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dc.date.accessioned 2019-10-28T14:41:36Z
dc.date.available 2019-10-28T14:41:36Z
dc.date.issued 2011
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/84192
dc.description.abstract Many hydrogen-deficient stars are characterized by surface abundance patterns that are hard to reconcile with conventional stellar evolution. Instead, it has been suggested that they may represent the result of a merger episode between a helium and a carbon-oxygen white dwarf. In this Letter, we present a nucleosynthesis study of the merger of a 0.4 M O helium white dwarf with a 0.8 M O carbon-oxygen white dwarf, by coupling the thermodynamic history of Smoothed Particle Hydrodynamics particles with a post-processing code. The resulting chemical abundance pattern, particularly for oxygen and fluorine, is in qualitative agreement with the observed abundances in R Coronae Borealis stars. en
dc.language en es
dc.subject nuclear reactions, nucleosynthesis, abundances es
dc.subject stars: AGB and post-AGB es
dc.subject white dwarfs es
dc.title Nucleosynthesis during the merger of white dwarfs and the origin of R coronae borealis stars en
dc.type Articulo es
sedici.identifier.other doi:10.1088/2041-8205/737/2/L34 es
sedici.identifier.other eid:2-s2.0-80051771506 es
sedici.identifier.issn 2041-8205 es
sedici.creator.person Longland, R. es
sedici.creator.person Lorén-Aguilar, P. es
sedici.creator.person José, J. es
sedici.creator.person García-Berro, E. es
sedici.creator.person Althaus, Leandro Gabriel es
sedici.creator.person Isern, J. es
sedici.subject.materias Ciencias Astronómicas es
sedici.description.fulltext true es
mods.originInfo.place Facultad de Ciencias Astronómicas y Geofísicas es
sedici.subtype Articulo es
sedici.rights.license Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
sedici.rights.uri http://creativecommons.org/licenses/by-nc-sa/4.0/
sedici.description.peerReview peer-review es
sedici.relation.journalTitle Astrophysical Journal Letters es
sedici.relation.journalVolumeAndIssue vol. 737, no. 2 es
sedici.rights.sherpa * Color: verde* Pre-print del autor: si* Post-print del autor: si* Versión de editor/PDF:si* Condiciones:>>On any website, arXiv, scientific social networks (except Research Gate) or non-commercial open access repository.>>Publisher's version/PDF may be used on any website or authors' institutional repository>>Deben reconocerse el copyright y la fuente editorial>>Debe ir enlazado a la versión de editor>>La versión de editor/PDF puede utilizarse>>Authors depositing in arXiv must they choose the first licence statement offered by arXiv when uploading their article � a "non-exclusive licence to distribute">>Publisher last contacted on 10/02/2016>>Publisher last reviewed on 15/08/2017* Link a Sherpa: http://sherpa.ac.uk/romeo/issn/2041-8205/es/


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Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) Excepto donde se diga explícitamente, este item se publica bajo la siguiente licencia Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)