Intrinsic parameters of massive OB-stars

Herrero, A.
Bibliographical reference

Space Science Reviews, Volume 66, Issue 1-4, pp. 137-145

Advertised on:
3
1993
Number of authors
1
IAC number of authors
0
Citations
28
Refereed citations
27
Description
We present the results of our observations of stars of type O5 and earlier and show that inclusion of the line blocking between 228 and 912 A solves the problem found by Herrero et al. (1992) in the determination of their stellar parameters. We study the influence of the line blocking and other effects on the mass and helium discrepancies and show that the first one is reduced by the use of spherical, non hydrostatic model atmospheres and that the second one is probably due to exposure of CNO material.