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| Paper: |
Pulsations of Pre-White Dwarfs with Hydrogen-dominated Atmospheres |
| Volume: |
493, 19th European Workshop on White Dwarfs |
| Page: |
193 |
| Authors: |
Maeda, K.; Shibahashi, H. |
| Abstract: |
It is shown by a fully non-adiabatic analysis that nuclear reactions in the hydrogen burning-shell excite low-degree g-modes in the period range of about 40-200 s for the hydrogen-dominated atmosphere pre-white dwarf models with Teff= 40 000 K - 300 000 K. The amount of hydrogen has a significant influence on the instability domain of such pre-white dwarfs in the Hertzsprung-Russel (H-R) diagram. Hence, the thickness of hydrogen-dominated envelopes may be well constrained by observing the presence of the g-mode oscillations. |
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