The \ion{H}{I}-rich Ultra-diffuse Galaxies follow the Extended Schmidt Law

Sai Zhai, Yong Shi, Zhi-Yu Zhang +7

The \ion{H}{I}-rich ultra-diffuse galaxies (HUDGs) offer a unique case for studies of star formation laws (SFLs) as they host low star formation efficiency (SFE) and low-metallicit…