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| Paper: |
On the Systematic Errors of Quantitative Spectroscopy of O Stars |
| Volume: |
465, Four Decades of Massive Star Research - A Scientific Meeting in Honor of Anthony J. Moffat |
| Page: |
260 |
| Authors: |
Sabín-Sanjulián, C.; Simón-Díaz, S.; García, M.; Herrero, A.; Puls, J.; Castro, N. |
| Abstract: |
We use the IACOB grid-based automatic fitting algorithm to evaluate the effects
that uncertainties associated to rotational velocities and the presence of nebular
emission lines in H and He profiles could introduce in the analysis of O stars.
We find that the derived stellar and wind parameters can be biased
when clipping the nebular lines
because of loss of information due to nebular contamination
and that variations of ∼ 30% in rotational velocities
may lead to uncertainties of ∼ 20% in the derived stellar masses. |
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