White dwarf mergers and the origin of R coronae borealis stars

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Title:	White dwarf mergers and the origin of R coronae borealis stars
Author:	Lorén Aguilar, Pablo; Longland, Richard Leigh; José Pont, Jordi; García-Berro Montilla, Enrique; Althaus, Leandro Gabriel; Isern-Fontanet, J.
Other authors:	Universitat Politècnica de Catalunya. Departament de Física Aplicada; Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear; Universitat Politècnica de Catalunya. GAA - Grup d'Astronomia i Astrofísica
Abstract:	We present a nucleosynthesis study of the merger of a 0.4 M⊙ helium white dwarf with a 0.8 M⊙ carbon-oxygen white dwarf, 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.
Subject(s):	-Àrees temàtiques de la UPC::Física::Astronomia i astrofísica -Astrophysics. -Astronomy. -White dwarf stars. -Astrofísica -Astronomia -Estels nans -Estels
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Document type:	Article - Published version Conference Object
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