We summarize new results for the locations of the satellites of isolated host galaxies that were presented at the 237th meeting of the American Astronomical Society. Using 3575 host-satellite systems, we investigated the spatial distributions of the satellites with respect to their hosts using a Mean Resultant Length (MRL) statistic. In agreement with a previous analysis that relied on a less optimal statistic, we find that the satellites of isolated blue hosts have a strong tendency (>99.9999% confidence level) to be clustered toward one direction relative to their host. This also holds true for the full sample, but is driven by the “lopsidedness” of the satellite distributions around blue hosts. For red hosts (which comprise 76% of the sample), the MRL indicates only a marginal degree of lopsidedness (98.5% confidence level) in the satellite locations.

我们总结了在美国天文学会第 237 次会议上提出的孤立宿主星系卫星位置的新结果。使用 3575 个主机-卫星系统，我们使用平均合成长度 (MRL) 统计数据研究了卫星相对于其主机的空间分布。与先前依赖于不太理想的统计数据的分析一致，我们发现孤立的蓝色主机的卫星具有强烈的趋势（> 99.9999％的置信水平）相对于其主机向一个方向聚集。这也适用于完整样本，但受蓝色主机周围卫星分布的“不平衡”驱动。对于红色宿主（占样本的 76%），MRL 仅表明边际不平衡程度（98.