K.T., Switzer E.R., Vanderlinde K., Weiss A., Williamson R.
<Astrophys. J., 900, 55 (2020)>
=2020ApJ...900...55E 2020ApJ...900...55E
ADC_Keywords: Photometry, millimetric/submm; Galaxies, radio; Redshifts; Surveys
Keywords: High-redshift galaxies ; Submillimeter astronomy ; Surveys
Abstract:
We present a catalog of emissive point sources detected in the SPT-SZ
survey, a contiguous 2530 square degree area surveyed with the South
Pole Telescope (SPT) from 2008-2011 in three bands centered at 95,
150, and 220GHz. The catalog contains 4845 sources measured at a
significance of 4.5σ or greater in at least one band,
corresponding to detections above approximately 9.8, 5.8, and 20.4mJy
in 95, 150, and 220GHz, respectively. The 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. We 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 we determine
a list of 506 SMGs. Ten sources in the catalog are identified as
stars. We calculate number counts for the full catalog, and
synchrotron and dusty components, using a bootstrap method and compare
our measured counts with models. This paper represents the third and
final catalog of point sources in the SPT-SZ survey.
Description:
The South Pole Telescope (SPT) - Sunyaev-Zel'dovich (SZ) survey
represents the culmination of 4yr of observations, 2008-2011, of
roughly 2500 square degrees on the sky in three bands centered at 95,
150, and 220GHz with arcminute resolution.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 244 4845 *The SPT-SZ multiband catalog
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Note on table4.dat: Cross-matching across the three South Pole Telescope (SPT)
bands yields a multiband catalog with 4845 total sources detected at a
minimum of 4.5σ in at least one band.
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See also:
II/156 : IRAS Faint Source Catalog, |b|>10, Version 2.0 (Moshir+ 1989)
VIII/38 : The Parkes-MIT-NRAO 4.85GHz (PMN) Surveys (Griffith+ 1993-1996)
IX/10 : ROSAT All-Sky Bright Source Catalogue (1RXS) (Voges+ 1999)
IX/29 : ROSAT All-Sky Survey Faint Source Catalog (Voges+ 2000)
VII/221 : PSCz catalog (Saunders+, 2000)
VIII/78 : Sydney University Molonglo Sky Survey (SUMSS) (Mauch+ 2006)
VIII/81 : Sydney University Molonglo Sky Survey (SUMSS V2.1) (Mauch+ 2008)
II/297 : AKARI/IRC mid-IR all-sky Survey (ISAS/JAXA, 2010)
II/298 : AKARI/FIS All-Sky Survey Point Source Catalogues (ISAS/JAXA, 2010)
II/311 : WISE All-Sky Data Release (Cutri+ 2012)
II/328 : AllWISE Data Release (Cutri+ 2013)
J/A+A/363/887 : High frequency peakers. I. Bright sample (Dallacasa+, 2000)
J/MNRAS/372/1621 : SCUBA Half-Degree Extragalactic Survey. II (Coppin+, 2006)
J/MNRAS/380/199 : SCUBA Half-Degree Extragalactic Survey. III (Ivison+, 2007)
J/ApJS/178/280 : Compendium of ISO far-IR extragalactic data (Brauher+, 2008)
J/AN/330/223 : High frequency peakers. Faint sample (Stanghellini+, 2009)
J/MNRAS/401/160 : AzTEC survey of the SHADES fields. I. (Austermann+, 2010)
J/MNRAS/402/2403 : Australia Telescope 20GHz Survey Cat., AT20G (Murphy+, 2010)
J/ApJ/719/763 : Millimeter-wave sources in the SPT survey (Vieira+, 2010)
J/ApJ/779/61 : SPT-SZ point sources at 95, 150 & 220GHz (Mocanu+, 2013)
J/ApJS/216/27 : Galaxy clusters in the SPT-SZ survey (Bleem+, 2015)
J/A+A/594/A26 : 2nd Planck Cat. of Compact Sources (PCCS2) (Planck+, 2016)
J/MNRAS/465/1789 : SCUBA-2 Cosmology Legacy Survey (Geach+, 2017)
J/A+A/619/A94 : Planck Multi-frequences Non-thermal Sources (Planck+, 2018)
Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 5 A5 --- --- [SPT-S]
6- 19 A14 --- SPT-S Source identification (JHHMMSS+DDMM.m)
21- 27 F7.3 deg RAdeg Right Ascension (J2000)
29- 35 F7.3 deg DEdeg [-65.31/-39.7] Declination (J2000)
37- 43 F7.2 --- SN95 [0/2313] Raw signal-to-noise in 95GHz
45- 51 F7.2 mJy S95-raw [-8.3/5952] Raw flux in 95GHz
53- 59 F7.2 mJy S95-best [0.03/5959] Deboosted flux in 95GHz (1)
61- 67 F7.2 mJy B_S95-best [0.09/6049] Upper 1σ confidence
interval on S95-best
