Volume 417, Number 3, April III 2004
|Page(s)||L39 - L43|
|Published online||26 March 2004|
Letter to the Editor
CO bands in V4334 Sgr (Sakurai's Object): The C/C ratio
Main Astronomical Observatory, Academy of Sciences of the Ukraine, Golosiiv Woods, Kyiv-127, 03680 Ukraine
2 Gemini Observatory, 670 N. A'ohoku Place, Hilo, Hi 96720, USA
3 Astrophysics Group, School of Chemistry & Physics, Keele University, Keele Staffordshire, ST5 5BG, UK
4 Centre for Astrophysics, University of Central Lancashire, Preston, Lancashire PR1 2HE, UK
Corresponding author: Ya. V. Pavlenko, firstname.lastname@example.org
Accepted: 26 February 2004
We present the results of our analysis of a high resolution () 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.
Key words: stars: individual: V4334 Sqr / stars: individual: Sakurai's Object / stars: atmospheric parameters / stars: abundances
© ESO, 2004
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