ON THE WIND MOMENTUM PROBLEM OF O-TYPE STARS IN THE GALAXY

Citation
G. Israelian et K. Vyverman, ON THE WIND MOMENTUM PROBLEM OF O-TYPE STARS IN THE GALAXY, Astrophysics and space science, 254(1), 1997, pp. 51-60
Citations number
15
ISSN journal
0004640X
Volume
254
Issue
1
Year of publication
1997
Pages
51 - 60
Database
ISI
SICI code
0004-640X(1997)254:1<51:OTWMPO>2.0.ZU;2-W
Abstract
We have examined the wind momentum problem of O-type stars in the Gala xy. It is shown that the discrepancy between theoretical and empirical mass loss rates and terminal velocities can be reversed by using rece ntly updated values of force multiplier parameters. With these new val ues, the momentum problem found by former investigators is reversed so that there now appears to be more than enough radiation force in orde r to accelerate the stellar winds of a sample of Galactic O-type stars .