在7年WMAP温度天空图中寻找同心圆
A search for concentric circles in the 7-year WMAP temperature sky maps
摘要：
在最近对WMAP 7年温度天空图的分析中，Gurzadyan和Penrose声称找到了大爆炸前剧烈活动的证据，其形式是具有高度统计意义的同心低方差圆。在本文中，我们使用卡方统计量和匹配滤波器对这种同心低方差圆进行了独立搜索，并将从7年WMAP温度天空图中获得的结果与从LCDM模拟中获得的结果进行了比较。我们的主要发现如下：我们确实重现了Gurzadyan和Penrose在WMAP数据中观察到的声称的环结构，从而验证了他们的计算程序。然而，我们的模拟结果不同意Gurzadyan和Penrose提出的。相反，我们在模拟中获得了更大的方差，以至于观察到的WMAP天空图与通过这些统计数据测量的LCDM模型完全一致。
英文摘要：
In a recent analysis of the 7-year WMAP temperature sky maps, Gurzadyan and Penrose claim to find evidence for violent pre-Big Bang activity in the form of concentric low-variance circles at high statistical significance. In this paper, we perform an independent search for such concentric low-variance circles, employing both chi^2 statistics and matched filters, and compare the results obtained from the 7-year WMAP temperature sky maps with those obtained from LCDM simulations. Our main findings are the following: We do reproduce the claimed ring structures observed in the WMAP data as presented by Gurzadyan and Penrose, thereby verifying their computational procedures. However, the results from our simulations do not agree with those presented by Gurzadyan and Penrose. On the contrary we obtain a substantially larger variance in our simulations, to the extent that the observed WMAP sky maps are fully consistent with the LCDM model as measured by these statistics.
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。
