  We have analyzed high dispersion and high precision spectra of 5 blue
horizontal branch stars in the globular cluster M92 to establish that the
projected rotational velocity for these stars ranges from 15 to 40 \kms. This
is larger than that expected based on the rotation of their main sequence
progenitors, the spin down of rotation with age, and the conservation of
angular momentum. Possible explanations include a rapidly rotating stellar
core.
  An abundance analysis of these spectra of these blue HB stars in M92 yields
the same results as have been obtained from the giants in this cluster. There
is a hint of a trend of higher abundance as the projected surface rotational
velocity increases, which could be chance and requires confirmation.

Astrophysics