Impact of uniform rotation on the stochastic excitation of acoustic modes in solar-like oscillators
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arXiv
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| Format: | Preprint |
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2024
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| author | Bessila, Leïla Van Ruys, Adrien Deckx Buriasco, Valentin Mathis, Stéphane Bugnet, Lisa García, Rafael A. Mathur, Savita |
| author_facet | Bessila, Leïla Van Ruys, Adrien Deckx Buriasco, Valentin Mathis, Stéphane Bugnet, Lisa García, Rafael A. Mathur, Savita |
| contents | We evaluate the impact of the rotation on the stochastic excitation of acoustic (p) modes in solar-like pulsators. First, we derive the forced wave equation taking rotation into account and we compute the source terms, which inject energy into the oscillations. We make use of the Rotating Mixing Length Theory (R-MLT) to assess how the convective root mean square velocities are modified by the Coriolis acceleration. Finally, we use the stellar structure and evolution code MESA combined with the stellar pulsation code GYRE to show that the resulting modes amplitudes are inhibited by rotation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_22550 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Impact of uniform rotation on the stochastic excitation of acoustic modes in solar-like oscillators Bessila, Leïla Van Ruys, Adrien Deckx Buriasco, Valentin Mathis, Stéphane Bugnet, Lisa García, Rafael A. Mathur, Savita Solar and Stellar Astrophysics We evaluate the impact of the rotation on the stochastic excitation of acoustic (p) modes in solar-like pulsators. First, we derive the forced wave equation taking rotation into account and we compute the source terms, which inject energy into the oscillations. We make use of the Rotating Mixing Length Theory (R-MLT) to assess how the convective root mean square velocities are modified by the Coriolis acceleration. Finally, we use the stellar structure and evolution code MESA combined with the stellar pulsation code GYRE to show that the resulting modes amplitudes are inhibited by rotation. |
| title | Impact of uniform rotation on the stochastic excitation of acoustic modes in solar-like oscillators |
| topic | Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2410.22550 |