Early optical spectra of nova V1369 cen show the presence of lithium

Luca Izzo; Massimo Della Valle; Elena Mason; Francesca Matteucci; Donatella Romano; Luca Pasquini; Leonardo Vanzi; Andres Jordan; José Miguel Fernandez; Paz Bluhm; Rafael Brahm; Nestor Espinoza; Robert Williams

doi:10.1088/2041-8205/808/1/L14

Early optical spectra of nova V1369 cen show the presence of lithium

Luca Izzo, Massimo Della Valle, Elena Mason, Francesca Matteucci, Donatella Romano, Luca Pasquini, Leonardo Vanzi, Andres Jordan, José Miguel Fernandez, Paz Bluhm, Rafael Brahm, Nestor Espinoza, Robert Williams

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Resumen

We present early high-resolution spectroscopic observations of the nova V1369 Cen. We have detected an absorption feature at 6695.6 that we have identified as blueshifted ⁷Li i λ6708. 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 = 0.3-4.8 × 10^-10 . 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.

Idioma original	Inglés
Número de artículo	L14
Publicación	Astrophysical Journal Letters
Volumen	808
N.º	1
DOI	https://doi.org/10.1088/2041-8205/808/1/L14
Estado	Publicada - 20 jul. 2015
Publicado de forma externa	Sí

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title = "Early optical spectra of nova V1369 cen show the presence of lithium",

abstract = "We present early high-resolution spectroscopic observations of the nova V1369 Cen. We have detected an absorption feature at 6695.6 that we have identified as blueshifted 7Li i λ6708. 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 = 0.3-4.8 × 10-10 . 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.",

keywords = "Cataclysmic variables, Galaxy: abundances, Galaxy: evolution, novae",

author = "Luca Izzo and Valle, {Massimo Della} and Elena Mason and Francesca Matteucci and Donatella Romano and Luca Pasquini and Leonardo Vanzi and Andres Jordan and Fernandez, {Jos{\'e} Miguel} and Paz Bluhm and Rafael Brahm and Nestor Espinoza and Robert Williams",

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doi = "10.1088/2041-8205/808/1/L14",

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T1 - Early optical spectra of nova V1369 cen show the presence of lithium

AU - Izzo, Luca

AU - Valle, Massimo Della

AU - Mason, Elena

AU - Matteucci, Francesca

AU - Romano, Donatella

AU - Pasquini, Luca

AU - Vanzi, Leonardo

AU - Jordan, Andres

AU - Fernandez, José Miguel

AU - Bluhm, Paz

AU - Brahm, Rafael

AU - Espinoza, Nestor

AU - Williams, Robert

PY - 2015/7/20

Y1 - 2015/7/20

N2 - We present early high-resolution spectroscopic observations of the nova V1369 Cen. We have detected an absorption feature at 6695.6 that we have identified as blueshifted 7Li i λ6708. 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 = 0.3-4.8 × 10-10 . 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.

AB - We present early high-resolution spectroscopic observations of the nova V1369 Cen. We have detected an absorption feature at 6695.6 that we have identified as blueshifted 7Li i λ6708. 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 = 0.3-4.8 × 10-10 . 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.

KW - Cataclysmic variables

KW - Galaxy: abundances

KW - Galaxy: evolution

KW - novae

UR - http://www.scopus.com/inward/record.url?scp=84958162827&partnerID=8YFLogxK

U2 - 10.1088/2041-8205/808/1/L14

DO - 10.1088/2041-8205/808/1/L14

M3 - Article

AN - SCOPUS:84958162827

SN - 2041-8205

VL - 808

JO - Astrophysical Journal Letters

JF - Astrophysical Journal Letters

IS - 1

M1 - L14

ER -

Early optical spectra of nova V1369 cen show the presence of lithium

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