Radial velocities of the semi-detached Algol W UMi

Double-lined eclipsing binaries allow accurate and direct determination of fundamental parameters such as mass and radius for each component, and they provide important...双谱线食双星（Double-lined eclipsing binaries）能够对其每一颗子星的质量、半径等基本参数进行精确且直接的测定，同时它们还能提供重要的……