论文标题
中微子对宇宙大规模结构形态的影响
Neutrino effects on the morphology of cosmic large-scale structure
论文作者
论文摘要
在这项工作中，我们提出了对中微子对宇宙大规模结构（LSS）（即Minkowski功能（MFS））的强大探针。 LSS的形态可以由四个MF完全描述。该工具具有强大的统计能力，对各种系统学都具有鲁棒性，并且可以全面探测N点统计的所有顺序。通过首次使用一对高分辨率N体模拟，我们全面研究了中微子对LSS形态的微妙影响。对于理想的LSS调查卷$ \ sim1.73 $ gpc $^3 $/$ h^3 $，中性信号主要是从void区域中检测到的，其级别的高度高达$ \ thoughsim10σ$和$ \ \ \ floughsim300σ$，分别为CDM和总物质密度磁场。这证明了其在雄心勃勃的LSS调查的数据分析中大大改善中微子质量限制的巨大潜力。
In this work, we propose a powerful probe of neutrino effects on the large-scale structure (LSS) of the Universe, i.e., Minkowski functionals (MFs). The morphology of LSS can be fully described by four MFs. This tool, with strong statistical power, is robust to various systematics and can comprehensively probe all orders of N-point statistics. By using a pair of high-resolution N-body simulations, for the first time, we comprehensively studied the subtle neutrino effects on the morphology of LSS. For an ideal LSS survey of volume $\sim1.73$ Gpc$^3$/$h^3$, neutrino signals are mainly detected from void regions with a significant level up to $\thicksim 10σ$ and $\thicksim 300σ$ for CDM and total matter density fields, respectively. This demonstrates its enormous potential for much improving the neutrino mass constraint in the data analysis of up-coming ambitious LSS surveys.
