How to measure what cannot be seen: the dark matter that surrounds galaxies

这个项目旨在使用一种新的方法来测量暗物质，基于它弯曲周围时空的方式。这些新技术与最新一代澳大利亚天文设施的数据相结合，旨在使该项目能够对星系周围的暗物质进行首次直接测量。恒星与光晕的质量关系编码了控制星系形成和演化过程的基本信息，并代表了对结构形成的宇宙学模型的关键测试。该项目旨在测量引力透镜效应，它可以测量单个星系周围暗物质晕的总质量，从而测量恒星与晕的质量关系。

This project aims to use a new approach to measuring dark matter, based on the way that it curves spacetime around it. These new techniques, combined with data from the latest generation of Australian astronomical facilities, are designed to enable the project to make the first direct measurements of the dark matter that surrounds galaxies. The stellar-to-halo mass relation encodes basic information about the processes that govern galaxy formation and evolution, and represents a crucial test for cosmological models of structure formation. The project aims to measure the effect of gravitational lensing, which enable the measurement of the total masses of the dark matter halos around individual galaxies, and thus measurement of the stellar-to-halo mass relation.