THE MASSIVE WINDS OF LUMINOUS PECULIAR B-TYPE STARS

The wind characteristics of a small group of luminous B-type stars are investigated. They present a ''momentum problem'', similar to but not as obvious as that seen in Wolf-Rayet stars. However, there is no vio lation of a fundamental limit since the energy to be extracted from th e radiation field is small. Moreover, their mass loss rates can be rou ghly reproduced in the context of a radiation-driven wind provided we make use of larger values for the radiative parameter k.