Investigation of star formation in low-mass galaxies

恒星形成率（SFR）-恒星质量关系和星系-恒星质量函数（GSMF）是星系布居诊断的关键。精确地测量这些低质量的物质，可以限制低质量晕中星星形成的物理过程，以及低质量晕的宇宙学生长。恒星形成星系的SFR -质量关系填充了一个具有恒星质量/年龄级的SFR的主序列。该项目旨在探测低质量星系中的星星形成，并测量宇宙学SFR密度作为质量的函数。这一诊断将与最新的宇宙学模拟进行比较。观测数据将来自现有的成像和光谱测量数据，以便为4 MOST/ WAVES测量做准备。

The star-formation-rate (SFR) - stellar-mass relation and galaxy stellar mass function (GSMF) arekey galaxy population diagnostics. Measuring these accurately to low masses provides constraints onthe physics of star formation in, and the cosmological growth of, low-mass haloes. The SFR - massrelation of star-forming galaxies populates a main sequence with SFRs of order stellar mass / age.The project aims to probe star formation in low-mass galaxies and measure the cosmological SFRdensity as a function of mass. This diagnostic will be compared with the latest cosmologicalsimulations. The observational data will come from existing imaging and spectroscopic survey data,with a view to preparing for the 4MOST / WAVES survey.