Sp. obs. of rapidly rotating stars in the Pleiades

Radial velocities for the early-type stars in the Pleiades cluster have always been challenging to measure because of the significant rotational broadening of the spectral...昴星团（Pleiades cluster）中早型星的视向速度（radial velocities）测量长期以来始终颇具挑战，究其原因在于这类天体的光谱存在显著的转动致宽（rotational broadening）效应……