Collaborative Research: Voids and Void Galaxies

合作研究：空洞和空洞星系

基本信息

批准号：
0071153
负责人：
Renyue Cen
金额：
$ 6.05万
依托单位：
Princeton University
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2000
资助国家：
美国
起止时间：
2000-06-01 至 2004-05-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0071153&HistoricalAwards=false
关键词：
Collaborative Research Voids Void Galaxies

项目摘要

CenAST-0071153This is a collaborative research project with Michael S Vogeley at Drexel University (AST0071201). The goal of this research is to construct detailed models (using an Adaptive Mesh Refinement code which allows for finer spatial resolution than previous models) of voids and their constituent galaxies and compare these models with data from the Sloan Digital Sky Survey (SDSS). These comparisons will then be used to set constraints on different cosmological models, the structure and dynamics of voids, and to investigate how galaxies form and evolve in a low density environment. The investigators propose to study the lowest density regions of the universe (called Voids). Voids play a critical role in the evolution of large scale structure and galaxy formation in the universe, yet they are poorly understood and poorly studied.The proposors will conduct theoretical computer modeling of void formation and test these models by comparing them with observations of galaxy densities and spatial distributions obtained from the Sloan Digital Sky Survey. Since these computer models will each depend on input parameters which are different for different types of cosmology, the comparison will help identify which cosmological models are correct. Funding for this project was provided by the NSF program for Extragalactic Astronomy & Cosmology (AST/EXC).***

Cenast-0071153This是与Drexel University（AST0071201）的Michael S Vogeley的合作研究项目。这项研究的目的是构建空隙及其组成的星系的详细模型（使用自适应网格改进代码，该模型允许比以前的模型更精细的空间分辨率），并将这些模型与Sloan Digital Sky Survey（SDSS）的数据进行比较。然后，这些比较将用于在不同的宇宙学模型，空隙的结构和动力学上设置约束，并研究星系如何在低密度环境中形成和发展。研究人员建议研究宇宙的最低密度区域（称为voids）。空隙在宇宙中大规模结构和星系形成的演变中起关键作用，但对它们的理解却很少，研究的研究很少。提议者将对空隙形成的理论计算机建模进行理论计算机建模，并通过将它们与从Sloan数字天空调查中获得的星系密度和空间分布进行比较来测试这些模型。由于这些计算机模型每个都取决于输入参数，而输入参数对于不同类型的宇宙学是不同的，因此比较将有助于确定哪些宇宙学模型是正确的。该项目的资金由NSF外乳术天文学和宇宙学计划（AST/EXC）提供。***