标题： COBE-DMR第一年各向异性图中三点相关性的限制 显示英文标题

标题： Limits on Three-Point Correlations in the COBE-DMR First Year Anisotropy Maps

摘要： 我们计算了差分微波辐射计 (DMR) 第一年天图的三点温度相关函数，以寻找非高斯温度波动。 计算出的相关函数中观察到的波动水平过大，无法完全归因于仪器噪声。 然而，这些波动与预期由仪器噪声和天空信号叠加而产生的水平一致，该叠加源于初始波动的高斯幂律模型，其四极子归一化振幅为 17 $\mu$K，幂律谱指数 $n = 1$。 我们用各种预测函数形式对固有三点相关的振幅进行了限制。 显示英文摘要

摘要： We compute the three-point temperature correlation function of the {\it COBE} Differential Microwave Radiometer (DMR) first-year sky maps to search for non-Gaussian temperature fluctuations. The level of fluctuations seen in the computed correlation function are too large to be attributable solely to instrument noise. However the fluctuations are consistent with the level expected to result from a superposition of instrument noise and sky signal arising from a Gaussian power law model of initial fluctuations, with a quadrupole normalized amplitude of 17 $\mu$K and a power law spectral index $n = 1$. We place limits on the amplitude of intrinsic three-point correlations with a variety of predicted functional forms.