Rotational Velocities of B, A, and Early‐F Narrow‐lined Stars

Projected rotational velocities for 58 B, A, and early‐F stars have been determined from high‐resolution spectroscopic observations made at Kitt Peak National Observatory with the coudé feed telescope. All the stars are slowly rotating with vsin i<60 km s −1 . Because of their low rotational velocities, 15 of the stars have been observed as prospective, early‐type, radial velocity standards.