Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/31552
Campo DC | Valore | Lingua |
---|---|---|
dc.contributor.author | VESCOVI, Diego | en_US |
dc.contributor.author | CRISTALLO, Sergio | en_US |
dc.contributor.author | Palmerini, S. | en_US |
dc.contributor.author | Abia, C. | en_US |
dc.contributor.author | Busso, M. | en_US |
dc.date.accessioned | 2022-03-11T15:38:27Z | - |
dc.date.available | 2022-03-11T15:38:27Z | - |
dc.date.issued | 2021 | en_US |
dc.identifier.issn | 0004-6361 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/31552 | - |
dc.description.abstract | Asymptotic giant branch (AGB) stars are considered to be among the most significant contributors to the fluorine budget in our Galaxy. While observations and theory agree at close-to-solar metallicity, stellar models at lower metallicities overestimate the fluorine production with respect to that of heavy elements. We present <SUP>19</SUP>F nucleosynthesis results for a set of AGB models with different masses and metallicities in which magnetic buoyancy acts as the driving process for the formation of the <SUP>13</SUP>C neutron source (the so-called <SUP>13</SUP>C pocket). We find that <SUP>19</SUP>F is mainly produced as a result of nucleosynthesis involving secondary <SUP>14</SUP>N during convective thermal pulses, with a negligible contribution from the <SUP>14</SUP>N present in the <SUP>13</SUP>C pocket region. A large <SUP>19</SUP>F production is thus prevented, resulting in lower fluorine surface abundances. As a consequence, AGB stellar models with mixing induced by magnetic buoyancy at the base of the convective envelope agree well with available fluorine spectroscopic measurements at low and close-to-solar metallicity. | en_US |
dc.language.iso | eng | en_US |
dc.title | Magnetic-buoyancy-induced mixing in AGB stars: Fluorine nucleosynthesis at different metallicities | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1051/0004-6361/202141173 | en_US |
dc.identifier.scopus | 2-s2.0-85112095096 | en_US |
dc.identifier.isi | WOS:000686499900001 | en_US |
dc.identifier.url | https://www.aanda.org/articles/aa/abs/2021/08/aa41173-21/aa41173-21.html | en_US |
dc.identifier.url | http://arxiv.org/abs/2106.08241v1 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 652 | en_US |
dc.relation.firstpage | A100 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 5 | en_US |
dc.description.international | no | en_US |
dc.contributor.country | ITA | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | ASTRONOMY & ASTROPHYSICS | en_US |
dc.type.miur | 262 Articolo in rivista | en_US |
dc.identifier.adsbibcode | 2021A&A...652A.100V | 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 |
local.message.claim | 2023-12-04T15:29:42.991+0100|||rp10260|||submit_approve|||dc_contributor_author|||None | * |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Article | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | O.A. Abruzzo | - |
crisitem.author.dept | O.A. Abruzzo | - |
crisitem.author.orcid | 0000-0003-0309-4666 | - |
crisitem.author.orcid | 0000-0001-9683-9406 | - |
crisitem.journal.journalissn | 0004-6361 | - |
crisitem.journal.ance | E016240 | - |
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Vescovi_2021_A&A_652_100.pdf | Pdf editoriale | 1.1 MB | Adobe PDF | Visualizza/apri |
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