Metallicity of galaxies from colors

There is a well known correlation between the mass and metallicity of star-forming galaxies. Because mass is correlated with luminosity, this relation is often exploited, when...恒星形成星系的质量与金属丰度之间存在公认的相关性。由于质量与光度存在相关性，因此该关系常被加以利用，当……