AI 中文总结
介绍LoVoCCS巡天,展示用第三代LSST科学管道减少观测数据的管道,通过对大力神超星系团观测验证管道数据产品,进行多平面弱引力透镜分析,估计超星系团总质量,确认其动力学质量因阿贝尔2147状态有偏差。
AI 中文摘要
本地体积完整星系团巡天(LoVoCCS)是对南部天空中一百多个附近(\(0.03 < z < 0.12\))、X射线发光(\(L_{500} > 10^{44} \text{ erg s}^{-1}\))星系团的体积完整巡天。该巡天观测于2025年12月结束,在每个区域达到了维拉·C·鲁宾天文台时空遗产巡天(LSST)第1 - 2年的深度,并为弱引力透镜科学提供了\(\lesssim 1''\)视场的观测。本文展示了使用第三代LSST科学管道减少观测数据的最新管道。利用大力神超星系团的近期观测来验证管道的数据产品,并对一个约\(16 \text{ deg}^2\)的包含阿贝尔2147、2151、2152及其他几个结构的复合体进行了广泛的多平面弱引力透镜分析。确认该复合体的动力学质量因阿贝尔2147的动力学状态而有偏差,其与近心点外约\(0.2 - 0.4 \text{ Gyr}\)一致,并估计该超星系团的总质量为\(8.9^{+1.7}_{-1.4} \times 10^{14}~M_{\odot}\)。
英文摘要
The Local Volume Complete Cluster Survey (LoVoCCS) is a volume-complete survey of over one-hundred nearby ($0.03 < z < 0.12$), X-ray luminous ($L_{500} > 10^{44} \text{ erg s}^{-1}$) galaxy clusters in the southern sky. Observations for the survey concluded in December 2025, reaching Vera C. Rubin Observatory's Legacy Survey of Space and Time (LSST) Year 1-2 depth in each field and providing observations with $\lesssim 1"$ seeing for weak lensing science. In this paper, we present the latest pipeline for reducing observations using the third-generation of the LSST Science Pipelines. We use recent observations of the Hercules Supercluster to validate the pipeline's data-products and conduct an extensive multi-plane weak-lensing analysis of a $\sim 16 \text{ deg}^2$ complex covering Abell 2147, 2151, 2152, and several additional structures. We confirm that the dynamical mass of the complex is biased due to the dynamical state of Abell 2147, which is consistent with being $\sim 0.2-0.4 \text{ Gyr}$ out-of periapsis, and estimate that the total mass of the supercluster is $8.9^{+1.7}_{-1.4} \times 10^{14}~M_{\odot}$.
CommentsSubmitted to ApJS