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  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., et al. (2020). Millimeter-wave point sources from the 2500 square degree SPT-SZ survey: Catalog and population statistics. The Astrophysical Journal, 900(1): 55. doi:10.3847/1538-4357/ab9df7.

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Everett, W. B., Author
Zhang, L., Author
Crawford, T. M., Author
Vieira, J. D., Author
Aravena, M., Author
Archipley, M. A., Author
Austermann, J. E., Author
Benson, B. A., Author
Bleem, L. E., Author
Carlstrom, J. E., Author
Chang, C. L., Author
Chapman, S., Author
Crites, A. T., Author
de Haan, T., Author
Dobbs, M. A., Author
George, E. M., Author
Halverson, N. W., Author
Harrington, N., Author
Holder, G. P., Author
Holzapfel, W. L., Author
Hrubes, J. D., AuthorKnox, L., AuthorLee, A. T., AuthorLuong-Van, D., AuthorMangian, A. C., AuthorMarrone, D. P., AuthorMcMahon, J. J., AuthorMeyer, S. S., AuthorMocanu, L. M., AuthorMohr, J. J.1, Author              Natoli, T., AuthorPadin, S., AuthorPryke, C., AuthorReichardt, C. L., AuthorReuter, C. A., AuthorRuhl, J. E., AuthorSayre, J. T., AuthorSchaffer, K. K., AuthorShirokoff, E., AuthorSpilker, J. S., AuthorStalder, B., AuthorStaniszewski, Z., AuthorStark, A. A., AuthorStory, K. T., AuthorSwitzer, E. R., AuthorVanderlinde, K., AuthorWeiß, A., AuthorWilliamson, R., Author more..
Affiliations:
1Optical and Interpretative Astronomy, MPI for Extraterrestrial Physics, Max Planck Society, ou_159895              

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 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 220 GHz. 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 20.4 mJy in 95, 150, and 220 GHz, 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.

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 Dates: 2020-08-31
 Publication Status: Published online
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 Rev. Type: -
 Identifiers: DOI: 10.3847/1538-4357/ab9df7
Other: LOCALID: 3267914
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Title: The Astrophysical Journal
Source Genre: Journal
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Publ. Info: Bristol; Vienna : IOP Publishing; IAEA
Pages: - Volume / Issue: 900 (1) Sequence Number: 55 Start / End Page: - Identifier: ISSN: 0004-637X
CoNE: https://pure.mpg.de/cone/journals/resource/954922828215_3