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

Journal
Date Issued
2018
Author(s)
Izzo, L.
•
•
Bonifacio, P.
•
•
Cano, Z.
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de Ugarte Postigo, A.
•
Prieto, J. L.
•
Thöne, C.
•
Vanzi, L.
•
Zapata, A.
•
Fernandez, D.
DOI
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 7Be 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)× 10-9 M☉ of 7Be. The identification of bright Ne lines may suggest that the nova progenitor is a massive (1.2 M☉) 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.

Volume
478
Issue
2
Start page
1601
Uri
Url
Issn Identifier
0035-8711
Ads BibCode
2018MNRAS.478.1601I
Rights
open.access
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