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Title: CMB/kSZ and Compton-y Maps from 2500 deg 2 of SPT-SZ and Planck Survey Data

Journal Article · · The Astrophysical Journal. Supplement Series
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We present component-separated maps of the primary cosmic microwave background/kinematic Sunyaev–Zel’dovich (SZ) amplitude and the thermal SZ Compton-y parameter, created using data from the South Pole Telescope (SPT) and the Planck satellite. These maps, which cover the ~2500 deg2 of the southern sky imaged by the SPT-SZ survey, represent a significant improvement over previous such products available in this region by virtue of their higher angular resolution $$1\buildrel{\,\prime}\over{.}25$$ for our highest-resolution Compton-y maps) and lower noise at small angular scales. In this work we detail the construction of these maps using linear combination techniques, including our method for limiting the correlation of our lowest-noise Compton-y map products with the cosmic infrared background. We perform a range of validation tests on these data products to test our sky modeling and combination algorithms, and we find good performance in all of these tests. Recognizing the potential utility of these data products for a wide range of astrophysical and cosmological analyses, including studies of the gas properties of galaxies, groups, and clusters, we make these products publicly available at http://pole.uchicago.edu/public/data/sptsz_ymap and on the NASA/LAMBDA website.

Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Argonne National Laboratory (ANL), Argonne, IL (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP); Kavli Foundation; Gordon and Betty Moore Foundation; Australian Research Council; Natural Sciences and Engineering Research Council of Canada (NSERC); Fonds de recherche du Quebec; German Research Foundation (DFG); Alfred P. Sloan Foundation; National Science Foundation (NSF)
Contributing Organization:
SPT-SZ Collaboration
Grant/Contract Number:
AC02-07CH11359; AC02-05CH11231; AC02-06CH11357
OSTI ID:
2281630
Alternate ID(s):
OSTI ID: 1824841; OSTI ID: 1923892; OSTI ID: 1969082
Report Number(s):
FERMILAB-PUB-21-117-AE; arXiv:2102.05033
Journal Information:
The Astrophysical Journal. Supplement Series, Journal Name: The Astrophysical Journal. Supplement Series Vol. 258 Journal Issue: 2; ISSN 0067-0049
Publisher:
American Astronomical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

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