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

• Main Authors: Chown, R, Omori, Y, Aylor, K, Benson, BA, Bleem, LE, Carlstrom, JE, Chang, CL, Cho, HM, 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
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: eScholarship, University of California 2018
• Subjects: cosmology: observations; cosmic background radiation; Astronomy & Astrophysics; Astronomical and Space Sciences; Organic Chemistry; Physical Chemistry; Atomic; Molecular; Nuclear; Particle and Plasma Physics; Physical Chemistry (incl. Structural); South Pole; South pole
• Online Access: https://escholarship.org/uc/item/1fb8s6h4

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.