Beryllium detection in the very fast nova ASASSN-16kt (V407 Lupi)

DOI: 
10.1093/mnras/sty435
Publication date: 
01/02/2018
Main author: 
Izzo, L.
IAA authors: 
Izzo, L.;Cano, Z.;de Ugarte Postigo, A.;Thöne, C.
Authors: 
Izzo, L.;Molaro, P.;Bonifacio, P.;Della Valle, M.;Cano, Z.;de Ugarte Postigo, A.;Prieto, J. L.;Thöne, C.;Vanzi, L.;Zapata, A.;Fernandez, D.
Journal: 
Monthly Notices of the Royal Astronomical Society
Refereed: 
Yes
Publication type: 
Article
Pages: 
1601-1610
Abstract: 
We present high-resolution spectroscopic observations of the fast nova ASASSN-16kt (V407 Lup). A close inspection of spectra obtained at early stages has revealed the presence of low-ionization lines, and among the others we have identified the presence of the ionised <SUP>7</SUP>Be doublet in a region relatively free from possible contaminants. After studying their intensities, we have inferred that ASASSN-16kt has produced (5.9 - 7.7)× 10<SUP>-9</SUP> M<SUB>☉</SUB> of <SUP>7</SUP>Be. The identification of bright Ne lines may suggest that the nova progenitor is a massive (1.2 M<SUB>☉</SUB>) oxygen-neon white dwarf. The high outburst frequency of oxygen-neon novae implies that they likely produce an amount of Be similar, if not larger, to that produced by carbon-oxygen novae, then confirming that classical novae are among the main factories of lithium in the Galaxy.
Database: 
ADS
SCOPUS
URL: 
https://ui.adsabs.harvard.edu/#abs/2018MNRAS.478.1601I/abstract
ADS Bibcode: 
2018MNRAS.478.1601I
Keywords: 
nuclear reactions;nucleosynthesis;abundances;stars: individual: ASASSN-16kt (V407 Lup);novae;cataclysmic variables;Galaxy: evolution;Astrophysics - Solar and Stellar Astrophysics