Can pulsational instabilities impact a massive star's rotational evolution?
Rich Townsend
Jim MacDonald
Department of Physics & Astronomy,
University of Delaware,
Newark, DE 19716,
USA
We investigate whether angular momentum transport due to unstable pulsation modes can play a significant role in the rotational evolution of massive stars. We find that these modes can redistribute appreciable angular momentum, and moreover trigger shear-instability mixing in the molecular weight gradient zone adjacent to stellar cores, with significant evolutionary impact.
Reference: To appear in Proc. IAU Symposium 250: "Massive Stars as Cosmic Engines", Hawaii, Dec 2007
Status: Conference proceedings
Weblink: http://arxiv.org/abs/0803.0347
Comments:
Email: rhdt@bartol.udel.edu