Linked from
The 12 pages that link to Stellar rotation, each with the reason it gives.
Blue stragglerRelated: Rapid rotation can preserve clues to recent mass gain or merger history.
PleiadesRelated: Rotation affects the colors and inferred ages of young cluster stars.
Stellar coreRelated: Rotation can redistribute core material and alter the star’s later evolution.
Be starRelated: Rapid rotation helps Be stars approach the speeds needed to place gas into orbit.
Gamma CassiopeiaeRelated: Its rapid rotation helps move material into the star’s surrounding disk.