A MEASUREMENT OF SECONDARY COSMIC MICROWAVE BACKGROUND ANISOTROPIES FROM THE 2500 SQUARE-DEGREE SPT-SZ SURVEY
(ProQuest: ... denotes formulae and/or non-USASCII text omitted) We present measurements of secondary cosmic microwave background (CMB) anisotropies and cosmic infrared background (CIB) fluctuations using data from the South Pole Telescope (SPT) covering the complete 2540 deg super(2) SPT-SZ survey...
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Published in | The Astrophysical journal Vol. 799; no. 2; pp. 1 - 22 |
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Main Authors | , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
United States
Institute of Physics (IOP)
01.02.2015
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Subjects | |
Online Access | Get full text |
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Summary: | (ProQuest: ... denotes formulae and/or non-USASCII text omitted) We present measurements of secondary cosmic microwave background (CMB) anisotropies and cosmic infrared background (CIB) fluctuations using data from the South Pole Telescope (SPT) covering the complete 2540 deg super(2) SPT-SZ survey area. Data in the three SPT-SZ frequency bands centered at 95, 150, and 220 GHz, are used to produce six angular power spectra (three single-frequency auto-spectra and three cross-spectra) covering the multipole range 2000 < l < 11,000 (angular scales 5' [> ~] [straighttheta] [> ~] 1'). These are the most precise measurements of the angular power spectra at l > 2500 at these frequencies. The main contributors to the power spectra at these angular scales and frequencies are the primary CMB, CIB, thermal and kinematic Sunyaev-Zel'dovich effects (tSZ and kSZ), and radio galaxies. We include a constraint on the tSZ power from a measurement of the tSZ bispectrum from 800 deg super(2) of the SPT-SZ survey. We measure the tSZ power at 143 GHz to be ... mu K super(2) and the kSZ power to be ... mu K super(2). The data prefer positive kSZ power at 98.1% CL. We measure a correlation coefficient of ... between sources of tSZ and CIB power, with [xi] < 0 disfavored at a confidence level of 99.0%. The constraint on kSZ power can be interpreted as an upper limit on the duration of reionization. When the post-reionization homogeneous kSZ signal is accounted for, we find an upper limit on the duration Delta z < 5.4 at 95% CL. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 AC02-07CH11359 FERMILAB-PUB-14-372-A; arXiv:1408.3161 USDOE Office of Science (SC), High Energy Physics (HEP) |
ISSN: | 0004-637X 1538-4357 1538-4357 |
DOI: | 10.1088/0004-637X/799/2/177 |