标题： 在C3VO巡天中于$2<z<5$处发现大规模结构 显示英文标题

标题： Discovering Large-Scale Structure at $2<z<5$ in the C3VO Survey

摘要： C3VO（VUDS和ORELSE的制图聚类构建）巡天是一项正在进行的成像和光谱活动，旨在绘制至$z\sim5$结构增长的地图，并诞生于可视多目标光谱仪超深巡天与大尺度环境红移演化观测（ORELSE）巡天的结合。 正如我们之前使用ORELSE巡天所完成的那样，我们在三个C3VO区域以$2<z<5$为范围应用了我们的技术，即Voronoi镶嵌蒙特卡罗（VMC）映射，以搜索意外的星系过度密集区。 我们也对模拟星系的虚拟观测应用了相同的技术，这些星系的属性来自半解析模型GAlaxy Evolution and Assembly，目的是评估我们的搜索算法在不同红移、总质量以及光谱红移比例下的有效性。 我们发现对于$\log (M_{z=0}/M_{\odot}) > 14$和$2<z<4$，其完整性和纯度值约为30%-50%，并且对质量和红移有很强的依赖性，在最佳情况下，分别达到$\sim$的80%和$\sim$的70%的值，适用于$\log (M_{z=0}/M_{\odot}) > 14.5$。 在C3VO区域，我们能够恢复许多文献中已知的结构，同时也发现了数百个新的过度密度候选者，再次展示了当应用于更高红移的宽场光学和红外星系演化巡天中的VMC映射的强大能力。 显示英文摘要

摘要： The Charting Cluster Construction with VUDS and ORELSE (C3VO) survey is an ongoing imaging and spectroscopic campaign aiming to map out the growth of structure up to $z\sim5$ and was born from the combination of the Visible Multi-Object Spectrograph Ultra Deep Survey and the Observations of Redshift Evolution in Large-Scale Environments (ORELSE) survey. As we previously accomplished with the ORELSE survey, we apply our technique known as Voronoi tessellation Monte Carlo (VMC) mapping to search for serendipitous galaxy overdensities at $2<z<5$ in the three C3VO fields. We also apply the same technique to mock observations of simulated galaxies with properties derived from the GAlaxy Evolution and Assembly semianalytic model in order to judge the effectiveness of our search algorithm as a function of redshift, total mass, and fraction of spectroscopic redshifts. We find completeness and purity values of the order of 30-50\% for $\log (M_{z=0}/M_{\odot}) > 14$ and $2<z<4$, with a strong dependence on mass and redshift, with values as high as $\sim$80\% and $\sim$70\%, respectively, in the best-case scenario for $\log (M_{z=0}/M_{\odot}) > 14.5$. In the C3VO fields, we were able to recover many of the previously known structures in the literature as well as find hundreds of new overdensity candidates, once again demonstrating the powerful capabilities of VMC mapping when applied to wide-field optical and infrared galaxy evolution surveys at ever higher redshifts.