Effects of rotation on the colours and line indices of stars. II - The effect on UVBY and H-beta indices

Abstract

The intrinsic uvby and H-beta indices of member stars of Alpha-Persei, Pleiades, and Scorpio-Centaurus association have been analyzed in detail for rotation effects. These stars range in spectral type from B0 to F0 and the observed effects of rotation are found to be in agreement with photometric effects calculated by Collins and Sonneborn (1977) for rigidly rotating B0 to F0 stars.