A Caltech Library Service

Extragalactic Millimeter-wave Point-source Catalog, Number Counts and Statistics from 771 deg^2 of the SPT-SZ Survey

Mocanu, L. M. and Vieira, J. D. and Lueker, M. and Padin, S. (2013) Extragalactic Millimeter-wave Point-source Catalog, Number Counts and Statistics from 771 deg^2 of the SPT-SZ Survey. Astrophysical Journal, 779 (1). Art. No. 61. ISSN 0004-637X. doi:10.1088/0004-637X/779/1/61.

PDF - Published Version
See Usage Policy.

PDF - Submitted Version
See Usage Policy.


Use this Persistent URL to link to this item:


We present a point-source catalog from 771 deg^2 of the South Pole Telescope Sunyaev-Zel'dovich survey at 95, 150, and 220 GHz. We detect 1545 sources above 4.5σ significance in at least one band. Based on their relative brightness between survey bands, we classify the sources into two populations, one dominated by synchrotron emission from active galactic nuclei, and one dominated by thermal emission from dust-enshrouded star-forming galaxies. We find 1238 synchrotron and 307 dusty sources. We cross-match all sources against external catalogs and find 189 unidentified synchrotron sources and 189 unidentified dusty sources. The dusty sources without counterparts are good candidates for high-redshift, strongly lensed submillimeter galaxies. We derive number counts for each population from 1 Jy down to roughly 11, 4, and 11 mJy at 95, 150, and 220 GHz. We compare these counts with galaxy population models and find that none of the models we consider for either population provide a good fit to the measured counts in all three bands. The disparities imply that these measurements will be an important input to the next generation of millimeter-wave extragalactic source population models.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Additional Information:© 2013 American Astronomical Society. Received 2013 June 12; accepted 2013 October 18; published 2013 November 25. The SPT is supported by the National Science Foundation through grant ANT-0638937, with partial support provided by NSF grant PHY-1125897, the Kavli Foundation, and the Gordon and Betty Moore Foundation. M. Aravena was co-funded under the Marie Curie Actions of the European Commission (FP7- COFUND). R. Keisler acknowledges support from NASA Hubble Fellowship grant HF-51275. This publication makes use of data products from the Widefield Infrared Survey Explorer, which is a joint project of the University of California, Los Angeles, and the Jet Propulsion Laboratory/California Institute of Technology, funded by the National Aeronautics and Space Administration. This research uses observations from the AKARI mission, a JAXA project with the participation of ESA. This work is based on observations obtained with Planck (, an ESA science mission with instruments and contributions directly funded by ESA Member States, NASA, and Canada. This research has made use of the NASA/IPAC Extragalactic Database (NED), which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. This research has made use of the SIMBAD database, operated at CDS, Strasbourg, France.
Funding AgencyGrant Number
Kavli FoundationUNSPECIFIED
Gordon and Betty Moore FoundationUNSPECIFIED
European Commission Marie Curie Actions (FP7-COFUND)UNSPECIFIED
NASA Hubble FellowshipHF-51275
Subject Keywords: galaxies: high-redshift; submillimeter: galaxies; surveys
Issue or Number:1
Record Number:CaltechAUTHORS:20140117-141509742
Persistent URL:
Official Citation:Extragalactic Millimeter-wave Point-source Catalog, Number Counts and Statistics from 771 deg2 of the SPT-SZ Survey L. M. Mocanu et al. 2013 ApJ 779 61
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:43438
Deposited By: Ruth Sustaita
Deposited On:17 Jan 2014 22:48
Last Modified:10 Nov 2021 16:37

Repository Staff Only: item control page