Pereira, Jorge ; Arcones, Almudena ; Bliss, Julia ; Montes, Fernando (2020)
Nucleosynthesis of "Light" Heavy Nuclei in Neutrino-driven Winds. Role of (α,n) reactions.
In: Journal of Physics: Conference Series, 1668
doi: 10.1088/1742-6596/1668/1/012033
Article, Bibliographie
This is the latest version of this item.
Abstract
Neutrino-driven winds following core collapse supernovae have been proposed as a suitable site where the so-called light heavy elements (between Sr to Ag) can be synthetized. For moderately neutron-rich winds, (α,n) reactions play a critical role in the weak r process, becoming the main mechanism to drive nuclear matter towards heavier elements. In this paper we summarize the sensitivity of network-calculated abundances to the astrophysical conditions, and to uncertainties in the (α,n) reaction rates. A list of few (α,n) reactions were identified to dominate the uncertainty in the calculated elemental abundances. Measurements of these reactions will allow to identify the astrophysical conditions of the weak r process by comparing calculated/observed abundances in r-limited stars.
| Item Type: | Article |
|---|---|
| Erschienen: | 2020 |
| Creators: | Pereira, Jorge ; Arcones, Almudena ; Bliss, Julia ; Montes, Fernando |
| Type of entry: | Bibliographie |
| Title: | Nucleosynthesis of "Light" Heavy Nuclei in Neutrino-driven Winds. Role of (α,n) reactions |
| Language: | English |
| Date: | 21 October 2020 |
| Place of Publication: | Bristol |
| Publisher: | IOP Publishing |
| Journal or Publication Title: | Journal of Physics: Conference Series |
| Volume of the journal: | 1668 |
| Collation: | 8 Seiten |
| DOI: | 10.1088/1742-6596/1668/1/012033 |
| Corresponding Links: | |
| Abstract: | Neutrino-driven winds following core collapse supernovae have been proposed as a suitable site where the so-called light heavy elements (between Sr to Ag) can be synthetized. For moderately neutron-rich winds, (α,n) reactions play a critical role in the weak r process, becoming the main mechanism to drive nuclear matter towards heavier elements. In this paper we summarize the sensitivity of network-calculated abundances to the astrophysical conditions, and to uncertainties in the (α,n) reaction rates. A list of few (α,n) reactions were identified to dominate the uncertainty in the calculated elemental abundances. Measurements of these reactions will allow to identify the astrophysical conditions of the weak r process by comparing calculated/observed abundances in r-limited stars. |
| Uncontrolled Keywords: | nucleosynthesis, weak r-process, nuclear reactions, supernova, neutrino winds, r-limited stars |
| Identification Number: | Artikel-ID: 012033 |
| Additional Information: | Nuclear Physics in Astrophysics IX (NPA-IX), 15-20 September 2019, Frankfurt, Germany; Erstveröffentlichung |
| Classification DDC: | 500 Science and mathematics > 530 Physics |
| Divisions: | 05 Department of Physics 05 Department of Physics > Institute of Nuclear Physics |
| Date Deposited: | 02 Aug 2024 06:48 |
| Last Modified: | 02 Aug 2024 06:48 |
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Nucleosynthesis of "Light" Heavy Nuclei in Neutrino-driven Winds. Role of (α,n) reactions. (deposited 29 Jul 2024 09:38)
- Nucleosynthesis of "Light" Heavy Nuclei in Neutrino-driven Winds. Role of (α,n) reactions. (deposited 02 Aug 2024 06:48) [Currently Displayed]
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