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Small angular scale measurements of the cosmic microwave background temperature power spectrum from QUaD

Friedman, R. B., Ade, Peter A. R., Bock, J., Bowden, Melanie, Brown, M. L., Cahill, G., Castro, P. G., Church, S., Culverhouse, T., Ganga, K., Gear, Walter Kieran, Gupta, Sujata, Hinderks, J., Kovac, J., Lange, A. E., Leitch, E., Melhuish, Simon John, Memari, Y., Murphy, J. A., Orlando, Angiola, O'Sullivan, C., Piccirillo, Lucio, Pryke, C., Rajguru, Nutan J., Rusholme, B., Schwarz, R., Taylor, A. N., Thompson, K. L., Turner, Abigail Helen, Wu, E. Y. S. and Zemcov, Michael 2009. Small angular scale measurements of the cosmic microwave background temperature power spectrum from QUaD. Astrophysical Journal. Letters 700 (2) , L187-L191. 10.1088/0004-637X/700/2/L187

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Abstract

We present measurements of the cosmic microwave background (CMB) radiation temperature anisotropy in the multipole range 2000 <ℓ< 3000 from the QUaD telescope's second and third observing seasons. After masking the brightest point sources our results are consistent with the primary ΛCDM expectation alone. We estimate the contribution of residual (un-masked) radio point sources using a model calibrated to our own bright source observations, and a full simulation of the source finding and masking procedure. Including this contribution slightly improves the χ2. We also fit a standard Sunyaev-Zel'dovich (SZ) template to the bandpowers and see no strong evidence of an SZ contribution, which is as expected for σ8 0.8.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Uncontrolled Keywords: Cosmic microwave background ; Cosmology: observations
Publisher: Institute of Physics
ISSN: 0004-637X
Last Modified: 03 Dec 2017 00:50
URI: http://orca.cf.ac.uk/id/eprint/7291

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