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Early Optical Spectra of Nova V1369 Cen Show the Presence of Lithium

Journal
Date Issued
2015
Author(s)
•
•
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Matteucci, Francesca
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Pasquini, Luca
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Vanzi, Leonardo
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Jordan, Andres
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Fernandez, José Miguel
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Bluhm, Paz
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Brahm, Rafael
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Espinoza, Nestor
•
Williams, Robert
DOI
Description
We thank the referee for constructive comments/criticisms that have improved the paper and Steven Shore, Marina Orio, and Paolo Molaro for useful discussions. We are grateful to Roland Gredel for DDT programme 091.A-9032 B.
Abstract
We present early high-resolution spectroscopic observations of the nova V1369 Cen. We have detected an absorption feature at 6695.6 Å that we have identified as blueshifted 7Li i λ6708 Å. The absorption line, moving at -550 km s-1, was observed in five high-resolution spectra of the nova obtained at different epochs. Based on the intensity of this absorption line, we infer that a single nova outburst can inject in the Galaxy {M}{Li} = 0.3-4.8 × 10-10 {M}☉ . Given the current estimates of the Galactic nova rate, this amount is sufficient to explain the puzzling origin of the overabundance of lithium observed in young star populations.
Volume
808
Issue
1
Start page
L14
Uri
Url
Issn Identifier
2041-8205
Ads BibCode
2015ApJ...808L..14I
Rights
open.access
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