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arXiv 1301.0475astro-ph.CO
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WMAP7和WISE的互相关完整数据发布

Cross-correlation of WMAP7 and the WISE Full Data Release

András Kovács, István Szapudi, Benjamin R. Granett, Zsolt Frei

摘要:

我们测量了威尔金森微波各向异性探测器(WMAP)7年温度图和宽视场红外巡天探测器(WISE)星系图的全天数据发布的互相关。使用仔细的映射和掩蔽技术,我们发现一个积极的互相关信号。结果与Lambda-CDM宇宙完全一致,尽管在统计上不显著。我们的研究结果是强大的,对改变银河系的纬度切割从|b| >10到|b| >20,没有颜色依赖时,我们使用WMAP Q,V或W地图检测。我们确认了在初步数据发布中发现的更高的显著性相关性。重要性的变化与宇宙的变化是一致的。

英文摘要:

We measured the cross-correlation of the Wilkinson Microwave Anisotropy Probe (WMAP) 7 year temperature map and the full sky data release of the Wide-field Infrared Survey Explorer (WISE) galaxy map. Using careful mapmaking and masking techniques we find a positive cross-correlation signal. The results are fully consistent with a Lambda-CDM Universe, although not statistically significant. Our findings are robust against changing the galactic latitude cut from |b|>10 to |b|>20 and no color dependence was detected when we used WMAP Q, V or W maps. We confirm higher significance correlations found in the preliminary data release. The change in significance is consistent with cosmic variance.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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