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- W4297787770 abstract "Super-Eddington luminosities in hydrostatic model atmospheres manifest themselves by the presence of gas pressure inversions. Such inversions are not an artifact of the assumption of hydrostatic equilibrium but can also be present in hydrodynamical model atmospheres. Only for very large mass loss rates hardly realized in supergiants will the inversions be removed. Instabilities may, however, still be present in such inversions, which is investigated for both H-rich and H-deficient late-type supergiant model atmospheres. A local, non-adiabatic, linear stability analysis reveals that sound waves can be amplified due to the strong radiative forces. However, despite the super-Eddington luminosities, the efficiency of the radiative instabilities is fairly low compared to for early-type stars with growth rates of $10^{-5} s^{-1}$." @default.
- W4297787770 created "2022-10-01" @default.
- W4297787770 creator A5024091569 @default.
- W4297787770 date "1997-10-15" @default.
- W4297787770 modified "2023-09-25" @default.
- W4297787770 title "The stability of late-type stars close to the Eddington limit" @default.
- W4297787770 doi "https://doi.org/10.48550/arxiv.astro-ph/9710158" @default.
- W4297787770 hasPublicationYear "1997" @default.
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