On the surface helium abundance of B-type hot subdwarf stars from the WD+MS channel of Type Ia supernovae

Rui-Jie Ji, Xiang-Cun Meng, Zheng-Wei Liu

The origin of intermediate helium (He)-rich hot subdwarfs are still unclear. Previous studies have suggested that some surviving Type Ia supernovae (SNe Ia) companions from the whi…