Self Spin-up of Massive Stars


  Tomer Shacham  ,  Nir Shaviv  
Hebrew University of Jerusalem

We present a new explanation for the high spin of massive stars. We study the dynamics of continuum driven winds from rotating stars,
and develop an approximate analytical model.  We then discuss the evolution of stellar angular momentum, and show that just above the
Eddington limit, the winds are sufficiently concentrated towards the poles to spin up the star.