CO bands in V4334 Sgr (Sakurai's Object): The $\mathsf{^{12}}$C/$\mathsf{^{13}}$C ratio

Ya V Pavlenko,B Smalley,L A Yakovina,V H Tyne,S P S Eyres,T R Geballe,A Evans

doi:10.1051/0004-6361:20040078

CO bands in V4334 Sgr (Sakurai's Object): The $\mathsf{^{12}}$C/$\mathsf{^{13}}$C ratio

Ya V Pavlenko, B Smalley + Show 5 more

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https://doi.org/10.1051/0004-6361:20040078

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Journal: Astronomy & Astrophysics	Publication Date: Mar 26, 2004
Citations: 33

Affiliation: Main Astronomical Observatory, Keele University, University of Central Lancashire, Gemini North Observatory

#Overtone CO Bands #CO Bands + Show 8 more

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Abstract

We present the results of our analysis of a high resolution (R � 30 000) infrared spectrum of V4334 Sgr (Sakurai's Object) around the first overtone CO bands, obtained in 1998 July. The 12 CO and 13 CO bands are well-resolved, and we compute synthetic hydrogen-deficient model atmosphere spectra to determine the 12 C/ 13 C ratio. We find 12 C/ 13 C � 4 ± 1, consistent with

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