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arXiv · 1110.1855

White dwarf mergers and the origin of R Coronae Borealis stars

P. Lorén-Aguilar·R. Longland·J. José·E. García-Berro·L. G. Althaus·J. Isern
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Abstract

We present a nucleosynthesis study of the merger of a 0.4 solar masses helium white dwarf with a 0.8 solar masses 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.

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P. Lorén-Aguilar, R. Longland, J. José, E. García-Berro, L. G. Althaus, J. Isern. 2011-10-09. White dwarf mergers and the origin of R Coronae Borealis stars. https://arxiv.org/abs/1110.1855

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