Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/27489
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Cescutti, G. | en_US |
dc.contributor.author | Hirschi, R. | en_US |
dc.contributor.author | Nishimura, N. | en_US |
dc.contributor.author | Hartogh, J. W. den | en_US |
dc.contributor.author | Rauscher, T. | en_US |
dc.contributor.author | Murphy, A. St J. | en_US |
dc.contributor.author | CRISTALLO, Sergio | en_US |
dc.date.accessioned | 2020-09-28T09:56:41Z | - |
dc.date.available | 2020-09-28T09:56:41Z | - |
dc.date.issued | 2018 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/27489 | - |
dc.description.abstract | The main s-process taking place in low-mass stars produces about half of the elements heavier than iron. It is therefore very important to determine the importance and impact of nuclear physics uncertainties on this process. We have performed extensive nuclear reaction network calculations using individual and temperature-dependent uncertainties for reactions involving elements heavier than iron, within a Monte Carlo framework. Using this technique, we determined the uncertainty in the main s-process abundance predictions due to nuclear uncertainties linked to weak interactions and neutron captures on elements heavier than iron. We also identified the key nuclear reactions dominating these uncertainties. We found that β-decay rate uncertainties affect only a few nuclides near s-process branchings, whereas most of the uncertainty in the final abundances is caused by uncertainties in neutron-capture rates, either directly producing or destroying the nuclide of interest. Combined total nuclear uncertainties due to reactions on heavy elements are in general small (less than 50 per cent). Three key reactions, nevertheless, stand out because they significantly affect the uncertainties of a large number of nuclides. These are <SUP>56</SUP>Fe(n,γ), <SUP>64</SUP>Ni(n,γ), and <SUP>138</SUP>Ba(n,γ). We discuss the prospect of reducing uncertainties in the key reactions identified in this study with future experiments. | en_US |
dc.language.iso | eng | en_US |
dc.title | Uncertainties in s-process nucleosynthesis in low-mass stars determined from Monte Carlo variations | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/sty1185 | en_US |
dc.identifier.scopus | 2-s2.0-85060879330 | en_US |
dc.identifier.isi | 000441282300090 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article/478/3/4101/4993260 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 478 | en_US |
dc.relation.issue | 3 | en_US |
dc.relation.firstpage | 4101 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 7 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ITA | en_US |
dc.contributor.country | GBR | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2018MNRAS.478.4101C | en_US |
dc.relation.ercsector | Scienze Fisiche Settori ERC (ERC) di riferimento::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.grantfulltext | open | - |
item.cerifentitytype | Publications | - |
item.openairetype | Article | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.languageiso639-1 | en | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
crisitem.author.dept | O.A. Abruzzo | - |
crisitem.author.orcid | 0000-0001-9683-9406 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
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Cescutti_2018_MNRAS_478_4101.pdf | Pdf editoriale | 2.07 MB | Adobe PDF | View/Open |
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