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
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (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.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2020 |
| Autor(en): | Pereira, Jorge ; Arcones, Almudena ; Bliss, Julia ; Montes, Fernando |
| Art des Eintrags: | Bibliographie |
| Titel: | Nucleosynthesis of "Light" Heavy Nuclei in Neutrino-driven Winds. Role of (α,n) reactions |
| Sprache: | Englisch |
| Publikationsjahr: | 21 Oktober 2020 |
| Ort: | Bristol |
| Verlag: | IOP Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Physics: Conference Series |
| Jahrgang/Volume einer Zeitschrift: | 1668 |
| Kollation: | 8 Seiten |
| DOI: | 10.1088/1742-6596/1668/1/012033 |
| Zugehörige Links: | |
| Kurzbeschreibung (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. |
| Freie Schlagworte: | nucleosynthesis, weak r-process, nuclear reactions, supernova, neutrino winds, r-limited stars |
| ID-Nummer: | Artikel-ID: 012033 |
| Zusätzliche Informationen: | Nuclear Physics in Astrophysics IX (NPA-IX), 15-20 September 2019, Frankfurt, Germany; Erstveröffentlichung |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 530 Physik |
| Fachbereich(e)/-gebiet(e): | 05 Fachbereich Physik 05 Fachbereich Physik > Institut für Kernphysik |
| Hinterlegungsdatum: | 02 Aug 2024 06:48 |
| Letzte Änderung: | 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) [Gegenwärtig angezeigt]
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