Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: CO bands in V4334 Sgr (Sakurai's Object): the 12C/13C ratio   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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The categories of this paper are: mtrl-th
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The categories of this paper are: gr-qc
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The categories of this paper are: plasm-ph
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The categories of this paper are: q-alg
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The categories of this paper are: math
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The categories of this paper are: bayes-an
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The categories of this paper are: comp-gas
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The categories of this paper are: nucl-th
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-ph
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The categories of this paper are: physics
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The categories of this paper are: acc-phys
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The categories of this paper are: q-bio
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The categories of this paper are: cs
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The categories of this paper are: stat
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The categories of this paper are: ao-sci