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2015ApJ...808L..14I - Astrophys. J., 808, L14 (2015/July-3)

Early optical spectra of nova V1369 Cen show the presence of lithium.

IZZO L., DELLA VALLE M., MASON E., MATTEUCCI F., ROMANO D., PASQUINI L., VANZI L., JORDAN A., FERNANDEZ J.M., BLUHM P., BRAHM R., ESPINOZA N. and WILLIAMS R.

Abstract (from CDS):

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, 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 = 0.3-4.8x10–10. 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.

Abstract Copyright:

Journal keyword(s): Galaxy: abundances - Galaxy: evolution - novae, cataclysmic variables

Simbad objects: 9

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