论文标题
在星系簇中，暗物质与重型物质的比率线性测试
A test of linearity of the ratio of dark matter to baryonic matter in galaxy clusters
论文作者
论文摘要
我们搜索暗物质与重型物质的比率是星系簇的半径函数，这是由Lovas（Arxiv：2206.11431）最近的结果激励的，他发现了Sparc样品中各种星系套件的线性。为了进行分析，我们使用了来自Hiflugcs样本的54个非冷核群集的样本。我们找不到任何证据表明上述比率的线性趋势是单个簇的半径的函数。然后，我们重复此分析的堆叠样品，这也不显示该线性。因此，Lovas发现的线性缩放并不是所有尺度上暗物质光环的通用特性。
We search for a linearity in the ratio of dark matter to baryonic matter as a function of radius for galaxy clusters, motivated by a recent result by Lovas (arXiv:2206.11431), who has discovered such a linearity for a diverse suite of galaxies in the SPARC sample. For our analysis, we used a sample of 54 non-cool core clusters from the HIFLUGCS sample. We do not find any evidence for a linear trend in the aforementioned ratio as a function of radius for individual clusters. We then repeat this analysis for the stacked sample, which also does not show this linearity. Therefore, the linear scaling found by Lovas is not a universal property of dark matter haloes at all scales.
