SIMBAD references

2004A&A...417L..39P - Astronomy and Astrophysics, volume 417L39-43 (2004/4-3)

CO bands in V4334 Sgr (Sakurai's Object): The 12C/13C ratio.

PAVLENKO Y.V., GEBALLE T.R., EVANS A., SMALLEY B., EYRES S.P.S., TYNE V.H. and YAKOVINA L.A.

Abstract (from CDS):

We present the results of our analysis of a high resolution (R≃30000) infrared spectrum of V4334 Sgr (Sakurai's Object) around the first overtone CO bands, obtained in 1998 July. The 12CO and 13CO bands are well-resolved, and we compute synthetic hydrogen-deficient model atmosphere spectra to determine the 12C/13C ratio. We find 12C/13C≃4±1, consistent with the interpretation of V4334 Sgr as an object that has undergone a very late thermal pulse.

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Journal keyword(s): stars: individual: V4334 Sgr - stars: individual: Sakurai's Object - stars: atmospheric parameters - stars: abundances

Simbad objects: 1

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