The role of rotation on the yields of the two γ-ray emitters 26Al and 60Fe ejected by massive stars
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_ | 1866914300054994944 |
|---|---|
| author | Falla, Agnese Roberti, Lorenzo Limongi, Marco Chieffi, Alessandro |
| author_facet | Falla, Agnese Roberti, Lorenzo Limongi, Marco Chieffi, Alessandro |
| contents | We show that the observed 60Fe/26Al flux ratio provided by the SPectrometer on INTEGRAL satellite (0.24 +- 0.04) can be reproduced only if rotation is taken into account in the computation of the stellar models. Predictions from non-rotating stellar models yield to a significantly lower ratio (0.062), which is incompatible with the observed value. The adopted models and the associated yields are based on a combination of models already published by Limongi & Chieffi (2018) complemented by additional ones fully consistent with the original grid, allowing a finer resolution in the initial rotational velocity distribution. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_07705 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | The role of rotation on the yields of the two γ-ray emitters 26Al and 60Fe ejected by massive stars Falla, Agnese Roberti, Lorenzo Limongi, Marco Chieffi, Alessandro Solar and Stellar Astrophysics High Energy Astrophysical Phenomena We show that the observed 60Fe/26Al flux ratio provided by the SPectrometer on INTEGRAL satellite (0.24 +- 0.04) can be reproduced only if rotation is taken into account in the computation of the stellar models. Predictions from non-rotating stellar models yield to a significantly lower ratio (0.062), which is incompatible with the observed value. The adopted models and the associated yields are based on a combination of models already published by Limongi & Chieffi (2018) complemented by additional ones fully consistent with the original grid, allowing a finer resolution in the initial rotational velocity distribution. |
| title | The role of rotation on the yields of the two γ-ray emitters 26Al and 60Fe ejected by massive stars |
| topic | Solar and Stellar Astrophysics High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2508.07705 |