H{alpha} and H{beta} lines of northern Be stars

Be stars are fast rotating early-type emission line stars. It is generally assumed that observed emission is generated in a rotating disk- like envelope, as supported by the...Be星（Be stars）是一类快速旋转的早型发射线恒星。学界普遍认为，观测到的辐射产生于旋转盘状包层中，该结论得到了……的支持。