270亿粒子N体模拟数据库

2020年新增的N体数值模拟，有270亿个粒子，空间是500Mpc的立方，质量分辨率为单个粒子质量是8.5亿太阳质量，从红移30到0（时间跨度约138亿年）的宇宙大尺度结构演化，其中也包含星系与星系团，后期要在这个模拟基础上加上半解析模拟，做重新模拟，主要用来研究星系的形成与演化，用来跟观测的统计数据做对比，以及研究星系或星系群对宇宙大尺度结构环境的依赖，数据量约有60TBA newly added N-body numerical simulation in 2020, which consists of 27 billion particles within a cubic computational volume of 500 Mpc, with a mass resolution of 850 million solar masses per individual particle. This simulation tracks the evolution of cosmic large-scale structures from redshift 30 to 0, spanning a total time of approximately 13.8 billion years, and also includes galaxies and galaxy clusters. A follow-up re-simulation incorporating semi-analytical modeling will be conducted based on this base simulation. It is mainly used to study the formation and evolution of galaxies, compare with observational statistical data, and investigate the dependence of galaxies or galaxy groups on the cosmic large-scale structural environment, with a total data volume of approximately 60 TB.

搜集汇总

背景与挑战

背景概述

该数据集是一个基于270亿粒子的N体数值模拟，模拟了500Mpc立方空间内从红移30到0（约138亿年）的宇宙大尺度结构演化过程，质量分辨率为单个粒子8.5亿太阳质量。它主要用于研究星系形成与演化，并与观测统计数据对比，总数据量约为60TB。