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| Auteurs principaux: | , |
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| Format: | Preprint |
| Publié: |
2024
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| Sujets: | |
| Accès en ligne: | https://arxiv.org/abs/2401.09534 |
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| _version_ | 1866914163306004480 |
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| author | Corso, Nicholas Lai, Dong |
| author_facet | Corso, Nicholas Lai, Dong |
| contents | A number of stellar astrophysical phenomena, such as tidal novae and planetary engulfment, involve sudden injection of sub-binding energy in a thin layer within the star, leading to mass ejection of the stellar envelope. We use a 1D hydrodynamical model to survey the stellar response and mass loss for various amounts ($E_{\mathrm{dep}}$) and locations of the energy deposition. We find that the total mass ejection has a nontrivial dependence on $E_{\mathrm{dep}}$ due to the varying strengths of mass ejection events, which are associated with density/pressure waves breaking out from the stellar surface. The rapid occurrence of multiple breakouts may present a unique observational signature for sudden envelope heating events in stars. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_09534 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Mass Ejection Driven by Sudden Energy Deposition in Stellar Envelopes Corso, Nicholas Lai, Dong Solar and Stellar Astrophysics A number of stellar astrophysical phenomena, such as tidal novae and planetary engulfment, involve sudden injection of sub-binding energy in a thin layer within the star, leading to mass ejection of the stellar envelope. We use a 1D hydrodynamical model to survey the stellar response and mass loss for various amounts ($E_{\mathrm{dep}}$) and locations of the energy deposition. We find that the total mass ejection has a nontrivial dependence on $E_{\mathrm{dep}}$ due to the varying strengths of mass ejection events, which are associated with density/pressure waves breaking out from the stellar surface. The rapid occurrence of multiple breakouts may present a unique observational signature for sudden envelope heating events in stars. |
| title | Mass Ejection Driven by Sudden Energy Deposition in Stellar Envelopes |
| topic | Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2401.09534 |