Dense Circumstellar Medium around Pulsating Massive Stars Powering Interacting Supernovae
Fuente:
arXiv
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866914126761033728 |
|---|---|
| author | Sengupta, Sutirtha Sujit, Das Sarangi, Arkaprabha |
| author_facet | Sengupta, Sutirtha Sujit, Das Sarangi, Arkaprabha |
| contents | We investigate the evolution of red supergiant (RSG) progenitors of core-collapse (CC) supernovae (SNe) with initial masses between $12-20~M_\odot$ focusing on the effects of enhanced mass loss due to pulsation-driven instabilities in their envelopes and subsequent dynamical ejections during advanced stages of nuclear burning. Using time-dependent mass loss from detailed MESA stellar evolution models, including a parameterized prescription for pulsation-driven superwinds and time-averaged mass loss rates attributed to resulting shock-induced ejections, we construct the circumstellar medium (CSM) before the SN explosion. We calculate resulting CSM density profiles and column densities considering the acceleration of the stellar wind. Our models produce episodes of enhanced mass loss $10^{-4}-10^{-2}~M_\odot~\rm{yr}^{-1}$ in the last centuries-decades before explosion forming dense CSM ($>10^{-15}~\rm{gcm}^{-3}$ at distances $<10^{15}$ cm) -- consistent with those inferred from multi-wavelength observations of Type II SNe such as SN~2023ixf and SN~2020ywx. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_27189 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Dense Circumstellar Medium around Pulsating Massive Stars Powering Interacting Supernovae Sengupta, Sutirtha Sujit, Das Sarangi, Arkaprabha Solar and Stellar Astrophysics High Energy Physics - Theory Computational Physics We investigate the evolution of red supergiant (RSG) progenitors of core-collapse (CC) supernovae (SNe) with initial masses between $12-20~M_\odot$ focusing on the effects of enhanced mass loss due to pulsation-driven instabilities in their envelopes and subsequent dynamical ejections during advanced stages of nuclear burning. Using time-dependent mass loss from detailed MESA stellar evolution models, including a parameterized prescription for pulsation-driven superwinds and time-averaged mass loss rates attributed to resulting shock-induced ejections, we construct the circumstellar medium (CSM) before the SN explosion. We calculate resulting CSM density profiles and column densities considering the acceleration of the stellar wind. Our models produce episodes of enhanced mass loss $10^{-4}-10^{-2}~M_\odot~\rm{yr}^{-1}$ in the last centuries-decades before explosion forming dense CSM ($>10^{-15}~\rm{gcm}^{-3}$ at distances $<10^{15}$ cm) -- consistent with those inferred from multi-wavelength observations of Type II SNe such as SN~2023ixf and SN~2020ywx. |
| title | Dense Circumstellar Medium around Pulsating Massive Stars Powering Interacting Supernovae |
| topic | Solar and Stellar Astrophysics High Energy Physics - Theory Computational Physics |
| url | https://arxiv.org/abs/2510.27189 |