论文标题
吉多拉国王超级集群：使用Subaru Hyper Soprime-CAM在新超级群中映射新超级集物的光和暗物质
King Ghidorah Supercluster: Mapping the light and dark matter in a new supercluster at z=0.55 using the Subaru Hyper Suprime-Cam
论文作者
论文摘要
本文报告了我们发现的最大超级群集的发现，称为吉多拉国王超级集团（KGSC），$ z = 0.50-0.64 $在第三次公共数据发布中，超级suprime-cam Subaru策略计划（HSC-SSP PDR3）在690度$^2 $上，以及对于人星系和Darmaxy Matter Matter Matter Matter Matapping Matappping。 KGSC的主要结构包括在70个共同MPC上的三重宽弱透镜（WL）峰。在$ z> 0.5 $的情况下，这种广泛的WL检测只能使用HSC-SSP产生的宽场高品质图像才能实现。该结构在$ \ sim400 $ comemoving MPC量表上也与多个大型结构相连。整个场都有红色序列簇的显着密度（$δ= 14.7 \ pm4.5 $）。此外，在视线的前景中可以发现大规模的不足。根据大型数据分析，我们证实了恒星质量和暗物质分布的过度繁殖，并估计主结构的总质量为$ 1 \ times10^{16} $太阳能团体。此外，即将上映的宽场多物体光谱仪，例如Subaru Prime Focus谱仪，可能有助于为超过100 MPC量表以外的遥远超级散布器提供更多见解。
This paper reports our discovery of the most massive supercluster, termed the King Ghidorah Supercluster (KGSc), at $z=0.50-0.64$ in the Third Public Data Release of the Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP PDR3) over 690 deg$^2$, as well as an initial result for a galaxy and dark matter mapping. The primary structure of the KGSc comprises triple broad weak-lensing (WL) peaks over 70 comoving Mpc. Such extensive WL detection at $z>0.5$ can only currently be achieved using the wide-field high-quality images produced by the HSC-SSP. The structure is also contiguous with multiple large-scale structures across a $\sim400$ comoving Mpc scale. The entire field has a notable overdensity ($δ=14.7\pm4.5$) of red-sequence clusters. Additionally, large-scale underdensities can be found in the foreground along the line of sight. We confirmed the overdensities in stellar mass and dark matter distributions to be tightly coupled and estimated the total mass of the main structure to be $1\times10^{16}$ solar masses, according to the mock data analyses based on large-volume cosmological simulations. Further, upcoming wide-field multi-object spectrographs such as the Subaru Prime Focus Spectrograph may aid in providing additional insights into distant superclusters beyond the 100 Mpc scale.
