标题： NVSS射电调查中没有冷斑的证据 显示英文标题

标题： No evidence for the cold spot in the NVSS radio survey

摘要： 我们重新审视最近关于NVSS巡天中射电源的数量和亮度存在“冷区”的说法，其位置与之前在WMAP中检测到的冷区一致。 在这种标准LCDM宇宙学模型中，这样的匹配冷区很难甚至不可能解释。 与这一说法相反，我们在考虑了NVSS中的系统效应，并仔细考虑了事后选择对统计显著性评估的影响后，没有发现射电冷区的显著证据。 显示英文摘要

摘要： We revisit recent claims that there is a "cold spot" in both number counts and brightness of radio sources in the NVSS survey, with location coincident with the previously detected cold spot in WMAP. Such matching cold spots would be difficult if not impossible to explain in the standard LCDM cosmological model. Contrary to the claim, we find no significant evidence for the radio cold spot, after including systematic effects in NVSS, and carefully accounting for the effect of a posteriori choices when assessing statistical significance.