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Maps of the Southern Millimeter-wave Sky from Combined 2500 deg2 SPT-SZ and Planck Temperature Data

  • Author(s): Chown, R
  • Omori, Y
  • Aylor, K
  • Benson, BA
  • Bleem, LE
  • Carlstrom, JE
  • Chang, CL
  • Cho, H-M
  • Crawford, TM
  • Crites, AT
  • de Haan, T
  • Dobbs, MA
  • Everett, WB
  • George, EM
  • Henning, JW
  • Halverson, NW
  • Harrington, NL
  • Holder, G
  • Holzapfel, WL
  • Hou, Z
  • Hrubes, JD
  • Knox, L
  • Lee, AT
  • Luong-Van, D
  • Marrone, DP
  • McMahon, JJ
  • Meyer, SS
  • Millea, M
  • Mocanu, LM
  • Mohr, JJ
  • Natoli, T
  • Padin, S
  • Pryke, C
  • Reichardt, CL
  • Ruhl, JE
  • Sayre, JT
  • Schaffer, KK
  • Shirokoff, E
  • Simard, G
  • Staniszewski, Z
  • Stark, AA
  • Story, KT
  • Vanderlinde, K
  • Vieira, JD
  • Williamson, R
  • Wu, WLK
  • et al.

Published Web Location

https://arxiv.org/abs/1803.10682v2
No data is associated with this publication.
Abstract

© 2018. The American Astronomical Society. All rights reserved. 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 deg2 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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