CO bands in V4334 Sgr (Sakurai's Object): the 12C/13C ratio
Astrophysics
2009-11-10 v1
Abstract
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.
Cite
@article{arxiv.astro-ph/0402624,
title = {CO bands in V4334 Sgr (Sakurai's Object): the 12C/13C ratio},
author = {Ya. V. Pavlenko and T. R. Geballe and A. Evans and B. Smalley and S. P. S. Eyres and V. H. Tyne and L. A. Yakovina},
journal= {arXiv preprint arXiv:astro-ph/0402624},
year = {2009}
}
Comments
5 pages, 7 figs, accepted by AAL