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)是星系群诊断的关键。对低质量的精确测量为低质量晕的恒星形成和宇宙学增长提供了限制。恒星形成星系的SFR-质量关系用恒星质量/年龄量级的SFR填充一个主序列。该项目旨在探测低质量星系中的恒星形成，并测量作为质量函数的宇宙SFR密度。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调查数据，以期为4MOST/WAVE调查做准备。

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.