论文标题
超集群茧中的崩溃，连通性和星系种群：A2142的情况
Collapse, connectivity, and galaxy populations in supercluster cocoons: the case of A2142
论文作者
论文摘要
宇宙网络中最大的星系系统是星系，组，群集和细丝的超密集器，密度的过度区域。超级克鲁斯周围的低密度区域称为吸引或茧的盆地。在我的演讲中，我讨论了A2142超级收集器中的星系，组和细丝的特性及其在Redshift $ z \ 0.09 $上的茧。茧边界取决于超级收集器周围的最低密度区域。我们分析了超集群的结构，动态状态，连通性和星系含量，以及其高密度核心与群集A2142。我们表明，超级收集器的主体正在崩溃，围绕超收集器的长细丝与之脱离。具有非常古老的恒星种群的星系不仅在超级群中的集群和群体的中部，而且还位于茧中最贫穷的群体中。
The largest galaxy systems in the cosmic web are superclusters, overdensity regions of galaxies, groups, clusters, and filaments. Low-density regions around superclusters are called basins of attraction or cocoons. In my talk I discuss the properties of galaxies, groups, and filaments in the A2142 supercluster and its cocoon at redshift $z \approx 0.09$. Cocoon boundaries are determined by the lowest density regions around the supercluster. We analyse the structure, dynamical state, connectivity, and galaxy content of the supercluster, and its high density core with the cluster A2142. We show that the main body of the supercluster is collapsing, and long filaments which surround the supercluster are detached from it. Galaxies with very old stellar populations lie not only in the central parts of clusters and groups in the supercluster, but also in the poorest groups in the cocoon.
