Double white dwarf mergers and elemental surface abundances in extreme helium and RCoronaeBorealis stars

The surface abundances of extreme helium (EHe) and RCoronaeBorealis (RCB) stars are discussed in terms of a model for their origin in the merger of a carbon-oxygen white dwarf with a helium white dwarf. The model is expressed as a linear mixture of the individual layers of both constituent white dwa...

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Veröffentlicht in:	Monthly notices of the Royal Astronomical Society 2011-07, Vol.414 (4), p.3599-3616
Hauptverfasser:	Jeffery, C S, Karakas, AI, Saio, H
Format:	Artikel
Sprache:	eng
Schlagworte:	Acquisitions Astronomy Asymptotic properties Carbon Helium Magnesium Mathematical models Origins Stars Stars & galaxies White dwarfs
Online-Zugang:	Volltext
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