Outflowing disk winds in B[e] Supergiants.

CURE, M.; RIAL, D.; CIDALE, L.

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC

Astronomical Society of the Pacific

Lugar: San Francisco, Estados Unidos; Año: 2006 vol. 355 p. 51 - 57

0004-6280

The effects of rapid rotation and bi--stability upon the density contrast between the equatorial and polar directions of a B[e] supergiant are investigated. Based on a new slow solution for different high rotational radiation--driven winds and the fact that bi--stability allows a change in the line--force parameters (alpha, k, and delta), the equatorial densities are about 10^2--10^3 times higher than the polar ones. These values are in qualitative agreement with the observations. This calculation also permits to obtain the aperture angle of the disk.