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http://hdl.handle.net/20.500.12386/32501
Titolo: | Beryllium detection in the very fast nova ASASSN-16kt (V407 Lupi) | Autori: | Izzo, L. MOLARO, Paolo Bonifacio, P. DELLA VALLE, Massimo Cano, Z. de Ugarte Postigo, A. Prieto, J. L. Thöne, C. Vanzi, L. Zapata, A. Fernandez, D. |
Data pubblicazione: | 2018 | Rivista: | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | Numero: | 478 | Fascicolo: | 2 | Da pagina:: | 1601 | 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 ionized <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. <P /> | URI: | http://hdl.handle.net/20.500.12386/32501 | URL: | https://academic.oup.com/mnras/article/478/2/1601/4893722 | ISSN: | 0035-8711 | DOI: | 10.1093/mnras/sty435 | Bibcode ADS: | 2018MNRAS.478.1601I | Fulltext: | open |
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