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Maps of the Southern Millimeter-wave Sky from Combined 2500 deg^2 SPT-SZ and Planck Temperature Data

Chown, R. and Crites, A. T. (2018) Maps of the Southern Millimeter-wave Sky from Combined 2500 deg^2 SPT-SZ and Planck Temperature Data. Astrophysical Journal Supplement Series, 239 (1). Art. No. 10. ISSN 1538-4365.

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We present three maps of the millimeter-wave sky created by combining data from the South Pole Telescope (SPT) and the Planck satellite. We use data from the SPT-SZ survey, a survey of 2540 deg^2 of the the sky with arcminute resolution in three bands centered at 95, 150, and 220 GHz, and the full-mission Planck temperature data in the 100, 143, and 217 GHz bands. A linear combination of the SPT-SZ and Planck data is computed in spherical harmonic space, with weights derived from the noise of both instruments. This weighting scheme results in Planck data providing most of the large-angular-scale information in the combined maps, with the smaller-scale information coming from SPT-SZ data. A number of tests have been done on the maps. We find their angular power spectra to agree very well with theoretically predicted spectra and previously published results.

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Additional Information:© 2018 American Astronomical Society. Received 2018 April 4; revised 2018 October 1; accepted 2018 October 4; published 2018 November 12. The South Pole Telescope program is supported by the National Science Foundation through grant PLR-1248097. Partial support is also provided by the NSF Physics Frontier Center grant PHY-0114422 to the Kavli Institute of Cosmological Physics at the University of Chicago, the Kavli Foundation, and the Gordon and Betty Moore Foundation through Grant GBMF#947 to the University of Chicago. C.R. acknowledges support from the Australian Research Council's Future Fellowships scheme (FT150100074). Work at Argonne National Laboratory was supported under U.S. Department of Energy contract DE-AC02-06CH11357. This work has made use of computations performed on Guillimin, managed by Calcul Quebec and Compute Canada (funded by CFI, MESI, and FRQNT). The McGill authors acknowledge funding from the Natural Sciences and Engineering Research Council of Canada, Canadian Institute for Advanced Research, and Canada Research Chairs program. Facilities: NSF/US Department of Energy 10 m South Pole Telescope (SPT) - , European Space Agency (ESA) Planck Space Observatory Mission - . HEALPix/healpy (Górski et al. 2005), PolSpice (Chon et al. 2004), SciPy.
Funding AgencyGrant Number
Kavli FoundationUNSPECIFIED
Gordon and Betty Moore Foundation947
Australian Research CouncilFT150100074
Department of Energy (DOE)DE-AC02-06CH11357
Canada Foundation for InnovationUNSPECIFIED
Ministère de l'Économie et de l'InnovationUNSPECIFIED
Fonds de recherche du Québec - Nature et technologies (FRQNT)UNSPECIFIED
Natural Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
Canadian Institute for Advanced Research (CIFAR)UNSPECIFIED
Canada Research Chairs ProgramUNSPECIFIED
Subject Keywords:cosmology: observations – cosmic background radiation
Record Number:CaltechAUTHORS:20181114-080031304
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Official Citation:R. Chown et al 2018 ApJS 239 10
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:90883
Deposited By: Tony Diaz
Deposited On:14 Nov 2018 16:59
Last Modified:14 Nov 2018 16:59

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