Rotating radiation driven winds of massive stars.

CURÉ, M.; CIDALE, L.; VENERO, R.

Hawaii

Congreso; Massive stars as cosmic engines - IAU Symposium 250; 2007

IAU

Radiation driven wind theory, taking into account the centrifugal force due to the stellar rotation, has been re-examined. For rotational speeds above about 75% of the critical velocity, the wind solution can switch to an alternative mode (slow solution), characterized by a much slower outward acceleration. Together with a moderately enhanced mass flux, the resulting lower speed outflow then implies a substantial enhancement in density, relative to the standard (or fast) solution. We present different applications of these slow solutions, that may explain wind features, as the outflowing disk from B[e] supergiants and the winds of A supergiants and its influence in the wind momentum luminosity (WML) relationship.