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Radiation Driven Atmospheres of O-type stars: Constraints on the Mass–Luminosity Relation of Central Stars of Planetary Nebulae

  • A.W.A. Pauldrach (a1), T.L. Hoffmann (a1) and R.H. Méndez (a1)

Abstract

Recent advances in the modelling of stellar winds driven by radiation pressure make it possible to fit many wind-sensitive features in the UV spectra of hot stars, opening the way for a hydrodynamically consistent determination of stellar radii, masses, and luminosities from the UV spectrum alone. It is thus no longer necessary to assume a theoretical mass–luminosity relation. As the method has been shown to work for massive O stars, we are now able to test predictions from the post-AGB evolutionary calculations quantitatively for the first time. Here we present the first rather surprising consequences of using the new generation of model atmospheres for the analysis of a sample of central stars of planetary nebulae.

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References

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Hoffmann, T. L., Pauldrach, A. W. A., these proceedings
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Radiation Driven Atmospheres of O-type stars: Constraints on the Mass–Luminosity Relation of Central Stars of Planetary Nebulae

  • A.W.A. Pauldrach (a1), T.L. Hoffmann (a1) and R.H. Méndez (a1)

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