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| Paper: |
P V and the Mass Loss Discrepancy in O Stars |
| Volume: |
348, Astrophysics in the Far Ultraviolet: Five Years of Discovery with FUSE |
| Page: |
118 |
| Authors: |
Massa, D.; Fullerton, A.W.; Prinja, R.K. |
| Abstract: |
Building upon a previous analysis of P v wind lines in LMC O stars, we analyze the P v wind lines in a sample of Galactic O stars which have empirical mass loss rates determined from either their radio fluxes or Hα profiles. Since the wind analysis provides a measure of dM/dt q where q is the ionization fraction of the ion, we determine q(P v) observationally. In spite of model predictions that q ∼ 1 for mid-O stars, we find q(P v) ≤ 0.15 throughout the O stars. We discuss the origin of this discrepancy. |
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