On the abundance of Lithium in T Coronae Borealis

Abstract

We have obtained high resolution echelle spectroscopy of the recurrent nova T CrB. We find that the surface lithium abundance in T CrB is signifcantly enhanced compared to field M giants, where it is not detectable. We offer possible explanations for this in terms of either a delay in the onset of convection in the giant star, enhanced coronal activity due to star-spots or the enhancement of Li resulting from the nova explosion(s).

3 pages, 1 figure (a and b), accepted by MNRAS

References in corpus (2)

• The NextGen Model Atmosphere grid for $3000\le \Teff \le 10000\K$
• The massive white dwarf in the recurrent nova T CrB

Cited by in corpus (4)

• Recurrent novae as a progenitor system of Type Ia supernovae. I. RS Ophiuchi subclass --- Systems with a red giant companion
• Spectroscopic orbits and variations of RS Oph
• Flickering variability of T Coronae Borealis
• Hydrodynamic simulations of the recurrent nova T Coronae Borealis: Nucleosynthesis predictions