The coupling between pulsation and mass loss in massive stars

To what extent can pulsational instabilities resolve the mass-loss problem of massive stars? How important is pulsation in structuring and modulating the winds of these stars? What role does pulsation play in redistributing angular momentum in massive stars? Although I cannot offer answers to these questions, I hope at the very least to explain how they come to be asked.Comment: 12 pages, 1 figure, to appear in proceedings of "Unsolved Problems in Stellar Physics" conference (Cambridge, UK, July 2007

Can pulsational instabilities impact a massive star's rotational evolution?

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.Comment: 6 pages, to appear in Proc. IAU Symposium 250: Massive Stars as Cosmic Engine

06-16-1972 Perliminary Memorandum

Question presented: Whether Texas statutes are unconstitutional as violating due process and equal protection insofar as they permit a legitimate child to require support and maintenance from his natural father, while denying an illegitimate child the right to require his natural father to support and maintain him