期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 478, 期 2, 页码 1601-1610出版社
OXFORD UNIV PRESS
DOI: 10.1093/mnras/sty435
关键词
nuclear reactions, nucleosynthesis, abundances; stars: individual: ASASSN-16kt: V407 Lup; novae, cataclysmic variables; Galaxy: evolution
资金
- Spanish research project [AYA 2014-58381-P]
- Ramn y Cajal fellowships Ramon y Cajal (RyC) [2012-09984, RyC-2012-09975]
- Juan de la Cierva Incorporacion fellowship [IJCI-2014-21669]
- Commission Nacional de Investigacion Cientifica y Tecnologica (CONICYT) through project Fondecyt [1171364]
- Conicyt through the 'Beca Doctorado Nacional' [21170536]
- Fondo Nacional de Desarrollo Cientifico y Tecnologico (FONDECYT) [1151445]
- Ministry of Economy, Development, and Tourism's Millennium Science Initiative [IC120009]
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 ionized Be-7 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) x 10(-9)M(circle dot) of Be-7. The identification of bright Ne lines may suggest that the nova progenitor is a massive (1.2 M-circle dot) 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.
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