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| Paper: |
Theoretical Instability Domains of Massive Stars |
| Volume: |
462, Progress in Solar/Stellar Physics with Helio- and Asteroseismology |
| Page: |
27 |
| Authors: |
Godart, M.; Dupret, M.-A.; Noels, A.; Montalbán, J.; Ventura, P. |
| Abstract: |
Massive stars are characterized by a large radiation over gas pressure ratio. With increasing stellar initial mass, they suffer stronger stellar winds, and the induced mass-loss affects the evolution and internal structure on the main sequence and on the post-main sequence. Recent ground-based observations and space missions have shown the presence of pulsations in massive stars, such as acoustic and gravity modes excited by the κ-mechanism and even solar-like
oscillations. Strange modes could also be excited in the most massive stars (Aerts et al. 2010). We
computed evolutionary tracks and non-adiabatic
frequencies for initial masses ranging
from 15 to 70 M☉ on the main sequence and on the post-main sequence taking mass loss into account and we discuss in this paper the results for 25 M☉ models. |
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