Maps of the Southern Millimeter-wave Sky from Combined 2500 deg2 SPT-SZ and Planck Temperature Data
- 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/1803.10682v2Abstract
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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