论文标题
星系和星系簇中的两个神秘的普遍暗物质巴里昂关系
Two mysterious universal dark matter-baryon relations in galaxies and galaxy clusters
论文作者
论文摘要
从1970年代开始，发现了连接暗物质和重子的一些关系，例如Tully-Fisher的关系。但是，星系中发现的许多关系与星系簇中的关系完全不同。在这里，我们报告了两个新的神秘的普遍关系，这些关系连接了星系和星系簇中的暗物质和重子。第一个关系表明，银河系或星系群集的总动力质量$ m_ {500} $具有幂律关系，其总baryonic质量$ m_b $在“病毒区域”中：$ m_ {500} \ propto m_b^a $，带有$ a \ 3/4 $。第二个关系表明，封闭的动力质量$ m_d $几乎与中央重心区域内的星系和星系簇的重型质量直接成正比：$ m_d \ propto m_b $。星系和星系簇中的暗物质与重子之间的密切关系表明，除了暗物质和重子之间可能存在一些未知的相互作用或相互作用。
Starting from the 1970s, some relations connecting dark matter and baryons were discovered, such as the Tully-Fisher relation. However, many of the relations found in galaxies are quite different from that found in galaxy clusters. Here, we report two new mysterious universal relations connecting dark matter and baryons in both galaxies and galaxy clusters. The first relation indicates that the total dynamical mass of a galaxy or a galaxy cluster $M_{500}$ has a power-law relation with its total baryonic mass $M_b$ within the `virial region': $M_{500} \propto M_b^a$, with $a \approx 3/4$. The second relation indicates that the enclosed dynamical mass $M_d$ is almost directly proportional to the baryonic mass for galaxies and galaxy clusters within the central baryonic region: $M_d \propto M_b$. The close relations between dark matter and baryons in both galaxies and galaxy clusters suggest that some unknown interaction or interplay except gravity might exist between dark matter and baryons.
