SMALL ANGULAR SCALE MEASUREMENTS OF THE COSMIC MICROWAVE BACKGROUND TEMPERATURE POWER SPECTRUM FROM QUaD

SMALL ANGULAR SCALE MEASUREMENTS OF THE COSMIC MICROWAVE BACKGROUND TEMPERATURE POWER SPECTRUM FROM QUaD
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宇宙微波背景温度功率谱的小角尺度测量

DOI:
10.1088/0004-637x/700/2/l187
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发表时间:
2009
期刊:
The Astrophysical Journal
影响因子:
--
通讯作者:
Friedman R
Friedman R
中科院分区:
--
文献类型:
--
作者:
Friedman R

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我们给出了四元望远镜第二个和第三个观测季在多极范围2000<ℓ<3000范围内宇宙微波背景辐射温度各向异性的测量结果。在掩蔽最亮的点源后,我们的结果仅与主要的Λ清洁发展机制预期一致。我们使用一个根据我们自己的亮源观测校准的模型,以及对源发现和掩蔽过程的完整模拟,来估计剩余(未屏蔽)射电点源的贡献。包括这一贡献略微改进了χ2。我们还将标准的Sunyaev-Zel‘dovich(SZ)模板适用于带宽功率,没有看到SZ贡献的有力证据,这与σ8≈0.8中的预期相同。
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 χ 2. 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 σ 8≈ 0.8.
QUaD 望远镜的准光学设计
DOI: 10.1117/12.551680
发表时间: 2004
期刊: Physical Review D
影响因子: 5
作者:
G. Cahill;C. O'sullivan;J. Murphy;W. Lanigan;E. Gleeson;P. Ade;J. Bock;M. Bowden;J. Carlstrom;S. Church;K. Ganga;W. Gear;J. Harris;J. Hinderks;Wayne Hu;J. Kovac;A. Lange;E. Leitch;B. Maffei;O. Mallie;S. Melhuish;A. Orlando;G. Pisano;L. Piccirillo;C. Pryke;B. Rusholme;A. Taylor;K. Thompson;M. Zemcov
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影响因子: --
作者:
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通讯作者: QUaD collaboration J. R. Hinderks;P. Ade;J. Bock;M. Bowden;M. L. Brown;G. Cahill;J. Carlstrom;P. G. Castro;S. Church;T. Culverhouse;R. Friedman;K. Ganga;W. Gear;S. Gupta;J. Harris;V. Haynes;B. Keating;J. Kovac;E. Kirby;A. E. Lange;E. Leitch;O. Mallie;S. Melhuish;Y. Memari;J. A. Murphy;A. Orlando;R. Schwarz;C. O'Sullivan;L. Piccirillo;C. Pryke;N. Rajguru;B. Rusholme;A. Taylor;K. Thompson;C. Tucker;A. H. Turner;E. Y. S. Wu;M. University;Nasa Goddard Cardiff University;Jpl Caltech University of Edinburgh;U. Cambridge;National University of Ireland Maynooth;U. Chicago;Universidade T'ecnica de Lisboa;Laboratoire Apccnrs;U. Manchester;University of California San Diego University College London-University-of-California-San-Diego-University-2303464988
Parkes-MIT-NRAO (PMN) 无线电源地图目录覆盖 4.85GHz 时小于 -88 度的 Delta 小于 -37 度
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发表时间: 1994
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