Intensity mapping cosmology with radio telescopes

用射电望远镜绘制宇宙学强度图

• 批准号: DE170100356
• 负责人: Dr Laura Wolz
• 金额: $ 18.38万
• 依托单位: The University of Melbourne
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Early Career Researcher Award
• 财政年份: 2017
• 资助国家: 澳大利亚
• 起止时间: 2017-01-01 至 2019-05-06
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DE170100356
• 关键词: Intensity; mapping; cosmology; radio; telescopes

This project aims to develop a versatile infra-structure for the data analysis of existing observations and future data. Cosmology using intensity mapping of hydrogen with radio telescopes is a key science area for the anticipated Square Kilometre Array. The results of available datasets will constrain the expansion rate of the Universe and the laws of gravity about 7 billion years ago, inaccessible by other observations. New techniques will improve the synergies between optical and radio data by measuring the gas content of optical galaxies. This is expected to advance knowledge of how the galaxy evolves.

该项目旨在开发一个多功能的基础设施，用于现有观测数据和未来数据的数据分析。利用射电望远镜绘制氢气强度图的宇宙学是预期的平方公里阵列的一个关键科学领域。现有数据集的结果将限制大约70亿年前宇宙的膨胀率和引力定律，其他观测无法获得这些结果。新技术将通过测量光学星系的气体含量来改善光学数据和射电数据之间的协同效应。预计这将促进人们对银河系如何演化的了解。