69- 75 F7.2 mJy b_S95-best [0.02/5870] Lower 1σ confidence
interval on S95-best
77- 83 F7.2 --- SN150 [0.0/3399] Raw signal-to-noise in 150GHz
85- 91 F7.2 mJy S150-raw [-2.8/4827] Raw flux in 150GHz
93- 99 F7.2 mJy S150-best [0.03/4843] Deboosted flux in 150GHz (1)
101- 107 F7.2 mJy B_S150-best [0.2/4933] Upper 1σ confidence
interval on S150-best
109- 115 F7.2 mJy b_S150-best [0.03/4710] Lower 1σ confidence
interval on S150-best
117- 122 F6.2 --- SN220 [0/808] Raw signal-to-noise in 220GHz
124- 130 F7.2 mJy S220-raw [-12.6/3915] Raw flux in 220GHz
132- 138 F7.2 mJy S220-best [0.09/3906] Deboosted flux in 220GHz (1)
140- 146 F7.2 mJy B_S220-best [0.3/4129] Upper 1σ confidence
interval on S220-best
148- 154 F7.2 mJy b_S220-best [0.03/3638] Lower 1σ confidence
interval on S220-best
156- 160 F5.1 --- alpha1-raw [-34.2/34.1] Spectral index between 95GHz
and 150GHz, raw fluxes
162- 165 F4.1 --- alpha1-best [-3/4.4] Spectral index between 95GHz
and 150GHz, deboosted fluxes (1)
167- 170 F4.1 --- B_alpha1-best [-2.9/4.8] Upper 1σ confidence
interval on alpha1-best
172- 175 F4.1 --- b_alpha1-best [-3/3.8] Lower 1σ confidence
interval on alpha1-best
177- 181 F5.1 --- alpha2-raw [-46.5/47.7] Spectral index between 150GHz
and 220GHz, raw fluxes
183- 186 F4.1 --- alpha2-best [-2.6/4.9] Spectral index between 150GHz
and 220GHz, deboosted fluxes (1)
188- 191 F4.1 --- B_alpha2-best [-2/5] Upper 1σ confidence interval
on alpha2-best
193- 196 F4.1 --- b_alpha2-best [-2.9/4.8] Lower 1σ confidence
interval on alpha2-best
198- 201 F4.2 --- Ppdf [0/1] Spectral index posterior probability
distribution above threshold (2)
203- 206 A4 --- Type Source Classification (3)
208- 222 A15 --- Ctpts Cross-match flag(s) (4)
224- 226 A3 --- Extd Extended source flag
("yes": 122 occurrences) (5)
228- 238 F11.9 --- z [1.7e-05/6.9]? Cross-matched redshift
from NED, if available
240- 244 A5 --- Cut Source cut flag(s) (6)
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Note (1): Deboosted flux from integrating 50% of the posterior PDF, with
16% and 84% taken as 1-σ lower and upper error confidence intervals.
Note (2): Fraction of the spectral index posterior probability distribution
above the threshold value of 1.51, where a higher value of Ppdf means the
source is more likely to be dust-dominated
Note (3): Classification of a source as either (synch)rotron- or
(dust)-dominated depending on the fraction of the integrated 150-220GHz
spectral index posterior above the threshold of 1.51.
For P(alpha2_best>1.51)≥0.5, the source is classified as dusty,
for P(alpha2_best>1.51)<0.5, the source is classified as synchrotron.
Note (4): Flag on sources with an associated detection in one of the
external catalogs we cross-match as follows:
1 = Sydney University Molonglo Sky Survey (SUMSS; see VIII/81) at 843MHz;
2 = Infrared Astronomical Satellite Faint Source Catalog (IRAS-FSC,
see II/156) at 12, 25, 60, and 100 um;
3 = Australia Telescope 20-GHz Survey (AT20G); Murphy+ (2010, J/MNRAS/402/2403)
4 = Wide-field Infrared Survey Explorer (WISE, II/311), AllWISE (II/328)
Source Catalog at 3.4, 4.6, 12, and 22um;
5 = Parkes-MIT-NRAO (PMN) Southern Survey at 4850MHz (see VIII/38);
6 = Infrared Astronomical Satellite AKARI. FIS Bright Source Catalog
(see II/298) at 65, 90, 140, and 160um
7 = Infrared Astronomical Satellite AKARI, IRC Point Source Catalog
(see II/297) at 9 and 18um;
8 = ROSAT All-Sky Survey (RASS) Bright Source Catalog (Voges+ 1999, IX/10)
and Faint Source Catalog (Voges+ 2000, IX/29) at X-ray energies
0.1-2.4keV.
Note (5): Flag on sources that appear to be extended or are multiple members
of the same source at physically offset locations due to being extended.
See Section 4.7.
Note (6): Flag indicating a source is a member of the following:
1 = extended cut ("ext cut"): all extended objects,
2 = "z cut",
3 = submillimeter galaxy (SMG) list (506 occurrences),
4 = stars (10 occurrences).
See Section 4.10.
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 13-Dec-2021