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dc.contributor.authorVescovi, D.
dc.contributor.authorAbia Ladrón De Guevara, Carlos Antonio 
dc.date.accessioned2021-10-13T12:11:03Z
dc.date.available2021-10-13T12:11:03Z
dc.date.issued2021-08-17
dc.identifier.citationD. Vescovi et. al. Magnetic-buoyancy-induced mixing in AGB stars: Fluorine nucleosynthesis at different metallicities. A&A 652, A100 (2021) [10.1051/0004-6361/202141173].es_ES
dc.identifier.urihttp://hdl.handle.net/10481/70828
dc.descriptionDV and SC acknowledge S. Bagnulo for fruitful discussions. DV acknowledges financial support from the German-Israeli Foundation (GIF No. I-1500-303.7/2019). CA acknowledges financial support from the Agencia Estatal de Investigacion of the Spanish Ministerio de Ciencia e Innovacion through the FEDER founds projects PGC2018-095317-B-C2.es_ES
dc.description.abstractAsymptotic 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 F-19 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 C-13 neutron source (the so-called C-13 pocket). We find that F-19 is mainly produced as a result of nucleosynthesis involving secondary N-14 during convective thermal pulses, with a negligible contribution from the N-14 present in the C-13 pocket region. A large F-19 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.es_ES
dc.description.sponsorshipGerman-Israeli Foundation for Scientific Research and Development I-1500-303.7/2019es_ES
dc.description.sponsorshipAgencia Estatal de Investigacion of the Spanish Ministerio de Ciencia e Innovacion through the FEDER founds projects PGC2018-095317-B-C2es_ES
dc.language.isoenges_ES
dc.publisherEDP Sciencees_ES
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subjectAbundanceses_ES
dc.subjectAGB and post-AGBes_ES
dc.subjectMagnetic field es_ES
dc.subjectMagnetohydrodynamics (MHD)es_ES
dc.subjectCarbones_ES
dc.subjectNuclear reactions es_ES
dc.subjectNucleosynthesises_ES
dc.subjectAbundanceses_ES
dc.titleMagnetic-buoyancy-induced mixing in AGB stars: Fluorine nucleosynthesis at different metallicitieses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES
dc.identifier.doi10.1051/0004-6361/202141173
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersiones_ES


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